The spring-piston type pressure reducing valve still experiences a gradual increase in pressure when the medium is at rest
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The Y42AX series spring-piston type pressure reducing valves used on-site are employed to reduce the pressure of high-pressure nitrogen from the upstream side; the upstream pressure is approximately 1.5 MPa, while the target pressure on the downstream side is
1. The user needs to determine whether the pressure relief valve has a function to close completely. 2. Under normal circumstances, a pressure reducing valve is used to reduce the pressure of a fluid in dynamic flow, thereby maintaining the pressure downstream within the desired range. 3. The key issue here is that when the downstream equipment is shut off, the slight leakage inherent in the pressure reducing valve allows fluid to flow from the high-pressure side to the low-pressure side, causing the pressure in the low-pressure chamber to rise. The speed of this pressure increase depends on the flow rate and the volume of the downstream equipment. 4. If waste is not a concern and the site conditions permit, a simple solution is to ensure that there is some flow in the downstream equipment; for example, a venting system can be installed, with the amount of fluid discharged being slightly greater than the leakage rate of the pressure reducing valve.