Piston Refrigeration Compressor Shaft Seal Inspection and Replacement | Prevent Oil Leakage and Air Ingress
Shaft seal failure accounts for 34% of piston compressor refrigerant and oil leakage faults, xiteliduo Refrigeration Compressors introduces shaft seal replacement procedure. Piston refrigeration compressor shaft seal leakage can be judged by oil trace on shaft end and gradual system pressure drop. Semi-hermetic refrigeration compressor has fully welded shell without rotating shaft seal; oil leakage risk is much lower than open piston models. Cold storage refrigeration compressor shaft seal replacement requires full refrigerant recovery and system pressure relief before disassembly. After shaft seal installation, run static pressure holding test for 24 hours; no oil seepage and pressure drop ≤0.02 MPa. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor shaft seal, refrigeration oil leakage, refrigeration air ingress, refrigeration refrigerant recovery, refrigeration compressor manufacturer, cold storage compressor shaft seal maintenance, refrigeration compressor supplier
FAQ
Q1: What percentage of piston compressor oil and refrigerant leakage faults come from shaft seal damage? A: 34% of leakage failures are caused by failed shaft seal. Q2: What field signs indicate shaft seal leakage? A: Oil traces at shaft end and slow system pressure reduction. Q3: Why semi-hermetic compressor has no shaft seal? A: The shell is fully welded, no rotating shaft penetrates out of shell. Q4: What preparation work before shaft seal disassembly? A: Recover refrigerant and release system pressure completely. Q5: What acceptance standard after shaft seal replacement? A: 24h static pressure holding test, no oil seepage and pressure drop ≤0.02 MPa. Q6: What secondary hazard comes from shaft seal air ingress? A: Air and moisture enter system, causing acid formation and component corrosion. Q7: What material damage will accelerate shaft seal wear? A: Solid particles and liquid refrigerant impact on seal contact surface.
