Pilot Operated Check Valve

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FAQ

What is the structure of the check valve of the screw air compressor?
Screw air compressor check valve has two kinds: one is to open pressure, one is no need to open the pressureIn the screw compressor, there are generally several places with check valve: intake valve, main engine exhaust, oil return check valve, minimum pressure valve.The check valve is a one-way flow principle
What does the H/F/P stand for in the check valve H41H/H41F/H41P?
Respectively, the valve seat sealing surface is made of alloy / fluorine plastic / stainless steel.
Does the check valve differ in front of the water meter and press it behind the water meter?
According to the specification, check valve (check valve) should be installed behind the watch. If it is placed in front of the meter, it will cause the meter to be inaccurate and damage the meter parts.
Is it better to have explicit rules in the relevant specifications? Thank you, ah, ah, urgent.
8.5.5 vertical exhaust lines for kitchens, bathrooms, toilets, etc., should be taken to prevent backflow or to set fire dampers on the branch pipe.In addition, there are similar provisions in the code for fire protection in architectural design, which are not stated.
What is the difference between the H44H check valve and the H41 check valve?
The lift type horizontal check valve shall be installed on the horizontal pipeShanghai reliance Valve Manufacturing Co., Ltd.Lifting type is more swing type, good sealing, large resistance to fluid, horizontal should be installed in the horizontal pipe, vertical mounted on the vertical pipe;Swing type check valve installation location is not restricted, it can be installed in horizontal, vertical or inclined pipeline, such as installed in the vertical pipe, the flow direction of medium to bottom up; x0d
Why is the water ring vacuum pump equipped with check valves?
The check valve is a one-way valve, the instantaneous vacuum of the stopping pump is higher than the pump cavity, and the gas enters the pump cavity from the exhaust port, and the water pressure is connected to the vacuum pipeline, and the function of the check valve is to prevent water from entering the pipeline
Furnace blower outlet check valve what
One can be installed to prevent the backflow of high temperature gas in the boiler
What does the swing check valve "h44h-16" mean?
H44h-16 is the type of swing check valve, respectively: H check valve, 4 flange, 4 swing type H alloy steel, sealing 16 kg pressure