Mechanical vacuum pumps Choose according to their works and structural characteristic

Posted on Fri, 18 May 2018 10:03:16 +0000

Vacuum pumps are used in various methods to produce a closed space , which means to improve and maintain the vacuum . Vacuum pumps can be defined as the device or equipment , By use of mechanical, physical , chemical or physical chemistry methods have been drawn container extraction to obtain a v...

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Nine matters needing attention When choosing a vacuum pump

Posted on Fri, 18 May 2018 09:48:41 +0000

1, Vacuum pump work pressure should satisfy the requirement of the vacuum equipment ultimate vacuum and work pressure.Such as: vacuum coating require for 1 x 10-5 MMHG vacuum degree and choose the vacuum degree of vacuum pump must be at least 5 x 10-6 MMHG.Usually choose the vacuum degree of the ...

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EVP double stage rotary vane vacuum pump operating instructions

Posted on Fri, 18 May 2018 09:38:18 +0000

1. Check the oil level, when the vacuum pump stop , It is advisable to note oil to oil the center.Too low, the exhaust valve cannot seal effect, influence the degree of vacuum.Too high, may cause the atmosphere when starting injection.Operation, the oil level was increased, belongs to the normal ...

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How to select Vacuum pump

Posted on Fri, 18 May 2018 09:27:47 +0000

1, The ultimate pressure of the vacuum pump should meet the process of work pressure.Choose the ultimate pressure of the vacuum pump is lower than the process requirements about an order of magnitude. 2, Each vacuum pump has a certain work pressure scope , therefore, the working point of the vacu...

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How to use vacuum pump oil

Posted on Fri, 18 May 2018 09:25:33 +0000

(1) the window of the filling must be clean, it is strictly prohibited in the sunlight and in the open air, and to be stored in a dark, dry and ventilated places, being mixed with water and dust. (2) prevent sundries mixed with oil, the wear of the pump. (3) different grades and different types o...

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My company’s production of rotary vane vacuum pump effectively prevent oil return to happen

Posted on Fri, 18 May 2018 09:15:35 +0000

When stop rotary vane vacuum pumps, oil hole and pump chamber are inter linked or surface of exhaust valve, shaft seal, pump cover, air inlet pipe, air valve, such as untight seal, as a result of the existence of liquid level difference and gravity are in a vacuum tank and pump cavity and differe...

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Water pump maintenance

Posted on Fri, 18 May 2018 08:41:34 +0000

Firstly, The power supply should be inspected: the connection whether firm; the switch contact whether dense; the fuse whether blown; the three-phase power supply whether equal or not. If there is a broken circuit, poor contact, blown fuse, or lack of phase, the cause should be ascertained and re...

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Damage Analysis Factors of Dry Screw Vacuum Pumps

Posted on Fri, 18 May 2018 08:26:41 +0000

I.Analysis on Corrosive rotor surface Vacuum pump feed medium containing sulfur dioxide, water, sulfur dioxide combined with water to generate sulfurous acid, sulfurous acid on the metal corrosive effect, in order to prevent rotor, pump chamber corrosion, the surface of the rotor and pump Teflon ...

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Obtain Ultra-high vacuum method by oil diffusion pump

Posted on Fri, 18 May 2018 08:24:52 +0000

Oil diffusion pump is often used in high-vacuum pumping system by  taking some technical measures, you can get ultra-high vacuum and  the method is: 1. choose a good performance diffusion pump oil Pump oil has a great influence on the ultimate pressure of the oil diffusion pump. Such as the use o...

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Single-end mechanical seal flushing program

Posted on Fri, 18 May 2018 08:22:50 +0000

PLAN 01 (Single-sided self-rinse) Description: The internal circulation from the outlet of the pump to the seal. Its operation similar to PLAN11. Reason: sealed chamber cooling; sealed chamber exhaust. Application: Single-end seals more be used for clean the transported fluid of viscous and easy ...

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