EVP LG vacuum pump of better realizing the function

The following Q&A will help you better understanding each port’s function of our EVP LG vacuum pump. Let us see it!

1.Do you provide the steel frame (#1 on photo) with the pump in stock?

We have pump in stock in standard station, if sold out, the lead time is 25 days.

Steel frame is our standard supply also.

2.Do you provide exhaust condensate collection tank (#2) in stock?

This is silencer which is in our standard supply also.

3.What is the purpose of this port? Why temperature sensor needed? Do we need temperature sensor?

Mark 3 and Mark 10 are the same thing, it is the inlet of cooling water. It is equipped with water flow switch, which is mainly used to water-break alarm, including the selection of cooling water temperature sensor which is decided according to working conditions or user requirements.

4.What is the purpose of this port? What we can see under this plug?

This is the process hole of the casting process and has nothing to do with its subsequent use.

5.What is the purpose of this port? What we can see under this plug?

Mark 5 and Mark 13 are the same thing, it is the outlet of the cooling water jacket. Its main function is to empty the water in the jacket in low temperature to prevent the freeze crack pump body

6.What is the purpose of this port?

Mark 6 and Mark 12 are the same thing-water drainage port, because the left and right holes are connected, only one drain ball valve is installed.

7.What is the purpose of this port? What we can see under this plug?

Mark 7 and Mark 11 are the same thing, this is the middle purge port of screw pump, which is generally not used.

8.What is the purpose of this port?

Cooling water outlet

9.Does this valve is used for cool gas purging? Is it OK to use air filter in our case?

This is the purge port of end of the screw pump, the pic 1 is automatic purging as required by the customer, in figure 2 Mark 11 on the left black one is the air filter purging, there is a manual ball valve in the middle, you can manually adjust the size of the air inlet and the size of air inflow, the purging port can be normally opened according to the vacuum requirement, impact on vacuum degree is small, the working process of the screw pump, the inhalant dust is easy to remain in the end, open the port and let appropriate air inflow come into is beneficial to clean the pump cavity.

10.What is the purpose of this port?

Mark 3 and Mark 10 are the same thing, it is the inlet of cooling water. It is equipped with water flow switch, which is mainly used to water-break alarm, including the selection of cooling water temperature sensor which is decided according to working conditions or user requirements.

11.What is the purpose of this port? What we can see under this plug?

Mark 7 and Mark 11 are the same thing, this is the middle purge port of screw pump, which is generally not used.

12.What is the purpose of this valve?

Mark 6 and Mark 12 are the same thing-water drainage port, because the left and right holes are connected, only one drain ball valve is installed.

13.What is the purpose of this port? What we can see under this plug?

Mark 5 and Mark 13 are the same thing, it is the outlet of the cooling water jacket. Its main function is to empty the water in the jacket in low temperature to prevent the freeze crack pump body.

14.Is it electronic vacuum gauge?

This is a vacuum pressure transmitter to control the working vacuum range of screw pump. It is generally used together with frequency converter and PLC module. Different selection, different prices.

That’s not in our scope of supply, should purchase additionally.