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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What is the seal of dry screw vacuum pump?

Posted on Tue, 30 Nov 2021 05:44:07 +0000

Dry screw vacuum pumps are widely used in chemical industries, so pump’s seal is very important. What is the seal of dry screw vacuum pump? And what are seals’ material? Please see below picture of dry screw vacuum pump’s seal for reference: The orange one is piston ring seals; The yellow one is ...

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What kind of vacuum pump does the municipal vacuum cleaner need?

Posted on Mon, 29 Nov 2021 07:51:52 +0000

In vacuum trucks such as fecal suction trucks, garbage trucks, and municipal vacuum trucks, the liquid ring pumps are generally not driven by electric motors, but driven by automobile engines, such as diesel engines , PTO driven. Generally speaking, PTO refers to power takeoff, which refers to po...

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2BE3 big capacity liquid ring pump can be driven by belt

Posted on Fri, 19 Nov 2021 08:52:19 +0000

As we all know, most of the 2BE3 series vacuum pumps require a reducer to be directly connected to the drive, especially for pumps above 2BE3-52-336rpm. In traditional designs, a reducer must be used for direct drive. However, the cost of most reducers is the cost of the motor is much higher than...

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Lining or coating special material for 2BE3 series liquid ring vacuum pump

Posted on Thu, 18 Nov 2021 07:58:06 +0000

The pump cover of the 2BE3 series liquid ring vacuum pump produced by EVP company can be lined, and the material is PP (see below picture), which can effectively deal with the problem of anti-corrosion. At present, the maximum model which we can do this kind of lining material is till to 2BE350, ...

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How to confirm the oil level of 2X-70A rotary vane vacuum pump

Posted on Fri, 12 Nov 2021 05:45:25 +0000

Question: What is the oil level of 2X-70A? Is this red dot the highest oil level or the lowest oil level? Answer: The red dot is the center oil level. The oil level runs under vacuum for 5 minutes, reaching the red point or exceeding the red point by 3-6 mm Can’t be lower than the red point...

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