Vacuum pump and vacuum break valve
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Help: Is there a relationship between the size of a vacuum pump and the vacuum break valve? I want to add a vacuum-breaking valve at the outlet of the vacuum pump, with automatic control that allows the valve to be fully open or fully closed. How do I determine its size? Thank you to all the sea friends!
Is there a relationship between the size of a vacuum pump and the vacuum break valve? I want to add a vacuum-breaking valve at the outlet of the vacuum pump, with automatic control that allows the valve to be fully open or fully closed. How do I determine its size? Thank you to all the sea friends! What system are the pump and door mentioned in your request installed in? What does a vacuum-breaking valve mean? Is it a vacuum valve that’s damaged? Be sure to explain clearly when posting, otherwise replies cannot be given.
This post was last edited by ever2008 on 2012-1-17 at 10:36. Following the moderator’s suggestion, I’ll explain in detail; I hope some members can offer help: A vacuum pump is used to create a vacuum in a certain device. Even after the device stops operating, the vacuum pump continues to run, keeping the device in a vacuum state. If a bypass line and valve are installed on the vacuum pump’s outlet pipeline (leading to atmosphere), and this valve opens automatically when the device stops, then the device will no longer be in a vacuum state – the automatic valve thus breaks the vacuum inside the device. However, if the size of the valve is too small, it may only partially break the vacuum. The diameter of the vacuum pump’s outlet pipeline is Dn100. Thank you
Reply to 3# ever2008: For vacuum-breaking valves, it is best to use automatically regulating valves rather than on/off valves, otherwise the vacuum level will change too significantly.
It is estimated that two programmable valves need to be added. First, a DN100 programmable valve should be installed on the pipeline connecting the equipment to the vacuum pump. Then, an opening should be made in the vacuum pipeline near the pump, and a smaller programmable valve can be installed there; this valve will control the flow of air... A program should also be created such that when the equipment is turned off, the smaller programmable valve opens while the DN100 programmable valve closes. Since I don’t know the capacity of your vacuum pump, I can’t determine the size of the control valve; it is estimated that DN25 will be sufficient. The vacuum pump valves here are DN1200 in size, while the air leakage valves (i.e., the valves used to break the vacuum) are DN300. The capacity of the vacuum pump is 1050 m3/min
I am also worried that sudden pressure changes could cause damage to the equipment, which is why I asked the experts if they have any standards or experience regarding such vacuum valves.