Rotary vane vacuum pump with low operating temperature congratulation EVP engineer team! EVP SV020 rotary vane vacuum pump’s temperature has been lowered by 10~20℃ through technical improvement. according to test, SV020’s max. temperature is only  75~85℃ after continuously running 4 h...

ZJ&ZJP&ZJL&ZJQ Roots vacuum pump Pumping principal:effect through two”8” shaped rotors in opposite direction to reach suction and exhaust. ZJ&ZJP: ZJ series roots pump without bypass valve but ZJP with bypass valves(Bypass valve: recerse and auto avoid overload. ZJL: pumping speed...

Compared to one stage liquid ring vacuum pump, DLV series two stages liquid ring vacuum pump is with better performance and good vacuum. In the future, two stages lqiudi ring vacuum pump will be the mainsteam of market.   DLV series two stages water ring vacuum pump is our new design based o...

Liquid ring vacuum pump normally has two kinds of sealing means: gland packing, mechanical seal.   Gland packing is an ideal choice to pump air (nontoxic), for its cost-efficiency, easy to maintain or repair, and posseses a simple structure. Becuase its sealing performance is not very ideal,...

importance of using standard vacuum pump oil 1) Vacuum pump special oil has a certain viscosity The viscosity of oil determines its sealing performance. Watery oil would result to bad sealing performance; while if oil with high viscosity, it would increase friction between pump blade and cylinder...

Liquid ring vacuum pumps require proper operation and monitoring, however. This article will address several monitoring and troubleshooting situations involving liquid ring vacuum pumps. A check valve will prevent a backflow of gases at start-up or shutdown of the system. When choosing a check va...

• oil-lubricated rotary vane vacuum pump Oil-lubricated rotary vane vacuum pump is widely used in the cleaning system. Experience has shown that this type of pump is well suited for such applications, it also became the drying process of cleaning system standard pump. Rotary vane vacuum pumps are...

As we know Nash rring vacuum pump(water ring vacuum pump) is widely used in the world. In order to offer customer top quality liquid ring vacuum pump and save customer’s cost, so we develop our model 2BE1&2BE3 and CL liquid ring vacuum pump& compressor. 1.100% same performance and d...

Because the rotary vacuum filter during its operation will carries out moisture, the wet type vacuum pump will always be chosen and the dry type vacuum pumps are not the ideal in this application.During a process upset, such as failure of the filtrate pump, slugs of liquid can carry over into the...

If working medium contains water vapor, rotary vane pump can be selected irrespective water ring pump or vacuum unit, but a condensator is required at the inlet of the rotary vane pump so that the vapor is liquefied before entering the pump chamber. Since the condesator can not liquefy all vapor,...