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Compressed Air

Compressors, dryers, receivers, filtration and nitrogen generation. Usually the most expensive utility per unit of useful work, and the one where leakage is the most common avoidable cost.

10 types, and what a survey records

Equipment type	Recorded for each one
Screw Compressor	Power rating · Voltage · Phase · Full Load Amps · Free Air Delivery · Working pressure · Receiver volume · Lubrication · VSD fitted · Dryer type · Load pressure · Unload pressure · Communication protocol · Leak survey completed · Leak survey date · Measured specific energy
Reciprocating Compressor	Power rating · Voltage · Phase · Full Load Amps · Free Air Delivery · Working pressure · Receiver volume · Lubrication · VSD fitted · Dryer type · Communication protocol · Leak survey completed · Measured specific energy
Dryer	Power rating · Voltage · Dryer type · Flow capacity · Pressure dew point
Receiver	Volume · Working pressure · Drain type
Centrifugal Compressor	Free air delivery · Discharge pressure · Motor power · Specific power · Blow-off / turndown · Running hours · Overhaul interval
Oil-free Compressor	Free air delivery · Discharge pressure · Motor power · Technology · Air quality class · Running hours
Filter / Separator	Type · Rated flow · Pressure drop · Element change interval · Last element change · Differential pressure monitored
Booster Compressor	Inlet pressure · Outlet pressure · Flow · Motor power · Application served · Running hours
Condensate Management	Treatment · Condensate volume · Discharge consent / limit · Media change interval · Drains
Nitrogen Generator	Type · Purity · Flow rate

Anything not listed is recorded under “Other Compressed Air” — no list of industrial equipment is ever finished, and a register that pretends otherwise forces people to pick something untrue.

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Production · Surface Finishing & Treatment · Packaging & Labelling · Inspection & Test · Materials Handling · Process Heat · HVAC & Refrigeration · Ventilation & Extraction · Electrical Distribution · Water & Effluent · Utilities · Controls & Automation · Lighting · Sensors / Instrumentation