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Overview

Reciprocating refrigeration compressors are positive-displacement machines that use pistons and cylinders to compress refrigerant for industrial and commercial cooling. They come in single- or multi-stage designs, oil-lubricated or oil-free, and are common in cold storage, process cooling and large HVAC chillers. Key selection factors include displacement, maximum pressure, compatibility with the refrigerant, cooling method, and serviceability for valve plates and seals.

FAQ

What should I inspect when buying a used reciprocating refrigeration compressor?

Check service records, operating hours, oil analysis, valve plate condition, leakage and wear on cylinders and pistons, motor integrity, and whether it runs under load. Verify refrigerant compatibility and any required retrofits.

How do I prepare a compressor for safe shipping?

Drain oil and refrigerant per regulations, secure moving parts, protect suction/discharge ports, bracket the unit to a crate or skid, note weight and center of gravity, and arrange carriers familiar with heavy refrigeration equipment and hazmat rules.

What routine maintenance keeps a reciprocating compressor reliable?

Perform regular oil and filter changes, vibration and bearing checks, valve plate inspections, periodic ring and cylinder wear measurements, cooling-system cleaning, and follow manufacturer intervals for overhaul and leak testing.