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What is a one-way valve told by BAISYLOK?

Issuing time:2023-05-20 22:24Author:baisylok

What is a one-way valve?


The one-way valve acts as a one-way gate in the system. The pressure applied to the inlet will be able to pass through with minimal resistance. However, if pressure is applied to the outlet side, the valve will close. This can allow the medium (gas or liquid) to flow in the desired direction and prevent backflow.

The rated pressure of a one-way valve refers to the working pressure and the pressure that the valve can withstand when closed. It goes without saying that you should never use a one-way valve above the specified working pressure.

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How does it work?

Most one-way valves belong to one of the three main types of valves.


spherical


Lift valve


Swing type




Each type of one-way valve uses a different closing method.




What is opening pressure?

The opening pressure is based on the set pressure of the spring strength in the valve. The common opening pressure is 10 PSI, which is the pressure required to open a valve of this grade in the absence of external factors. However, things are not that simple. There are several things that can affect the way this number actually works.


Back pressure

The back pressure increases the opening pressure of the valve. If you have a system containing 200 PSIG and there is a check valve on the feed line with an opening pressure of 10 PSIG, then you must actually generate a pressure of 210 PSIG at the inlet before the valve opens.












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