EVP New Vacuum System JZJX Roots-Rotary Pump System

Posted on Tue, 22 May 2018 09:53:41 +0000

Introduction: JZJX series roots-rotary pump system contains ZJ series roots pump as main pump and single or double stage rotary vane pump as fore pump. It is an ideal machine to achieve for low or high vacuum degree. Besides, the whole system will match the connecting pipe, valve, electric cabine...

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The removal of vacuum pump and installation sequence

Posted on Tue, 22 May 2018 09:51:23 +0000

1. Open cylinder and installation (1) Before dismantling the cylinder. Discharge oil from the vacuum pump (including liquid ring pump, rotary vane pump , rotary piston pump ,oil diffusion pump, dry scroll pump and so on ) Manually rotate the fan belt, discharge may have been gathered in the vacuu...

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How to deal with common vacuum pump failure

Posted on Tue, 22 May 2018 09:48:03 +0000

Generally,the following major common problems will occurs while in vauum pump using: 1. vacuum pressure decreased; 2. high noise; 3.pump oil injecting; 4.oil leakage; 5.massive smoke from pump oil; 6.vacuum pump , such as rotary vane vacuum pump , rotary piston vacuum pump , dry scroll vacuum pum...

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The function and principle of gas ballast valve

Posted on Tue, 22 May 2018 09:44:18 +0000

Due to contain a certain amount of water vapor in the atmosphere, so when the vacuum  pump working the suction air also contain some non-condensable gas and the mixture of permanent gas.This gas mixture is compressed within the pump exhaust process, if partial pressure of non-condensable gas pass...

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What is the working principle of dry running rotary vane vacuum pump

Posted on Tue, 22 May 2018 09:43:22 +0000

Oil free dry vacuum pump (also referred to as dry mechanical pump) refers to the pump can began under atmospheric pressure extraction, but also will be pumping gas directly into the atmosphere, the pump cavity without oil or other work medium, and the ultimate pressure of the pump and oil seal ty...

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The influence of the working efficiency of the vacuum pump

Posted on Tue, 22 May 2018 09:42:40 +0000

With the rapid development of economy in our country, the vacuum pump industry in our country have also maintained the momentum of rapid growth, and realize the steady and continuous development. In its rapid development at the same time, the vacuum pump companies and users are constantly explore...

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Water ring vacuum pump maintenance

Posted on Tue, 22 May 2018 09:41:45 +0000

1, To bearing the body on a regular basis to join bearing lubrication oil or butter. 2, When using the water ring vacuum pump, screw vacuum pump under the first diversion screw pump body, filling water diversion.Especially for mechanical seal water ring vacuum pump (2 bv, 2 be) to start the motor...

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The common terms of vacuum industry

Posted on Tue, 22 May 2018 09:40:58 +0000

1, What is vacuum? Vacuum system refers to the below atmospheric pressure thin gas state, the region is not an absolute vacuum. 2, What is vacuum?Under vacuum gas rare book degree, usually with “high vacuum degree” and “low vacuum”.High Vacuum degree means vacuum degree...

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The mechanical working principle of vacuum pump

Posted on Tue, 22 May 2018 09:38:39 +0000

Water ring vacuum pump (also known as liquid ring vacuum pump).It is a kind of rough vacuum pump, it can get the limit of vacuum is 2000 ~ 4000 pa, Equiped with air ejector can reach 270 ~ 270.Liquid  ring vacuum pump can also be used for compressor, called water ring compressor, belongs to low p...

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Cavitation phenomenon of preventive measures and eliminating method

Posted on Tue, 22 May 2018 09:34:31 +0000

Liquid ring vacuum pump in cavitation condition working for long hours , will cause the bigger noise and vibration of the water ring pump, even cause damage to the vacuum pump, thus avoid liquid ring vacuum pump in the condition of cavitation, can through the following methods: 1, Lower the tempe...

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