Let’s Know About Check Valve. Types Of Check Valve.
The valve that is used to prevent backflow in a piping system is known as a Check Valve or non-return valve(NRV). The pressure of the fluid passing through a pipeline opens the valve, while any reversal of flow will close the valve. It allows full unobstructed flow and automatically shuts as pressure decreases. The exact operation will vary depending on the mechanism of the valve.
#Parts of a Check Valves:
It consists of the body, cover, disk, hinge pin, and seat ring. In the image below you can see the parts of the check valves.
#Types of Check Valves or Non-Return Valves:-
The type of disk will decide the type of valve. The most common types of Check valves are:-
A. Swing Type:-
01. Top Hinged
02. Tilting disk
B. Lift Type:-
01. Piston Type
02. Ball-type
C. Dual Plate Type
D. Stop Check Valve.
#Application of Check Valves or (NRV):-
Check valves are used in a piping system to prevent backflow. The discharge line of rotary equipment such as pumps and compressors is always fitted with check valves or non-return valves to prevent backflow.
The only function of a Non-return valve is to prevent backflow. There is no better alternative. Yes, you can choose the best NRV from the various available type that you have learned but you cannot supplement the Non-return valve with another valve. яндекс
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