Selection and application of pneumatic ball valves, check valves, and angle seat valves downstream of the compressor
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Hello, colleagues: A valve is needed behind the piston compressor to isolate it from the system downstream, mainly for pressure relief during startup. Check valves are the most convenient and cheapest option, but they create resistance, which increases the energy consumption of the compressor； Pneumatic ball valves are usually of the three-piece type; these valves can leak over time as they operate for extended periods. Due to the frequent start-up and shutdown of compressors, their failure rate is quite high ； Then there are angle seat valves. In systems with a slightly high pressure difference, these valves have poor reverse sealing and are prone to leakage; however, it’s not clear whether they can be used in reverse direction I wondered if there is a type of pneumatically actuated check valve that can serve as a check valve while also allowing the valve to be opened by sending a signal or using an air supply
What kind of pressure is that? A normal two-piece ball valve will suffice; it is unlikely to experience internal leakage.
Piston compressors are equipped with valve-type check valves, which is a standard feature; they are safe and reliable, have an extremely low accident rate, and are easy to maintain at a low cost. The kind you mentioned is possible, but there are many potential problems, and the drawbacks outweigh the benefits in terms of energy savings. For reference.
This post was last edited by kangqiaowuyun1 on 2019-10-24 at 12:59. Is it the valve assembly that comes built into the compressor? The sealing performance of the compressor’s exhaust valve assembly is actually poor, and leaks occur over time. We supply our own check valves for export