Is a check valve installed at the outlet of the reciprocating pump?
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Is a check valve needed on the outlet pipeline of the reciprocating pump?
A check valve needs to be installed on the outlet pipeline of the reciprocating pump to prevent backflow of liquid, ensure one-way flow of the fluid, and help maintain a stable output pressure. .
In my understanding, just like metering pumps, reciprocating pumps also come equipped with two check valves.
According to the process requirements, if the pressure in the pump outlet system is higher than the inlet pressure, it must be increased. If the pressure of the outlet system is less than or equal to the inlet pressure, it can be omitted. Because in the event of a failure, the fluid may exert pressure in the reverse direction. . . . . . For reference.
The inlet and outlet valves of reciprocating pumps are themselves check valves, but check valves also need to be installed on the process pipelines
It needs to be added; in the case of a high-pressure system, two check valves of different types are required
A check valve should be installed at the outlet of the reciprocating pump. Especially in situations where there is no check valve at the inlet of the reciprocating pump, the pump body itself at both the inlet and outlet ends functions as a check valve. However, in some reciprocating pumps, factors such as the cleanliness of the fluid can cause the check valves in the pump body to fail, resulting in the backflow of fluid in the system back to the inlet of the reciprocating pump. If the pressure difference between the front and back is large and the medium is hazardous, it will pose certain risks at the site