Refrigeration Compressor (Reciprocating) · Refrigeration
Sabroe TSMC 116 S — Two-stage reciprocating compressor (4 HP + 12 LP cylinders) for low-temperature industrial refrigeration; R717, R22, R134a, R404A, R507.
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Source: cooltech.fi · not checked against a manufacturer datasheet
| Oil change/filter renewal | typically every 4,000-8,000 running hours or per oil analysis - confirm against the current Sabroe manual for this frame size |
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| Valve plate inspection | typically every 8,000-12,000 running hours or on capacity/efficiency drop - confirm against the maker's recommendation |
| Shaft seal replacement | condition-based, typically on leakage or every 2-4 years of continuous duty |
| Major overhaul (bearings, running gear) | commonly in the 20,000-40,000 running hour range for two-stage ammonia reciprocating compressors of this size - strongly duty-dependent, confirm against running hours and oil analysis trend |
| Piston ring end gap | typically around 0.3-0.5 mm for the compressor's 100 mm bore as a general reciprocating-compressor guideline - confirm against the maker's limit |
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| Big-end bearing clearance | typically in the order of 0.05-0.15 mm radial for this compressor class - confirm against the maker's limit |
| Valve plate lift/wear | no universal figure - renew once the reed or ring shows a visible wear step, pitting, or fails the maker's flatness check |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Refrigeration compressors serving classed cargo/provision systems are typically included in Continuous Survey Machinery (CSM) with periodic function tests of safety cut-outs (high pressure, low oil pressure, motor overload); class will want relief valve test certificates and safety trip test records.
Estimated lifetime: The crankcase/frame design life typically extends well beyond 100,000 running hours with proper maintenance; valve plates and shaft seals are the practical wear-limiting items and are replaced on condition rather than a fixed lifetime.
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