# Vacuum Pumps Manufacturers, Custom Vacuum Pumps Suppliers

> Development Vacuum Equipment CO., Ltd is China vacuum pumps manufacturer and vacuum pumps suppliers, our factory specializing in custom vacuum pumps, 35 years of experience, and products include a variety of different types

### Company
Development Vacuum Equipment Co.,Ltd.

## About Us

- [About Us](https://www.dvevacuum.com/about/):Development Vacuum Equipment CO., Ltd is China vacuum pumps manufacturer and vacuum pumps suppliers, our factory specializing in custom vacuum pumps, 35 years of experience, and products include a variety of different types
- [Contact Us](https://www.dvevacuum.com/contact/):Development Vacuum Equipment Co.,Ltd., +86-5576-83598309, LIN@dvepump.cn, Donggang Industrial Zone,Silin, Sanmen,Zhejiang,China
- [Application](https://www.dvevacuum.com/solution/):Application-Development Vacuum Equipment Co.,Ltd.
- [Service](https://www.dvevacuum.com/service/):Service-Development Vacuum Equipment Co.,Ltd.

## Products

- [Products](https://www.dvevacuum.com/product/):OEM & ODM Vacuum Equipment Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China vacuum equipment manufacturers and vacuum equipment suppliers, offer OEM and ODM Vacuum Equipment more than 35 years
- [Rotary Piston Vacuum Pumps](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/):Custom Rotary Piston Vacuum Pumps Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China rotary piston vacuum pumps manufacturers and Custom rotary piston vacuum pumps suppliers, our factory offer wholesale rotary piston vacuum pump for sale
- [Roots Vacuum Pumps](https://www.dvevacuum.com/product/screw-dry-vacuum-pump-1/):Wholesale OEM Roots Vacuum Pumps Manufacturers, Suppliers-As a China custom roots vacuum pumps manufacturers and OEM roots vacuum pumps suppliers, Development Vacuum Equipment CO., Ltd offer wholesale roots vacuum pumps with advanced structure and excellent performance.
- [Variable Pitch Screw Dry Vacuum Pumps](https://www.dvevacuum.com/product/screw-dry-vacuum-pump/):China Custom Dry Screw Vacuum Pumps Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China screw vacuum pumps manufacturers and custom dry vacuum pump suppliers, factory offer wholesale Variable Pitch Screw Dry Vacuum Pumps online
- [Rotary Vane Vacuum Pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/):Custom Rotary Vane Vacuum Pumps Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China Rotary Vane Vacuum Pumps Manufacturers and custom  Rotary Vane Vacuum Pump Suppliers, factory offer wholesale Rotary Vane Vacuum Pump online
- [Water  (Liquid) Ring Vacuum Pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/):Water  (Liquid) Ring Vacuum Pumps Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China wholesale Water (Liquid) Ring Vacuum Pumps Manufacturers and custom Water (Liquid) Ring Vacuum Pumps suppliers
- [Oil Diffusion Vacuum Pumps](https://www.dvevacuum.com/product/oil-diffusion-vacuum-pumps/):Custom Oil Diffusion Vacuum Pumps Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China Oil Diffusion Vacuum Pumps Manufacturers and custom Oil Diffusion Vacuum Pump suppliers, factory offer wholesale Oil Diffusion Vacuum Pumps online
- [Oil Diffusion Ejector Vacuum Pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-1/):Oil Diffusion Ejector Vacuum Pumps-Development Vacuum Equipment Co.,Ltd.-Oil Diffusion Ejector Vacuum Pumps-Development Vacuum Equipment Co.,Ltd.
- [Vacuum Pump Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/):Custom Wholesale Vacuum Pump System Manufacturers, Suppliers-Development Vacuum Equipment CO., Ltd is China vacuum pump system manufacturers and custom vacuum pump system suppliers, our factory offer wholesale vacuum pump system online
- [Vacuum Valves](https://www.dvevacuum.com/product/vacuum-valves/):Vacuum Valve Manufacturers, Wholesale Vacuum Valve Suppliers-Development Vacuum Equipment CO., Ltd is China vacuum valves manufacturers and custom vacuum valves suppliers, our factory offer wholesale vacuum valves online
- [Vacuum Accessories](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/):China Custom Vacuum Pump Accessories Suppliers, Manufacturers-Development Vacuum Equipment CO., Ltd is China vacuum pump accessories suppliers and custom vacuum accessories manufacturers, our factory offer wholesale  vacuum pump accessories online
- [2H-15DVA](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h15dva.html):2H-15DVA
- [2H-45DVA](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h45dva.html):2H-45DVA
- [2H-90DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h90dv.html):2H-90DV
- [2H-120DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h120dv.html):2H-120DV
- [2H-160DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h160dv.html):2H-160DV
- [2H-450DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/2h450dv.html):2H-450DV
- [H-60DVA](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h60dva.html):H-60DVA
- [H-160DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h160dv.html):H-160DV
- [H-150DVS](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h150dvs.html):H-150DVS
- [H-160DVS](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h160dvs.html):H-160DVS
- [H-300DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h300dv.html):H-300DV
- [H-600DV](https://www.dvevacuum.com/product/rotary-piston-vacuum-pump/h600dv.html):H-600DV
- [ZJ-2000DV2](https://www.dvevacuum.com/product/screw-dry-vacuum-pump-1/zj2000dv2.html):ZJ-2000DV2
- [ZJP-2500DV1](https://www.dvevacuum.com/product/screw-dry-vacuum-pump-1/zjp2500dv1.html):ZJP-2500DV1
- [ZJ-2000DV1](https://www.dvevacuum.com/product/screw-dry-vacuum-pump-1/zj2000dv1-1.html):ZJ-2000DV1
- [ZJ-600DV2](https://www.dvevacuum.com/product/screw-dry-vacuum-pump-1/zj600dv2.html):ZJ-600DV2
- [SVP-80-71](https://www.dvevacuum.com/product/screw-dry-vacuum-pump/svp8071.html):SVP-80-71
- [SVP](https://www.dvevacuum.com/product/screw-dry-vacuum-pump/8.html):SVP
- [SVP](https://www.dvevacuum.com/product/screw-dry-vacuum-pump/12.html):SVP
- [ZJ-70DV1.H-25DVA](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/zj70dv1-h25dva.html):ZJ-70DV1.H-25DVA
- [Roots Pump With Rotary Piston Vacuum Pump Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-pump-with-rotary-piston-vacuum-pump-systems-3.html):Roots Pump With Rotary Piston Vacuum Pump Systems
- [Roots Pump With Rotary Piston Vacuum Pump Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-pump-with-rotary-piston-vacuum-pump-systems-2.html):Roots Pump With Rotary Piston Vacuum Pump Systems
- [Roots Pump With Rotary Piston Vacuum Pump Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-pump-with-rotary-piston-vacuum-pump-systems-1.html):Roots Pump With Rotary Piston Vacuum Pump Systems
- [Roots Pump With Rotary Piston Vacuum Pump Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-pump-with-rotary-piston-vacuum-pump-systems.html):Roots Pump With Rotary Piston Vacuum Pump Systems
- [2XZ-15C](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/2xz15c.html):2XZ-15C
- [2XZ-25C](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/2xz25c.html):2XZ-25C
- [XD SERIES ROTARY VANE VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/xd-series-rotary-vane-vacuum-pumps.html):XD SERIES ROTARY VANE VACUUM PUMPS
- [XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/xz-2xz-series-rotary-vane-vacuum-pumps.html):XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS
- [XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/xz-2xz-series-rotary-vane-vacuum-pumps-1.html):XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS
- [XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/xz-2xz-series-rotary-vane-vacuum-pumps-2.html):XZ, 2XZ SERIES ROTARY VANE VACUUM PUMPS
- [Roots Pump With Water Ring Pump Vacuum System](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-pump-with-water-ring-pump-vacuum-system.html):Roots Pump With Water Ring Pump Vacuum System
- [Oil Diffusion Vacuum Systems](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/oil-diffusion-vacuum-systems.html):Oil Diffusion Vacuum Systems
- [Vacuum Pump Stations](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/vacuum-pump-stations.html):Vacuum Pump Stations
- [2X Series Rotary Vane Vacuum Pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump/2x-series-rotary-vane-vacuum-pumps.html):2X Series Rotary Vane Vacuum Pumps
- [2BVA](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/2bva.html):2BVA
- [2BEA](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/2bea.html):2BEA
- [2YK-12](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/2yk12.html):2YK-12
- [SK-T](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/skt.html):SK-T
- [2SK](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-3/2sk.html):2SK
- [KT OIL DIFFUSION VACUUM PUMP](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-1/kt-oil-diffusion-vacuum-pump.html):KT OIL DIFFUSION VACUUM PUMP
- [2XZL-400](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-1/2xzl400.html):2XZL-400
- [STAINLESS STEEL BELLOWS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/stainless-steel-bellows.html):STAINLESS STEEL BELLOWS
- [SHOCK ABSORBERS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/shock-absorbers.html):SHOCK ABSORBERS
- [SHOCK ABSORBERS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/shock-absorbers-1.html):SHOCK ABSORBERS
- [SHOCK ABSORBERS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/shock-absorbers-2.html):SHOCK ABSORBERS
- [VACUUM GAUGE](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/vacuum-gauge.html):VACUUM GAUGE
- [INLET VACUUM FILTERS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/inlet-vacuum-filters.html):INLET VACUUM FILTERS
- [SPARE PARTS OF VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/spare-parts-of-vacuum-pumps.html):SPARE PARTS OF VACUUM PUMPS
- [SPARE PARTS OF VACUUM PUMPS](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-2/spare-parts-of-vacuum-pumps-1.html):SPARE PARTS OF VACUUM PUMPS
- [DYC -JQ series](https://www.dvevacuum.com/product/vacuum-valves/dyc-jq-series.html):DYC -JQ series
- [DYC -JQ series](https://www.dvevacuum.com/product/vacuum-valves/dyc-jq-series-1.html):DYC -JQ series
- [DYC -JQ series](https://www.dvevacuum.com/product/vacuum-valves/dyc-jq-series-2.html):DYC -JQ series
- [DYC -Q series](https://www.dvevacuum.com/product/vacuum-valves/dyc-q-series.html):DYC -Q series
- [GDQ-J series](https://www.dvevacuum.com/product/vacuum-valves/gdqj-series.html):GDQ-J series
- [GDQ-J series](https://www.dvevacuum.com/product/vacuum-valves/gdqj-series-1.html):GDQ-J series
- [GDQ-J series](https://www.dvevacuum.com/product/vacuum-valves/gdqj-series-2.html):GDQ-J series
- [GD-J series](https://www.dvevacuum.com/product/vacuum-valves/gdj-series.html):GD-J series
- [GDC-Q5 series](https://www.dvevacuum.com/product/vacuum-valves/gdcq5-series.html):GDC-Q5 series
- [GI series](https://www.dvevacuum.com/product/vacuum-valves/gi-series.html):GI series
- [GU series](https://www.dvevacuum.com/product/vacuum-valves/gu-series.html):GU series
- [GU series](https://www.dvevacuum.com/product/vacuum-valves/gu-series-1.html):GU series
- [GID series](https://www.dvevacuum.com/product/vacuum-valves/gid-series.html):GID series
- [GIQ series](https://www.dvevacuum.com/product/vacuum-valves/giq-series.html):GIQ series
- [Roots with Screw Dry Vacuum pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-with-screw-dry-vacuum-pumps.html):Roots with Screw Dry Vacuum pumps
- [Roots with Screw Dry Vacuum pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-with-screw-dry-vacuum-pumps-1.html):Roots with Screw Dry Vacuum pumps
- [Roots with Screw Dry Vacuum pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-with-screw-dry-vacuum-pumps-2.html):Roots with Screw Dry Vacuum pumps
- [Roots with Screw Dry Vacuum pumps](https://www.dvevacuum.com/product/rotary-vane-vacuum-pump-4/roots-with-screw-dry-vacuum-pumps-3.html):Roots with Screw Dry Vacuum pumps

## News

[News](https://www.dvevacuum.com/news/)
[Company News](https://www.dvevacuum.com/news/company-news/)
[Industry News](https://www.dvevacuum.com/news/industry-news/)

- [Vacuum system volume and out-gassing volume](https://www.dvevacuum.com/news/vacuum-system-volume-and-outgassing-volume.html):The media, temperature, and characteristics of exhausting gas(such as: whether the exhausting gas contains flammable, explosive, toxic ...
- [The time required for exhausting to the working vacuum](https://www.dvevacuum.com/news/Vacuum-system-volume-and-outgassing-volume-1.html):The media, temperature, and characteristics of exhausting gas(such as: whether the exhausting gas contains flammable, explosive, toxic ...
- [Dry screw vacuum pump cavity without oil lubrication, can obtain clean vacuum](https://www.dvevacuum.com/news/Vacuum-system-volume-and-outgassing-volume-2.html):Dry screw vacuum pump cavity without oil lubrication can obtain clean vacuum; pump working cavity and spiral rotor surface with anti-corrosion coating can adapt...
- [How to choose a water ring vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-choose-a-water-ring-vacuum-pump.html): The type of pump is mainly determined by the air volume, vacuum degree or exhaust pressure required for work. When the pump is working, you need to pay attenti...
- [How about the performance of the water ring vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-about-the-performance-of-the-water-ring-vacuum-pump.html): The water ring vacuum pump is used to suck air and other non-corrosive, water-insoluble, and non-solid particles in the gas to form a vacuum in a closed contai...
- [What is the working principle of the water ring vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-working-principle-of-the-water-ring-vacuum-pump.html): Water ring vacuum pump (abbreviated as water ring pump) is a kind of rough vacuum pump. The ultimate pressure it can obtain is 2.66～9.31kPa for single-stage pu...
- [What is a rotary piston vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-a-rotary-piston-vacuum-pump.html): Rotary Piston Vacuum Pumps is the latest technology within the industry. They are highly dependable and have consistently met customer demand over the years. R...
- [How to use the cooling tower and condenser of the water ring vacuum pump correctly?](https://www.dvevacuum.com/news/industry-news/how-to-use-the-cooling-tower-and-condenser-of-the-water-ring-vacuum-pump-correctly.html): Water ring vacuum pumps use water as the working fluid under normal circumstances. The purpose of vacuuming is achieved during the suction and discharge of wat...
- [How to classify liquid ring pumps?](https://www.dvevacuum.com/news/industry-news/how-to-classify-liquid-ring-pumps.html): Classified by suction and exhaust state1) Liquid ring pump. A liquid ring pump in which the inlet of the pump is in a vacuum state and the outlet is in an atmo...
- [The main factors affecting the function of the vacuum pump](https://www.dvevacuum.com/news/industry-news/the-main-factors-affecting-the-function-of-the-vacuum-pump.html): 1. The influence of condensed water:Condensate has an insignificant position in a multi-stage vacuum pump. In order to ensure that the condensate can fully con...
- [Why does the vacuum pump damage often occur in the vacuum drying system?](https://www.dvevacuum.com/news/industry-news/why-does-the-vacuum-pump-damage-often-occur-in-the-vacuum-drying-system.html): The vacuum system used for vacuum drying equipment often has the above-mentioned phenomenon that causes the damage of the vacuum pump. Because the purpose of v...
- [How to choose a high-quality dry vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-choose-a-highquality-dry-vacuum-pump.html): Dry vacuum pumps are the development trend of the industry in the future. Although they are not used much now, in addition to the high price, users also have i...
- [How to prevent the explosion of the exhaust pipe of the vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-prevent-the-explosion-of-the-exhaust-pipe-of-the-vacuum-pump.html): Through the analysis of the causes of many accidents, in order to effectively eliminate the explosion of the vacuum pump exhaust pipe, a series of safety techn...
- [How to install a suitable vacuum line for the vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-install-a-suitable-vacuum-line-for-the-vacuum-pump.html): The vacuum pipeline is an important part of the vacuum extruder of the vacuum pump. It mainly includes the air filter (such as gas, oil, and water separator) i...
- [Why is the vacuum pump overloaded?](https://www.dvevacuum.com/news/industry-news/why-is-the-vacuum-pump-overloaded.html): Combined with the installation form and working principle of the vacuum pump, analyze the reasons for the overload and low efficiency of the vacuum pump: (1) T...
- [How do different types of vacuum pumps work?](https://www.dvevacuum.com/news/industry-news/how-do-different-types-of-vacuum-pumps-work.html): Different types of vacuum pumps have different functions and working principles, and the specific processes used are also different. This article describes the...
- [How to prevent fouling of vacuum pumps?](https://www.dvevacuum.com/news/industry-news/how-to-prevent-fouling-of-vacuum-pumps.html): The water quality and operating temperature of the circulating water exceeding a certain index are the main reasons for the fouling of the vacuum pump. Among w...
- [What are the precautions for vacuum pump plus atmospheric ejector?](https://www.dvevacuum.com/news/industry-news/what-are-the-precautions-for-vacuum-pump-plus-atmospheric-ejector.html): Add a spray device to the vacuum pump for testing. The spray device is a nozzle and a diffuser tube combination device. The power source uses the original vacu...
- [What are the advantages of vacuum pump plus atmospheric ejector?](https://www.dvevacuum.com/news/industry-news/what-are-the-advantages-of-vacuum-pump-plus-atmospheric-ejector.html): After the vacuum pump is equipped with an ejector, the system vacuum is maintained, but the gas passing through the vacuum pump is the system intake and drivin...
- [What effect does the cooling system temperature have on the performance of the vacuum pump unit?](https://www.dvevacuum.com/news/industry-news/what-effect-does-the-cooling-system-temperature-have-on-the-performance-of-the-vacuum-pump-unit.html): The vacuum pump sealing water is taken from the closed-type water replenishment. In summer, the closed-type water temperature can reach up to 35°C. Therefore, ...
- [How to choose the backing pump of the roots vacuum pump unit?](https://www.dvevacuum.com/news/industry-news/how-to-choose-the-backing-pump-of-the-roots-vacuum-pump-unit.html): Roots vacuum pump cannot be used alone. It must be equipped with a foreline pump to form a unit. The foreline vacuum pump is used to reduce the discharge press...
- [What are the characteristics and uses of the ZJ Roots vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-and-uses-of-the-zj-roots-vacuum-pump.html):The ZJ Roots vacuum pump is mainly composed of a pair of synchronous high-speed rotating "8" shaped rotors and two semicircular pump chambers.The pump cannot be...
- [Comparison of oil-free dry variable pitch screw vacuum pump and water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/comparison-of-oilfree-dry-variable-pitch-screw-vacuum-pump-and-water-ring-vacuum-pump.html):1. The ultimate vacuum of the water ring vacuum pump and the liquid ring vacuum pump is around 2000PA. To achieve a higher degree of vacuum, it is necessary to ...
- [Friction loss of vacuum pump oil](https://www.dvevacuum.com/news/industry-news/friction-loss-of-vacuum-pump-oil.html): DVE vacuum pump oil plays the role of sealing, lubricating, cooling and opening the exhaust valve in the pump, so the pump oil participates in compression and ...
- [How to reduce the temperature of the suction gas of the vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-reduce-the-temperature-of-the-suction-gas-of-the-vacuum-pump.html): One of the important sources of heat in the sealing water of DVE vacuum pump is the air-water vapor mixture drawn from the condenser. Lowering the temperature ...
- [Installation and trial operation of vacuum pump](https://www.dvevacuum.com/news/industry-news/installation-and-trial-operation-of-vacuum-pump.html): DVE vacuum pump is an important part of the oil and gas recovery device, and its reliability determines the reliability of the device's long-term operation. Th...
- [Analysis of Vacuum Pump Damage Frequently Occurred in Vacuum Drying System](https://www.dvevacuum.com/news/industry-news/analysis-of-vacuum-pump-damage-frequently-occurred-in-vacuum-drying-system.html): The vacuum system used for vacuum drying equipment often has the above-mentioned phenomenon that causes the damage of the DVE vacuum pump. Because the purpose ...
- [Problems in the use of medical vacuum negative pressure station system](https://www.dvevacuum.com/news/industry-news/problems-in-the-use-of-medical-vacuum-negative-pressure-station-system.html): The medical vacuum negative pressure system will have more or less problems in use. After checking the system by our company’s technicians, it is found that th...
- [How to determine the suction pressure when selecting a vacuum pump in an alumina plant?](https://www.dvevacuum.com/news/industry-news/how-to-determine-the-suction-pressure-when-selecting-a-vacuum-pump-in-an-alumina-plant.html): When selecting DVE vacuum pumps, alumina plants should pay attention to the following points when considering suction pressure: ①Because the filter is too high...
- [Why is the temperature of the rotary vane vacuum pump too high?](https://www.dvevacuum.com/news/industry-news/why-is-the-temperature-of-the-rotary-vane-vacuum-pump-too-high.html): The temperature of the rotary vane DVE vacuum pump will inevitably be too high during use. The main reasons that cause the internal cavity of the rotary vane D...
- [What kind of dry vacuum pumps are used in the semiconductor process?](https://www.dvevacuum.com/news/industry-news/what-kind-of-dry-vacuum-pumps-are-used-in-the-semiconductor-process.html): Oil-type DVE vacuum pumps are commonly used types of DVE vacuum pumps in the semiconductor industry. The main feature is high vacuum, which can meet the specia...
- [Application of vacuum pump in vacuum grouting technology](https://www.dvevacuum.com/news/industry-news/application-of-vacuum-pump-in-vacuum-grouting-technology.html): Vacuum grouting is a commonly used process in bridge concrete structures, and grouting of pores is a very critical link. The traditional grouting process will ...
- [Troubles and troubleshooting methods of vacuum pumps for vehicles](https://www.dvevacuum.com/news/industry-news/troubles-and-troubleshooting-methods-of-vacuum-pumps-for-vehicles.html): At present, the power systems of medium-sized automobiles and agricultural vehicles are generally equipped with DVE vacuum pumps and motors, which not only pro...
- [The method of maintaining the tightness of the vacuum pump](https://www.dvevacuum.com/news/industry-news/the-method-of-maintaining-the-tightness-of-the-vacuum-pump.html): 1. Reduce equipment leakage pointsStrengthen the detection methods, and strive to minimize the leakage of equipment in the manufacturing process of DVE vacuum ...
- [The solution to the overheating of the vacuum pump motor](https://www.dvevacuum.com/news/industry-news/the-solution-to-the-overheating-of-the-vacuum-pump-motor.html):The DVE vacuum pump motor will have overcurrent phenomenon after overheating. If the motor power is not unplugged in time, it is likely to cause the motor to bu...
- [Three methods of vacuum dechlorination](https://www.dvevacuum.com/news/industry-news/three-methods-of-vacuum-dechlorination.html):Dechlorination by reduced pressure is to inject an appropriate amount of hydrochloric acid into dilute brine, adjust the pH to 1.8~2.2, and keep the vacuum at a...
- [What is the important role of the one-way valve on the biogas suction truck?](https://www.dvevacuum.com/news/industry-news/what-is-the-important-role-of-the-oneway-valve-on-the-biogas-suction-truck.html):After discovering this situation during the trial production of the biogas slag suction truck with the DVE vacuum pump, the piping system was carefully analyzed...
- [What are the problems with the vacuum pump on the biogas slag suction truck?](https://www.dvevacuum.com/news/industry-news/what-are-the-problems-with-the-vacuum-pump-on-the-biogas-slag-suction-truck.html):1. When the DVE vacuum pump pumps air out of the tank and reaches a certain negative pressure for the slag suction operation, usually close the back-end valve f...
- [Operation and use of vacuum pump and vacuum mud mixer](https://www.dvevacuum.com/news/industry-news/operation-and-use-of-vacuum-pump-and-vacuum-mud-mixer.html):In order to obtain a higher degree of vacuum for the vacuum clay mixer, in addition to ensuring that the vacuum system is well sealed and airtight, within a cer...
- [What is the cause of vacuum pump cavitation?](https://www.dvevacuum.com/news/industry-news/what-is-the-cause-of-vacuum-pump-cavitation.html):Cavitation is a kind of high-noise and very destructive phenomenon that often occurs in hydraulic machinery. In vacuum acquisition equipment, the cavitation of ...
- [Application of oil-free vacuum pump in vacuum recovery](https://www.dvevacuum.com/news/industry-news/application-of-oilfree-vacuum-pump-in-vacuum-recovery.html):In today's increasingly stringent environmental protection requirements, oil-free clean DVE vacuum pumps play an important role in modern industry. The configur...
- [Use of He Mass Spectrometer Leak Detector in Semiconductor Vacuum System](https://www.dvevacuum.com/news/industry-news/use-of-he-mass-spectrometer-leak-detector-in-semiconductor-vacuum-system.html):The failure of the vacuum system of semiconductor equipment is generally divided into two categories: one is the failure of the DVE vacuum pump unit and measure...
- [Thoughts on the team building of Development Vacuum Equipment Co., Ltd.](https://www.dvevacuum.com/news/outreach-activities/thoughts-on-the-team-building-of-development-vacuum-equipment-co-ltd.html):On November 9, 2021, the company organized all employees and their families to carry out the autumn expansion team building activities. Thank the company for pr...
- [The working principle of dry screw vacuum pump](https://www.dvevacuum.com/news/technical-article/the-working-principle-of-dry-screw-vacuum-pump.html):Dry screw vacuum pump is a kind of vacuum pumping equipment that uses a pair of screws to rotate synchronously in the pump casing at high speed and reverse to p...
- [How to save energy for vacuum extruder in brick and tile factory?](https://www.dvevacuum.com/news/industry-news/how-to-save-energy-for-vacuum-extruder-in-brick-and-tile-factory.html):In the current conservation-oriented society, how to save energy has become a very important task for every brick and tile enterprise, and it also saves costs f...
- [What is the basis for the selection of the main pump of the vacuum unit?](https://www.dvevacuum.com/news/industry-news/what-is-the-basis-for-the-selection-of-the-main-pump-of-the-vacuum-unit.html):(1) Determine the type of the main pump of the vacuum unit based on the ultimate vacuum that the vacuum chamber needs to reach when there is no load.The ultimat...
- [Overview of basic knowledge of slide valve vacuum pump](https://www.dvevacuum.com/news/technical-article/overview-of-basic-knowledge-of-slide-valve-vacuum-pump.html):Spool valve vacuum pump is abbreviated as spool valve pump. The full name of spool valve vacuum pump is a kind of oil-sealed rotary variable volume mechanical v...
- [How to use oil-sealed vacuum pumps correctly in the semiconductor industry](https://www.dvevacuum.com/news/industry-news/how-to-use-oilsealed-vacuum-pumps-correctly-in-the-semiconductor-industry.html):The oil-sealed DVE vacuum pump is the rotary vane DVE vacuum pump, which is generally the front stage DVE vacuum pump of the vacuum unit. This kind of pump comp...
- [Vacuum system capable of pumping water vapor and condensable gas in chemical plant](https://www.dvevacuum.com/news/industry-news/vacuum-system-capable-of-pumping-water-vapor-and-condensable-gas-in-chemical-plant.html):In the process of vacuum distillation, dehydration, concentration, and drying in the chemical, pharmaceutical and other industries, not only the vacuum system i...
- [How to maintain the vacuum pump in the use of brick machine?](https://www.dvevacuum.com/news/industry-news/how-to-maintain-the-vacuum-pump-in-the-use-of-brick-machine.html):In the process of using vacuum brick machine, the most commonly used are water ring DVE vacuum pump (2SK type water ring DVE vacuum pump), reciprocating DVE vac...
- [What are the problems with vacuum pump selection?](https://www.dvevacuum.com/news/industry-news/what-are-the-problems-with-vacuum-pump-selection.html):DVE vacuum pump is the key equipment in the process of vacuum drying. When choosing the type of DVE vacuum pump, you should consider whether it is suitable for ...
- [The importance of regular inspection of cooling water for vacuum pumps](https://www.dvevacuum.com/news/industry-news/the-importance-of-regular-inspection-of-cooling-water-for-vacuum-pumps.html):Because the vacuum system needs a lot of water for cooling. In order to save water, we generally use closed-loop cooling water system to provide DVE vacuum pump...
- [Prospects of vacuum pumps in high-tech industries](https://www.dvevacuum.com/news/industry-news/prospects-of-vacuum-pumps-in-hightech-industries.html):Now in the vacuum industry, oil-free DVE vacuum pumps with good cleanliness and high vacuum are attracting more and more attention from various industries. The ...
- [Application of vacuum pump in automation equipment](https://www.dvevacuum.com/news/industry-news/application-of-vacuum-pump-in-automation-equipment.html):In recent years, DVE vacuum pumps have become more and more widely used. High-efficiency, clean, small and economic vacuum systems have promoted the application...
- [Improvement of Vacuum Pump System in Beer Technology](https://www.dvevacuum.com/news/industry-news/improvement-of-vacuum-pump-system-in-beer-technology.html):In fact, the beer that we often drink needs to be vacuumed with the DVE vacuum pump system before the final lid, which is mainly used in the wine filling proces...
- [What is the reason for the high temperature of the vacuum pump motor?](https://www.dvevacuum.com/news/industry-news/what-is-the-reason-for-the-high-temperature-of-the-vacuum-pump-motor.html):Every summer, the motor temperature of the DVE vacuum pump will exceed the limit. In severe cases, it will overcurrent and cause damage to the motor. It is nece...
- [How to improve the water replenishment method of the vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-improve-the-water-replenishment-method-of-the-vacuum-pump.html):DVE vacuum pump water supply is changed from condensed water to demineralized water, which is connected to the water supply pipe of the condenser. This has two ...
- [Update and development requirements of vacuum pump in coal industry](https://www.dvevacuum.com/news/industry-news/update-and-development-requirements-of-vacuum-pump-in-coal-industry.html):Coalbed methane is generally adsorbed on the coalbed and undergoes three production processes: drainage, depressurization, and gas extraction.The DVE vacuum pum...
- [The main performance of vacuum annealing furnace](https://www.dvevacuum.com/news/industry-news/the-main-performance-of-vacuum-annealing-furnace.html):The performance of the vacuum annealing furnace is mainly reflected in the following parameters: outgassing, pumping rate, ultimate vacuum and leakage rate.1. D...
- [The overview of Roots Vacuum Pumps](https://www.dvevacuum.com/news/industry-news/the-overview-of-roots-vacuum-pumps.html):Roots vacuum is a mechanical booster pump used to obtain medium and low vacuum and also belongs to dry vacuum pump. It can generate suction and exhaust through ...
- [Demonstration of working principle of water ring vacuum pump/liquid ring vacuum pump](https://www.dvevacuum.com/news/industry-news/demonstration-of-working-principle-of-water-ring-vacuum-pump-liquid-ring-vacuum-pump.html):Water ring vacuum pump (referred to as water ring pump) is a kind of rough vacuum pump, the ultimate vacuum it can obtain is 2000~4000Pa, and the series atmosph...
- [The overview of Rotary Vane Vacuum Pump](https://www.dvevacuum.com/news/industry-news/the-overview-of-rotary-vane-vacuum-pump.html):Rotary vane vacuum pump (referred to as rotary vane pump) is an oil-sealed mechanical vacuum pump. Its working pressure range is 101325~1.33×10-2(Pa), which bel...
- [What are the characteristics of Roots vacuum pump unit?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-of-roots-vacuum-pump-unit.html):1. There is a certain gap between the rotor and the pump cavity, the rotor and the rotor, and they do not contact each other and do not need to be lubricated wi...
- [What is the operation method of Roots vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-operation-method-of-roots-vacuum-pump.html):1. Low wind pressure and high current: This happens more often, the main reason is that there is too much dust on the inlet filter of the Roots vacuum pump and ...
- [How to adjust the clearance of Roots vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-adjust-the-clearance-of-roots-vacuum-pump.html):Once there is a gap in the internal parts of the Roots vacuum pump, it will not only cause the parts to loosen, but also lead to the deposition of debris and bl...
- [How to see the exhaust pressure of the equipment?](https://www.dvevacuum.com/news/industry-news/how-to-see-the-exhaust-pressure-of-the-equipment.html):Any machinery and equipment will be under pressure. Water ring vacuum pump equipment mainly relies on pressure to work efficiently. Therefore, appropriate decom...
- [What is the cause of scale formation in vacuum pumps?](https://www.dvevacuum.com/news/industry-news/what-is-the-cause-of-scale-formation-in-vacuum-pumps.html):In the papermaking industry, the working medium of the vacuum pump (that is, the supplementary liquid) is mainly used directly from tap water or papermaking whi...
- [What effect does the air state have on the vacuum pump's delayed on time?](https://www.dvevacuum.com/news/industry-news/what-effect-does-the-air-state-have-on-the-vacuum-pump-s-delayed-on-time.html):As the air temperature of the vacuum chamber increases, the delayed on-time of the vacuum pump gradually increases.Because when the relative humidity is constan...
- [How does a spool valve vacuum pump reduce noise?](https://www.dvevacuum.com/news/industry-news/how-does-a-spool-valve-vacuum-pump-reduce-noise.html):The slide valve vacuum pump is also a vacuum pump widely used in many vacuum equipment. It has the advantages of high pumping speed, simple structure, reliable ...
- [Why is the vacuum degree of the water ring vacuum pump reduced in summer?](https://www.dvevacuum.com/news/industry-news/why-is-the-vacuum-degree-of-the-water-ring-vacuum-pump-reduced-in-summer.html):The vacuum degree of the vacuum pump (especially the water ring vacuum pump) is always unreachable. It has been fine before, but suddenly the vacuum degree has ...
- [What are the advantages of using multiple water ring vacuum pumps at the same time?](https://www.dvevacuum.com/news/industry-news/what-are-the-advantages-of-using-multiple-water-ring-vacuum-pumps-at-the-same-time.html):(1) The water ring vacuum pump itself has a simple structure, low manufacturing requirements, no suction and exhaust valves, stable operation and uniform air vo...
- [Why is the vacuum degree of the rotary vane vacuum pump reduced?](https://www.dvevacuum.com/news/industry-news/why-is-the-vacuum-degree-of-the-rotary-vane-vacuum-pump-reduced.html):The rotary vane pump always fails to reach the vacuum degree, or leaks and injects oil, which brings a lot of unnecessary trouble to the production. So, what is...
- [What are the applications of vacuum pump station in vacuum drainage system?](https://www.dvevacuum.com/news/industry-news/what-are-the-applications-of-vacuum-pump-station-in-vacuum-drainage-system.html):The vacuum pump station is mainly composed of vacuum collection tank, vacuum pump, sewage pump and automatic control device.The vacuum collection tank is used t...
- [What is the cavitation phenomenon of water ring vacuum pump and how to avoid it?](https://www.dvevacuum.com/news/industry-news/what-is-the-cavitation-phenomenon-of-water-ring-vacuum-pump-and-how-to-avoid-it.html):After one to two years of use, it will be found that the vacuum degree of the water ring vacuum pump does not meet the required requirements. There are many rea...
- [What are the advantages of water ring vacuum pump as a seawater desalination system?](https://www.dvevacuum.com/news/industry-news/what-are-the-advantages-of-water-ring-vacuum-pump-as-a-seawater-desalination-system.html):Everyone is paying attention to low-carbon life, and the best and most cost-effective low-carbon life is to use existing natural resources for integrated utiliz...
- [What is the reason for the abnormal noise when the water ring vacuum pump is running?](https://www.dvevacuum.com/news/industry-news/what-is-the-reason-for-the-abnormal-noise-when-the-water-ring-vacuum-pump-is-running.html):Reasons for the abnormal noise of the water ring vacuum pump:(1) The anchor bolts are loose.(2) The installation is not accurate.(3) The rotor is not dynamicall...
- [What are the methods for eliminating cavitation in liquid ring vacuum pumps?](https://www.dvevacuum.com/news/industry-news/what-are-the-methods-for-eliminating-cavitation-in-liquid-ring-vacuum-pumps.html):If the liquid ring vacuum pump works for a long time in the state of cavitation, the noise and vibration of the pump will become larger, and even cause damage t...
- [What are the requirements of vacuum pump for lubricating oil?](https://www.dvevacuum.com/news/industry-news/what-are-the-requirements-of-vacuum-pump-for-lubricating-oil.html):In fact, there are various factors that affect the vacuum degree of the vacuum pump, such as the sealing method, the gap of the accessories, the quality of the ...
- [What are the causes and solutions for the vibration of the water ring vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-are-the-causes-and-solutions-for-the-vibration-of-the-water-ring-vacuum-pump.html):(1) The outlet pressure value of the water ring vacuum pump is normal, stable, without fluctuation, and there is no evacuation phenomenon, indicating that the o...
- [Under what conditions should the vacuum pump be best used?](https://www.dvevacuum.com/news/industry-news/under-what-conditions-should-the-vacuum-pump-be-best-used.html):(1) The choice of vacuum pump should be selected according to the specific process of the user, such as whether the degree of vacuum, the size of the pumping ra...
- [What are the common faults and solutions of vacuum pump units?](https://www.dvevacuum.com/news/industry-news/what-are-the-common-faults-and-solutions-of-vacuum-pump-units.html):Similar anomalies have occurred many times during the periodical switching of the vacuum pump. After the standby vacuum pump is started and the original running...
- [What is the discharge pressure of the vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-discharge-pressure-of-the-vacuum-pump.html):When the vacuum pump is working, it will continuously discharge air from the pump body to form the vacuum degree required by the work at the suction port, that ...
- [What are the advantages of liquid ring vacuum pump in ketene production?](https://www.dvevacuum.com/news/industry-news/what-are-the-advantages-of-liquid-ring-vacuum-pump-in-ketene-production.html):The liquid ring vacuum pump for ketene production applications has at least the following advantages:First, the liquid ring pump can run continuously for a long...
- [What are the characteristics of water ring vacuum pumps in paper mills?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-of-water-ring-vacuum-pumps-in-paper-mills.html):The water ring vacuum pump uses water as the medium to complete the energy conversion. Water is both the working fluid and the sealing fluid. During the working...
- [How to choose a vacuum pump in a vacuum system?](https://www.dvevacuum.com/news/industry-news/how-to-choose-a-vacuum-pump-in-a-vacuum-system.html):In the design and calculation of the vacuum system, the vacuum pump that directly evacuates the vacuum container is called the main pump, and the vacuum pump th...
- [How to obtain and classify the vacuum of mechanical vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-obtain-and-classify-the-vacuum-of-mechanical-vacuum-pump.html):At present, the pressure range involved in vacuum technology is 105Pa~10-13Pa. Such a wide pressure range cannot be achieved by any kind of vacuum equipment—vac...
- [What is a rotary vane vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-a-rotary-vane-vacuum-pump.html):Rotary vane vacuum pump is an oil-sealed rotary air extractor, also known as Gade pump, which is mainly composed of stator, rotor and sliding vane. The rotor is...
- [What are the characteristics of reciprocating vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-of-reciprocating-vacuum-pump.html):What is a reciprocating vacuum pump? Its principle is the same as the needle tube used in the hospital. The black thing inside is the piston, which moves back a...
- [What is the method of vacuum leak detection and elimination of air leaks?](https://www.dvevacuum.com/news/industry-news/what-is-the-method-of-vacuum-leak-detection-and-elimination-of-air-leaks.html):There will be more or less air leakage in any vacuum system, which is inseparable from the user's process environment. The higher the vacuum environment, the gr...
- [The specific application of vacuum valve and the design principles that should be followed](https://www.dvevacuum.com/news/industry-news/the-specific-application-of-vacuum-valve-and-the-design-principles-that-should-be-followed.html):As the name suggests, a vacuum valve is a valve installed on a vacuum pump or vacuum unit. Valves generally used in vacuum pumps include electromagnetic vacuum ...
- [What aspects must be paid attention to when using a vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-aspects-must-be-paid-attention-to-when-using-a-vacuum-pump.html):In the process of using the vacuum pump, we need to pay attention to many aspects. If it is used improperly, it will have a great impact on the entire vacuum sy...
- [How many types of vacuum pumps are there?](https://www.dvevacuum.com/news/industry-news/how-many-types-of-vacuum-pumps-are-there.html):Laboratories often use vacuum pumps to create a vacuum. Since the pressure span from rough vacuum to extremely high vacuum is as high as more than ten orders of...
- [What are the precautions for the use of rotary vane vacuum pumps?](https://www.dvevacuum.com/news/industry-news/what-are-the-precautions-for-the-use-of-rotary-vane-vacuum-pumps.html):(1) Before using the rotary vane vacuum pump, add the vacuum pump oil according to the oil mark indication scale. Rotate the three-way valve to make the suction...
- [How many classifications are there for the pumping rate of a vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-many-classifications-are-there-for-the-pumping-rate-of-a-vacuum-pump.html):The pumping rate of the vacuum pump refers to the volume of gas discharged per unit time. The common unit is liters second (L S)1. Nominal pumping speedThe nomi...
- [What are the properties and applications of reciprocating vacuum pumps?](https://www.dvevacuum.com/news/industry-news/what-are-the-properties-and-applications-of-reciprocating-vacuum-pumps.html):1. The discharged liquid can reach any required height and any pressure without limitation. From the analysis of the pump's discharge stroke, as long as the pis...
- [How to choose a pump for a vacuum system?](https://www.dvevacuum.com/news/industry-news/how-to-choose-a-pump-for-a-vacuum-system.html):When considering what kind of vacuum pump to use in a vacuum system, first of all, it should be based on the requirements of the system, and secondly, it should...
- [What types of water ring vacuum pumps are there?](https://www.dvevacuum.com/news/industry-news/what-types-of-water-ring-vacuum-pumps-are-there.html):The characteristics of the water ring pump are simple and compact structure; the rotor can be directly connected with the motor. No speed change device is requi...
- [What are the characteristics and types of vacuum valves?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-and-types-of-vacuum-valves.html):The basic characteristics of the vacuum valve are that it has high air tightness (reliable sealing); the resistance to the airflow is as small as possible (that...
- [The temperature rise and outlet pressure of Roots vacuum pumps](https://www.dvevacuum.com/news/industry-news/the-temperature-rise-and-outlet-pressure-of-roots-vacuum-pumps.html):The temperature rise of the Roots vacuum pump refers to the difference between the highest temperature measured on the surface of the entire pump and the room t...
- [Use and maintenance of reciprocating vacuum compressors](https://www.dvevacuum.com/news/industry-news/use-and-maintenance-of-reciprocating-vacuum-compressors.html):Use of reciprocating vacuum pump(1) Before driving, ensure that electrical switches, interlocks, indicating instruments, valves, control and safety accessories ...
- [How does liquid ring vacuum pump cavitation occur?](https://www.dvevacuum.com/news/industry-news/how-does-liquid-ring-vacuum-pump-cavitation-occur.html):When the liquid ring vacuum pump is working, at a certain temperature, when the liquid pressure at the low pressure is lower than the vaporization pressure (tha...
- [What is the development trend of water ring vacuum pump in the future?](https://www.dvevacuum.com/news/industry-news/what-is-the-development-trend-of-water-ring-vacuum-pump-in-the-future.html):The water ring vacuum pump is a kind of vacuum pump with a relatively simple structure. It uses water as the working fluid to achieve the function of sealing an...
- [What are the applications of condensers in vacuum systems?](https://www.dvevacuum.com/news/industry-news/what-are-the-applications-of-condensers-in-vacuum-systems.html):The main function of the condenser in the vacuum system is to condense the vapor part of the mixed gas above 100 °C from the vacuum tank into a liquid below 25 ...
- [What are the classifications of vacuum units?](https://www.dvevacuum.com/news/industry-news/what-are-the-classifications-of-vacuum-units.html):The vacuum unit is composed of various vacuum components, and it is an exhaust system without a vacuum chamber. The vacuum units are named after the main pump. ...
- [What are the main uses of water jet pumps?](https://www.dvevacuum.com/news/industry-news/what-are-the-main-uses-of-water-jet-pumps.html):The main purpose of the water jet pump①It is used in vacuum distillation, concentration, dehydration, decolorization, drying, crystallization, filtration, degas...
- [How to make reasonable use of waste vacuum pump oil?](https://www.dvevacuum.com/news/industry-news/how-to-make-reasonable-use-of-waste-vacuum-pump-oil.html):1. The method of treating waste oil of vacuum pump with activated clayAfter the vacuum pump is stopped, the waste oil can be discharged into the waste oil tank....
- [What are the classifications of vacuum pumps and how are their performances?](https://www.dvevacuum.com/news/industry-news/what-are-the-classifications-of-vacuum-pumps-and-how-are-their-performances.html):In order to obtain high vacuum, ultra-high vacuum and extremely high vacuum, multiple vacuum pumps are connected in series to form a unit to complete the pumpin...
- [What is the principle and application scope of the reciprocating vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-principle-and-application-scope-of-the-reciprocating-vacuum-pump.html):The structure and principle of the reciprocating vacuum pump are basically the same as those of the reciprocating compressor, but the valve used is required to ...
- [What kinds of vacuum pumps are commonly used in the chemical production process?](https://www.dvevacuum.com/news/industry-news/what-kinds-of-vacuum-pumps-are-commonly-used-in-the-chemical-production-process.html):Some processes in chemical production often need to be carried out under the condition of sub-atmospheric pressure. A vacuum pump is a mechanical device that ob...
- [How is the vacuum pump used in the chemical industry?](https://www.dvevacuum.com/news/industry-news/how-is-the-vacuum-pump-used-in-the-chemical-industry.html):In petroleum and chemical production, certain production processes are often carried out at sub-atmospheric pressure. Any pressure lower than atmospheric pressu...
- [What are the characteristics of water ring vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-of-water-ring-vacuum-pump.html):The water ring vacuum pump can transport both gas and liquid. It's just less efficient when pumping liquids. When transporting gas, it can also be used as a low...
- [Application of vacuum pump in natural gas processing technology](https://www.dvevacuum.com/news/industry-news/application-of-vacuum-pump-in-natural-gas-processing-technology.html):Too often, some processes in natural gas production require sub-atmospheric pressure. The so-called vacuum pump is a general term for a type of mechanical equip...
- [Application and main classification of vacuum pump in chemical factory](https://www.dvevacuum.com/news/industry-news/application-and-main-classification-of-vacuum-pump-in-chemical-factory.html):Any pressure below atmospheric pressure is called a vacuum. The degree of vacuum is the degree of lower than atmospheric pressure, generally expressed as a perc...
- [What is the structure and working principle of vacuum pumps in the automotive industry?](https://www.dvevacuum.com/news/industry-news/what-is-the-structure-and-working-principle-of-vacuum-pumps-in-the-automotive-industry.html):The vacuum pump is mostly the power source of the hydraulic brake booster of diesel vehicles, which is usually driven by the generator coaxially and rotates in ...
- [What is the application of Roots pump in vacuum electron beam welding machine?](https://www.dvevacuum.com/news/industry-news/what-is-the-application-of-roots-pump-in-vacuum-electron-beam-welding-machine.html):In the vacuum electron beam welding machine, the vacuum system also often uses a Roots pump as a booster pump for differential pumping. Roots pump is a double-r...
- [What is the important role of the rotary vane in the pumping process of the mechanical vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-important-role-of-the-rotary-vane-in-the-pumping-process-of-the-mechanical-vacuum-pump.html):The gas is sucked in from the air inlet, and the sucked gas is compressed and discharged out of the pump. Realize that the pumped gas is transported from the pu...
- [What are the reasons for the vacuum pump not pumping water?](https://www.dvevacuum.com/news/industry-news/what-are-the-reasons-for-the-vacuum-pump-not-pumping-water.html):When the vacuum pump is used as a vacuum pump for water diversion, the water cannot be pumped due to improper operation. What is the reason why the vacuum pump ...
- [Working principle and precautions of rotary vane mechanical vacuum pump](https://www.dvevacuum.com/news/industry-news/working-principle-and-precautions-of-rotary-vane-mechanical-vacuum-pump.html):A vacuum pump is a special device used to extract gas in a closed system to obtain a vacuum. At present, rotary vane vacuum pumps are commonly used in refrigera...
- [What are the applications of the reciprocating vacuum pump principle?](https://www.dvevacuum.com/news/industry-news/what-are-the-applications-of-the-reciprocating-vacuum-pump-principle.html):The reciprocating vacuum pump uses the back and forth movement of the piston to transmit energy to the liquid to complete the liquid transport mission. The flow...
- [Maintenance Problems of Roots Vacuum Pump in Application](https://www.dvevacuum.com/news/industry-news/maintenance-problems-of-roots-vacuum-pump-in-application.html):In view of the fact that the Roots vacuum pump is a variable-capacity vacuum pump, the structure is simple, the reserve capacity is large, and it is very easy t...
- [The role of roots vacuum pump in transportation and storage](https://www.dvevacuum.com/news/industry-news/the-role-of-roots-vacuum-pump-in-transportation-and-storage.html):The role of roots vacuum pump in transportation and storage(1) Temperature crude oil The crude oil extracted from the oil layer is always accompanied by varying...
- [Application of Roots Vacuum Pump in Refinement of Petroleum Products](https://www.dvevacuum.com/news/industry-news/application-of-roots-vacuum-pump-in-refinement-of-petroleum-products.html):Application of Roots Vacuum Pump in Refinement of Petroleum Products(1) Dry gas oil If the gas oil product contains a very small amount of water, the color will...
- [Roots vacuum pump in medical vacuum refrigeration application](https://www.dvevacuum.com/news/industry-news/roots-vacuum-pump-in-medical-vacuum-refrigeration-application.html):Vacuum freeze-drying is a better method for dehydration of materials at present. It can freeze the freeze-dried material in advance, and then sublime the water ...
- [Physical phenomenon of exhaust in vacuum system and its causes](https://www.dvevacuum.com/news/industry-news/physical-phenomenon-of-exhaust-in-vacuum-system-and-its-causes.html):Physical phenomenon of exhaust in vacuum system and its causesBefore the mechanical pump starts to work, the pressure of each part of the system is the same. Th...
- [How to install and use the rotary oil pump?](https://www.dvevacuum.com/news/industry-news/how-to-install-and-use-the-rotary-oil-pump.html):Installation and use of rotary oil pumpCertain rules must be followed when installing rotary pumps: pumps with small displacement (moving vane type and stationa...
- [How to solve the oil leakage of vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-solve-the-oil-leakage-of-vacuum-pump.html):This fault is easy to see from the outside. Oil leakage should also be identified with fuel injection. These should be taken measures to prevent. It is not good...
- [The influence of position and size of inlet and outlet of rotary vane vacuum pump on noise](https://www.dvevacuum.com/news/industry-news/the-influence-of-position-and-size-of-inlet-and-outlet-of-rotary-vane-vacuum-pump-on-noise.html):The closer the exhaust port is to the upper cut point, the quieter the noise. But if it is too close, it will affect the performance of the rotary vane pump. Th...
- [What is the ultimate vacuum degree of Roots vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-is-the-ultimate-vacuum-degree-of-roots-vacuum-pump.html):Ultimate vacuum is one of the important parameters of Roots vacuum pump. Because it is commonly expressed as pressure, it is also called ultimate pressure. It c...
- [The main advantages and disadvantages of water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/the-main-advantages-and-disadvantages-of-water-ring-vacuum-pump.html):Advantages of water ring vacuum pump:1) The structure is simple, the manufacturing requirements are not high, there is no need for suction and exhaust valves, a...
- [Reasons for the reduction of the air volume of the water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/reasons-for-the-reduction-of-the-air-volume-of-the-water-ring-vacuum-pump.html):There are many reasons for the reduction of the air volume of the water ring vacuum pump. The common ones are: not reaching the rated speed (for example, when u...
- [The main types of impeller damage of water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/the-main-types-of-impeller-damage-of-water-ring-vacuum-pump.html):The types of blade damage of water ring vacuum pump are mainly broken blade, blade crack, blade corrosion or cavitation.1. Leaf breakMainly due to solids stuck ...
- [Reasons and Repairs for Shaft Damage of Water Ring Vacuum Pump](https://www.dvevacuum.com/news/industry-news/reasons-and-repairs-for-shaft-damage-of-water-ring-vacuum-pump.html):In the damage of the parts of the single-acting water ring vacuum pump, the damage of the shaft occupies a large proportion. Damage to the pump shaft includes b...
- [Damage and Repair Method of Cracks in Iron Castings of Water Ring Vacuum Pump](https://www.dvevacuum.com/news/industry-news/damage-and-repair-method-of-cracks-in-iron-castings-of-water-ring-vacuum-pump.html):The mechanical properties of the cast iron parts of the water ring vacuum pump are relatively poor, and cracks are prone to occur due to impact, uneven force or...
- [Assembly of Rolling Bearings and Couplings of Water Ring Vacuum Pumps](https://www.dvevacuum.com/news/industry-news/assembly-of-rolling-bearings-and-couplings-of-water-ring-vacuum-pumps.html):1. Assembly method of rolling bearingThe assembly of the rolling bearing of the water ring vacuum pump depends on the interference of the rolling bearing and th...
- [Improvement Trend of Rotary Vane Vacuum Pump](https://www.dvevacuum.com/news/industry-news/improvement-trend-of-rotary-vane-vacuum-pump.html):Although the rotary vane vacuum pump has many advantages compared with other types of mechanical pumps, there are also many disadvantages, especially it is stil...
- [Influence of Clearance on Performance of Water Ring Vacuum Pump](https://www.dvevacuum.com/news/industry-news/influence-of-clearance-on-performance-of-water-ring-vacuum-pump.html):The gap size of the water ring vacuum pump has a significant impact on the performance. The essence of this effect is the effect of gas leakage on pump performa...
- [The main factors affecting the performance of the Roots pump](https://www.dvevacuum.com/news/industry-news/the-main-factors-affecting-the-performance-of-the-roots-pump.html):1. The key part of the Roots pump is the rotor, and the key of the rotor is its profile. The outer surface line of the rotor cross section is the profile line o...
- [The effect of vacuum pump in different applications](https://www.dvevacuum.com/news/industry-news/the-effect-of-vacuum-pump-in-different-applications.html):Because the functions of various vacuum pumps are different except that they can meet the matching points for vacuuming the container. Therefore, when choosing,...
- [Use of rotary vane vacuum pump](https://www.dvevacuum.com/news/industry-news/use-of-rotary-vane-vacuum-pump.html):Rotary vane vacuum pump is not suitable for pumping out gas with high oxygen content, explosiveness, corrosiveness and dust. If it must work in this situation, ...
- [What are the characteristics of the Roots pump?](https://www.dvevacuum.com/news/industry-news/what-are-the-characteristics-of-the-roots-pump.html):Positive exhaust blowers can be used in tandem with rotary vane pumps to obtain higher pumping speeds and lower ultimate pressures at moderate vacuum than when ...
- [Matters needing attention when choosing the correct vacuum pump](https://www.dvevacuum.com/news/industry-news/matters-needing-attention-when-choosing-the-correct-vacuum-pump.html):1. The working pressure of the vacuum pump should meet the ultimate vacuum and working pressure requirements of the vacuum equipment. For example, a vacuum dryi...
- [Precautions for choosing a water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/precautions-for-choosing-a-water-ring-vacuum-pump.html):First, the determination of the type of water ring vacuum pumpThe type of water ring vacuum pump is mainly determined by the pumped medium, the air volume requi...
- [How to deal with vacuum system pollution?](https://www.dvevacuum.com/news/industry-news/how-to-deal-with-vacuum-system-pollution.html):Low vacuum devices such as vacuum conveying, vacuum impregnation, vacuum filtration, vacuum monotony, vacuum degassing (disposal of molten steel), etc. require ...
- [Ultimate pressure of rotary vane pump](https://www.dvevacuum.com/news/industry-news/ultimate-pressure-of-rotary-vane-pump.html):Shortly after the pump starts working, the lowest pressure P'g occurs. The pump continues to run, and due to the increase of pump temperature, the saturated vap...
- [The relationship between Roots pump and backing pump pumping speed](https://www.dvevacuum.com/news/industry-news/the-relationship-between-roots-pump-and-backing-pump-pumping-speed.html):The relationship between the pumping speed of the Roots pump and the pumping speed of the backing pump mainly depends on the volumetric efficiency and the press...
- [Heater and heating power of oil diffusion pump](https://www.dvevacuum.com/news/industry-news/heater-and-heating-power-of-oil-diffusion-pump.html):Compared with the diffusion jet pump, the pumping capacity and the maximum outlet pressure of the oil diffusion pump are much lower, so the heating power of the...
- [Working principle and structural characteristics of Roots pump](https://www.dvevacuum.com/news/industry-news/working-principle-and-structural-characteristics-of-roots-pump.html):The Roots pump is a positive displacement vacuum pump with two rotors. There are two symmetrically shaped rotors in the pump chamber, and the rotor shapes inclu...
- [Application range of reciprocating vacuum pump](https://www.dvevacuum.com/news/industry-news/application-range-of-reciprocating-vacuum-pump.html):The ultimate vacuum of the reciprocating vacuum pump (also known as the piston vacuum pump), the single stage is 4 X 102Pa--103Pa, the double stage can reach 1P...
- [Vacuum pump oil milk ring problem](https://www.dvevacuum.com/news/industry-news/vacuum-pump-oil-milk-ring-problem.html):Oil and water in a vacuum pump are two immiscible liquids, but under certain conditions, a stable or unstable emulsion will be formed. In contact with water, wh...
- [How to repair the rotary vane vacuum pump?](https://www.dvevacuum.com/news/industry-news/how-to-repair-the-rotary-vane-vacuum-pump.html):Maintenance of rotary vane vacuum pumpl. First of all, we must understand the type, characteristics and current situation of the pump. Understand the applicatio...
- [Correct application of rotary vane vacuum pump](https://www.dvevacuum.com/news/industry-news/correct-application-of-rotary-vane-vacuum-pump.html):Correct application of rotary vane vacuum pumpBefore using, you should read the product manual carefully first, and check the shipping quality after unpacking. ...
- [What causes the possible problems of the rotary vane vacuum pump?](https://www.dvevacuum.com/news/industry-news/what-causes-the-possible-problems-of-the-rotary-vane-vacuum-pump.html):Possible problems with rotary vane vacuum pumps:1. The pump does not turn. If the situation is unknown, the pump cannot be turned on first, so as not to aggrava...
- [Operation and maintenance of water ring vacuum pump](https://www.dvevacuum.com/news/industry-news/operation-and-maintenance-of-water-ring-vacuum-pump.html):Operation and maintenance of water ring vacuum pump1. Pump device:When installing the vacuum pump and compressor, the installation surface must be horizontal, a...
- [Overview and working principle of water ring-atmospheric jet vacuum pump set](https://www.dvevacuum.com/news/industry-news/overview-and-working-principle-of-water-ringatmospheric-jet-vacuum-pump-set.html):(1) OverviewThe water ring-atmospheric jet vacuum pump set is a vacuum pump set composed of a water ring pump and an atmospheric jet pump. It can extract air an...
- [Misunderstandings that need attention in the use of Roots pumps](https://www.dvevacuum.com/news/industry-news/misunderstandings-that-need-attention-in-the-use-of-roots-pumps.html):1. The Roots vacuum pump must be equipped with a backing pump, and the Roots pump cannot be used alone.2. The Roots pump is mostly used in the Roots vacuum unit...
- [Determination of the type of water ring pump and rotary vane pump](https://www.dvevacuum.com/news/industry-news/determination-of-the-type-of-water-ring-pump-and-rotary-vane-pump.html):1. The determination of the model of the water ring vacuum pump (referred to as the water ring pump) is determined according to the different process requiremen...
- [Practical Application of Vacuum Pump in Vacuum Drying](https://www.dvevacuum.com/news/industry-news/practical-application-of-vacuum-pump-in-vacuum-drying.html):Vacuum pumps are widely used in the vacuum drying process. The so-called vacuum drying is a method of placing materials under negative pressure conditions, and ...
- [Maintenance and maintenance of mechanical vacuum pumps](https://www.dvevacuum.com/news/industry-news/maintenance-and-maintenance-of-mechanical-vacuum-pumps.html):1. The pump and its surrounding environment should be kept clean frequently.2. During the operation of the pump, the oil volume in the oil tank should not be lo...
- [What are the advantages of Oil diffusion ejector vacuum pumps?](https://www.dvevacuum.com/news/industry-news/what-are-the-advantages-of-oil-diffusion-ejector-vacuum-pumps.html):Oil diffusion ejector vacuum pumps, also known as oil-sealed rotary vane pumps, are a type of vacuum pump that use an oil-sealed rotor to compress and pump gase...

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