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...

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...

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...

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...

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...

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 ...

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...

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...

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, ...

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...