What is the recommended cooling water temperature at the outlet of the diffusion pump? 50C?40C?

Posted on Fri, 31 Dec 2021 02:38:58 +0000

Diffusion pump pump as one of the most common high vacuum pump, its ultimate vacuum can up to 10-5Pa, but in actual use, we do not recommend using vacuum pump near ultimate vacuum for a long time, the most direct impact is that the pumping capacity will decrease dramatically, and long-term use at...

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What is the full circulation and partial circulation system of the working fluid for liquid ring vacuum pump ?

Posted on Wed, 29 Dec 2021 08:34:49 +0000

Full circulation is with a heat exchanger, and the circulating working fluid has been used repeatedly; Partial circulation means that part of the working fluid is drained then it will be supplemented accordingly; For example, one system requires the water circulation 2 m3/h, and the full circulat...

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What is the gland packing seal of the water ring vacuum pump?

Posted on Tue, 28 Dec 2021 06:06:37 +0000

As we all know, the main sealing methods of water ring vacuum pumps are gland packing seals and mechanical seals. This article mainly shares relevant knowledge of gland packing seals. The so-called packing seal is to fill the packing into the pump for sealing. It is a very common sealing method f...

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Restrictions when screw pumps handle dusty gases

Posted on Mon, 27 Dec 2021 02:14:47 +0000

In general, screw pumps are not suitable for pumping gases with particles, but it can pumping  with particles less than 0.15 mm in diameter after adding a filter in the exhaust port of piston vacuum pump, which must be replaced and cleaned regularly. When a screw pump is used with a Roots pump fo...

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The strainer or inlet screen for 2BE series single stage liquid ring vacuum pumps

Posted on Mon, 20 Dec 2021 08:47:25 +0000

The 2BE series water ring vacuum pumps produced by our company are generally equipped with air intake filters, which need to be informed in advance before placing an order. Take the 2BE1-252 water ring vacuum pump as an example. A customer once asked if the particle diameter reached 300 microns, ...

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Can the flange of the molecular pump be reduced?

Posted on Fri, 17 Dec 2021 03:18:31 +0000

The molecular pump has a default port size. For example, the flange size of FB-2000 (2000L/s) is 250. If the customer’s equipment only has a 200-diameter, what should we do? The interface of the EVP brand FB series molecular pump can be changed to a smaller size according to the customer...

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Using liquid ring vacuum pump working with air ejector pump can up to 3000Pa? 2000Pa?

Posted on Thu, 16 Dec 2021 07:44:49 +0000

Liquid ring vacuum pump as one of the most common rough vacuum pump, its ultimate vacuum is 3300 pa, but in actual use, we do not recommend using vacuum pump near limit vacuum for a long time, the most direct impact is that the pumping capacity will decrease dramatically, and long-term use at a p...

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2BE1 water ring pump model with partition

Posted on Mon, 13 Dec 2021 07:42:23 +0000

Our 2BE series water ring pumps can be produced with a bulkhead, for example 2BE1-606, 2BE1-356. The bulkhead comes in two forms, one with an internal bulkhead without flange and one with a flange on the outside of the pump body. We produce the version with internal spacer without flange. The 2BE...

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Using liquid ring vacuum pump working with roots pump can up to 2000Pa? 500Pa?

Posted on Fri, 03 Dec 2021 07:11:14 +0000

The ultimate vacuum of the liquid ring vacuum pump is 33mbar, but higher vacuum can be achieved with roots pumps. So, what will be the ultimate vacuum of the liquid ring pump with Roots pump? Different vacuum degree can be achieved by increasing or decreasing the number of Roots pumps. For exampl...

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What units does the vacuum gauge on the EVP show? Pa, mmhg, torr etc?

Posted on Wed, 01 Dec 2021 06:36:05 +0000

A vacuum gauge is an instrument that measures the degree of vacuum or air pressure.  It is widely used in scientific research and industrial production. Here is a brief introduction to the characteristics of Pirani vacuum gauges (resistance vacuum gauges) and Ionization vacuum gauges Pirani vacuu...

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