Piston Refrigeration Compressor Valve Plate Fault Diagnosis | Abnormal Noise and Capacity Degradation
Valve plate damage accounts for 38% of piston compressor capacity loss faults, xiteliduo Refrigeration Compressors summarizes inspection and judgment criteria for field technicians. Piston refrigeration compressor broken suction valve plate creates obvious rattling noise during suction stroke, together with higher suction pressure and lower cooling capacity. Semi-hermetic refrigeration compressor has integrated valve assembly inside cylinder; internal valve damage usually requires factory disassembly and overhaul. Cold storage refrigeration compressor valve plate fatigue often comes from liquid slugging, overpressure or long-term high discharge temperature. Valve plate clearance test can be done by air blowing inspection. Air leakage through valve seat indicates valve plate deformation or crack. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor valve plate, refrigeration compressor capacity loss, refrigeration liquid slugging, refrigeration compressor abnormal noise, refrigeration compressor manufacturer, cold storage compressor fault diagnosis, refrigeration compressor supplier
FAQ
Q1: What percentage of piston compressor capacity reduction faults are caused by valve plate damage? A: 38% of capacity loss failures originate from valve plate damage. Q2: What acoustic symptom belongs to broken suction valve plate? A: Obvious rattling noise during suction stroke. Q3: What operating parameters change with damaged suction valve? A: Suction pressure rises and cooling capacity drops significantly. Q4: What are the main root causes of valve plate fatigue failure? A: Liquid slugging, overpressure and long-term high discharge temperature. Q5: Simple field test method for valve plate tightness? A: Air blowing test to check air leakage across valve seat. Q6: Why semi-hermetic valve damage cannot be repaired on site? A: Valve assembly is built inside cylinder, needing professional factory overhaul. Q7: What will happen if cracked valve plate continues running? A: Further capacity decline, increased power consumption and accelerated piston wear.
