To handle these challenging situations, ASME provides alternate means of testing relief valves, as documented in ASME Performance Test Code (PTC) 25 Pressure Relief Devices.

Generally, the first step in troubleshooting these valves is to measure actual suction pressure and suction line temperature of the refrigerant leaving the evaporator and calculate its current ...

The Aventics Series 625 Sentronic proportional pressure control valves feature a control deviation of less than 0.5% to deliver accurate, electronic proportional pressure control and provide the ...

A major deviation often indicates a damaged coil. Pressure Gauges: Install gauges before and after the valve to measure pressure when operational. Verify that the system has sufficient pressure (above ...