Does a diaphragm pump need a safety valve?
Thread Content
Does a diaphragm pump need a safety valve? What will happen if it’s not added?
It is necessary; without it, closing the valve on the outlet pipe may damage the diaphragm.
The hydraulic diaphragm pump is equipped with a safety valve, and the return line from the outlet to the liquid suction tank also has a safety valve
It needs to be added; otherwise the plunger will be bent under pressure, or the inlet check valve will leak
It is necessary, as a protective mechanism for operational use, to prevent pressure buildup from causing leaks at pipeline joints or valves
Generally, it has a built-in adjustable safety valve
Without a safety valve, it is possible for a short period of time (1-2 hours), but prolonged use can cause the diaphragm to deform under high pressure, leading to its damage
Using both internal and external systems is the safest approach; once the pipes get blocked, the pressure will keep rising, as mentioned in the API standards as well