"> J.P. Sauer & Sohn J.P. Sauer & Sohn WP 81 L 500/40
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J.P. Sauer & Sohn

J.P. Sauer & Sohn WP 81 L 500/40

J.P. Sauer & Sohn J.P. Sauer & Sohn WP 81 L 500/40 is a shipboard unit in the Compressors group, classified in the source as Starting Air Compressor. It is normally installed in the engine room, compressor room, refrigeration plant or deck service area according to air/refrigerant duty. Its primary duty is to raise the pressure of air or refrigerant for starting, service, deck or refrigeration systems. In service it interfaces with suction filters, intercoolers/aftercoolers where applicable, receivers, separators, lubrication system, safety valves, motor drive and controls. The source record states 40 bar for this exact variant; this information is retained unchanged and distinguishes it from neighboring entries in the same product family. For exact limits, settings, test values and approved maintenance criteria, refer to the manufacturer documentation for the exact figure.

Components & Design

Component data being added…

Technical Data

compressor type starting_air_compressor
pressure bar 40
capacity nm3h 500
stages 4

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Common failures & inspection points

Valve wear or carbon/fouling in reciprocating stages, typically indicated by reduced capacity, high temperatures or slow receiver charging
Piston/ring or internal wear, typically indicated by oil carryover, reduced pressure or increased blow-by
Cooling-water/air cooler fouling, typically indicated by high discharge temperature or thermal trip
Lubrication failure or bearing wear, typically indicated by noise, overheating or high oil consumption
Control, pressure switch or unloading fault, typically indicated by frequent cycling, failure to start/stop or abnormal pressure

Service & Maintenance

Inspect filters, valves, coolers, lubrication, belts/coupling, drains, safety devices, vibration and temperature trends; exact clearances, pressures and overhaul limits come from manufacturer documentation.

Suppliers & Spare Parts

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Replacement Parts

Keep valve kits, piston/ring or seal kits as appropriate, filters, gaskets, belts/coupling parts, pressure switches and critical bearings.
Equipment Model #77620 · ✓ still in production