The Requirements of Application Performance of the Vacuum System

Posted on Tue, 22 May 2018 06:15:56 +0000

As semiconductor manufacturing to flourish in our country, domestic and international semiconductor manufacturing companies have launched production line, increasing the domestic used in semiconductor manufacturing line for cleaning ultra-high vacuum system equipment requirements. The ultra-high ...

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High Vacuum Technology-Vacuum Regimes

Posted on Tue, 22 May 2018 06:09:16 +0000

High Vacuum Technology is the science of the removal of all (or nearly all) gases from a chamber, and the measurement and manipulation of the vacuum environment. The applications of vacuum technology are as broad as modern technology itself, ranging from holding workpieces (vacuum chucks) to Ther...

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BSV two stage rotary vane vacuum pump advantages

Posted on Fri, 18 May 2018 10:32:38 +0000

working principle Due to the eccentricity effect When rotor from 0°to  90°:V      —- Gas suction stage When rotor from 90°to 360 :V    —- Gas compression stage   BSV Series Features-Vanes The Vanes of BSV series vacuum pump adopt the imported special materials which have more ...

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Damper valve difference

Posted on Fri, 18 May 2018 10:25:49 +0000

Damper valve is necessary device on vacuum system, which is used to open or shut off the pipeline. It can protect the vacuum especially when vacuum system stopped suddenly by accident. EVP can provide two types of damper valve which has a below difference on operation method. if any question, pl...

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2BV5-111 closed-loop circulation vacuum unit

Posted on Fri, 18 May 2018 10:24:50 +0000

1. General Instruction Liquid ring vacuum pump unit as a single pump system to expand to lots of applications. Which have been widely used in the coal, pharmaceutical, chemical, power and other industries to provide customers with more humane services, easier operation, more timely monitoring. H...

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Diffusion pump Structure characteristics

Posted on Fri, 18 May 2018 10:22:55 +0000

The diffusion pump includes pump shell, pump core, evaporation boiler, heater, cooling water pipe and some other components etc. KT series pump shell is made to convex cavity shape between the first stage nozzle and the second stage nozzle, to increase the pumping speed. The pump shell is mainly...

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Water Cooling Baffles

Posted on Fri, 18 May 2018 10:21:13 +0000

Water cooling baffles are very importnat parts in Oil Diffusion Pumps that installed between the inlet of oil diffusion vacuum pump and the high vacuum valve. It is used for blocking the oil vapor and reducing the back-streaming rate and can help clean the vacuum room. The baffle in our company i...

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Nash Interchangeable Liquid Ring Vacuum Pump

Posted on Fri, 18 May 2018 10:18:40 +0000

EVP had successfully re-designed and developed interchangeable liquid ring vacuum pump with Nash pump (with same outside dimension and connecting struct but distinguished inside design), under the increasing clients’ request for broken Nash pump replacing (including 2BE1, 2BE3, SX, AT and  ...

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Range of Applications for Vacuum Engineering is Growing Constantly for vacuum pumps

Posted on Fri, 18 May 2018 10:09:00 +0000

Vacuums are used in industry and commerce for packaging, drying, suction and pick-and-place. Some process engineering operations are carried out in a vacuum because low pressure is an advantage on temperature-sensitive products. And in a vacuum column, it is even possible to split azeotropic mixe...

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The advantages and disadvantages of the roots vacuum pump

Posted on Fri, 18 May 2018 09:22:04 +0000

The roots vacuum pump features are: (1) the rotor and the roots vacuum pump body , there is a certain gap between rotor and rotor, no contact each other, don’t need lubricating oil. (2) the rotor with good geometrical symmetry, can improve the rotary speed, so that they can produce the comp...

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