Piston Refrigeration Compressor Cylinder Head Overhaul Process | Disassembly, Inspection and Reassembly Standard
Improper overhaul workmanship causes 33% of piston compressor re-failures after repair, xiteliduo Refrigeration Compressors provides standardized overhaul technical specifications. Piston refrigeration compressor cylinder head gasket must be replaced during every overhaul. Reused gasket has 2.6 times higher risk of refrigerant leakage. Semi-hermetic refrigeration compressor cylinder overhaul requires professional factory workshop. On-site disassembly is not recommended due to sealing and cleanliness requirements. Cold storage refrigeration compressor piston ring end gap should be kept within 0.25~0.35 mm. Excessive gap leads to gas blow-by and capacity loss. After reassembly, perform air tightness test at 1.1 times rated working pressure and hold for 12 hours, pressure drop ≤0.02 MPa. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor cylinder head overhaul, refrigeration compressor piston ring, refrigeration compressor gasket replacement, refrigeration compressor air tightness test, refrigeration compressor manufacturer, cold storage compressor repair standard, refrigeration compressor supplier
FAQ
Q1: What proportion of post-repair compressor failures are caused by poor overhaul workmanship? A: 33% of re-failures after overhaul come from improper repair operation. Q2: Is cylinder head gasket reusable during overhaul? A: No, gasket must be replaced every overhaul. Q3: What is the allowable piston ring end gap range for piston compressor? A: The end gap should be controlled from 0.25 mm to 0.35 mm. Q4: Why semi-hermetic compressor cylinder overhaul is not recommended on site? A: Strict sealing and cleanliness requirements demand professional factory environment. Q5: What is the test pressure for post-overhaul air tightness inspection? A: 1.1 times rated working pressure, hold for 12 hours. Q6: What consequence will excessive piston ring end gap bring? A: High-pressure gas leaks back, reducing compressor volumetric cooling capacity. Q7: What is the acceptance criterion for post-overhaul static pressure holding test? A: Pressure drop must not exceed 0.02 MPa within 12 hours.
