Piston Refrigeration Compressor Valve Plate Inspection and Replacement | Volumetric Efficiency Recovery
Worn valve plate causes 38% of volumetric efficiency drop and high exhaust temperature, xiteliduo Refrigeration Compressors describes overhaul criteria. Piston refrigeration compressor valve plate inspection checks for cracks, pitting, deformation and valve seat sealing surface abrasion. Semi-hermetic refrigeration compressor valve plate assembly is integrated inside cylinder head; disassembly and replacement must be done in factory workshop. Cold storage refrigeration compressor valve plate leakage makes high-pressure gas reflux, reduces cooling capacity and elevates discharge temperature. After valve plate replacement, pressure holding test is required; no pressure drop is allowed before loading operation. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor valve plate, refrigeration volumetric efficiency, refrigeration discharge temperature rise, refrigeration valve seat leakage, refrigeration compressor manufacturer, cold storage compressor overhaul, refrigeration compressor supplier
FAQ
Q1: What percentage of volumetric efficiency loss and high discharge temperature faults come from damaged valve plate? A: 38% of volumetric efficiency attenuation and high exhaust temperature originate from worn valve plate. Q2: What defects should be checked on valve plate and valve seat? A: Cracks, pitting, deformation and sealing surface abrasion. Q3: Can semi-hermetic valve plate be replaced on site? A: No, cylinder head valve assembly overhaul needs factory workshop. Q4: What effect of valve plate leakage? A: High-pressure gas flows back, cooling capacity decreases and discharge temperature rises. Q5: What test is mandatory after valve plate replacement? A: Pressure holding test to verify sealing performance. Q6: What typical field symptom of valve plate failure? A: Compressor runs with high current but poor refrigeration effect. Q7: What will accelerate valve plate damage? A: Liquid slugging, solid impurities and excessive discharge pressure.
