Who understands the principle of this safety valve?
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It is the safety valve for the turbine extraction pipeline; it consists of two valves – the smaller valve is connected to the top of the larger valve on one side, and to the thicker pipe behind the larger valve on the other side.
This design works on the same principle as the safety valve of a positive displacement pump, which returns fluid to the inlet pipeline!
This safety valve is quite old; it’s not used much these days. A few days ago, our company sent it to a specialized inspection institute for testing, and there was one of these types there – a weight-type safety valve
Is it confirmed to be a safety valve? Instead of a self-acting pressure regulator (pressure stabilizing valve)?
Haiyou is actually curious about the principle behind such a design
The weight-type safety valve is intended to ensure that, in the event of pressure fluctuations upstream of the valve, the pressure is released to the outlet