Compressor inlet control valve
Thread Content
For reciprocating compressors, there is a control valve at the inlet; must this control valve open when there is no pressure?
It should be like this; in accident situations such as a shutdown of the instrument air, the machine must definitely be stopped. The pressure in the system can flow back into the hydrogen pipeline network; if it is closed off, pressure will build up, and the safety valve may activate
It should be the control valve for returning hydrogen, not the inlet control valve
There is usually no control valve at the inlet of a reciprocating compressor, right? Is it the inter-stage return control valve in the multi-stage compression process? If possible, you could upload a picture so that everyone can understand the issue better.
1. Under normal conditions, there is no control valve at the inlet of the reciprocating machine. 2. A backflow control valve is installed at the outlet/inlet of the final stage of the reciprocating machine; this is required by the process specifications. 3. If the pressure changes significantly, it is also possible to install a regulating valve at the inlet for pressure stabilization.