Part type
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Parts database
Find parts — brand, part number, specs & price bands
Solenoids, inlet valves, MPVs, drains, sensors, transducers, switches, contactors, relief valves.
Coil resistance figures are typical cold DC values for the stated voltage and wattage class. Compare against the coil’s own tag, not a generic table. Lock out power and bleed sump pressure to 0 PSIG before touching any valve or pilot line.
Load/unload solenoid
73/2-way load/unload solenoid (generic)
Generic / universal · The pilot valve that sends control air to the inlet valve and blowdown line. Energise to load, de-energise to unload on most machines.
NC
Atlas Copco Y1 load solenoid valve
Atlas Copco · Elektronikon-driven pilot solenoid on GA/GX screw units. Energise Y1 = load, de-energise = unload plus blowdown.
NC
Ingersoll Rand 1SV load solenoid
Ingersoll Rand · Intellisys/Xe-series pilot solenoid controlling the inlet valve and blowdown on UP6, R-Series and Sierra units.
NC
Kaeser Y1 load / venting solenoid
Kaeser · Sigma Control-operated pilot valve for the inlet valve and venting on ASD/BSD/SK/SM units.
NC
Sullair load / control solenoid
Sullair · Pilot solenoid feeding the Sullair spiral/blowdown valve and inlet valve on LS and ShopTek units.
NC
Quincy QGS / QSI load solenoid
Quincy · Pilot solenoid controlling the inlet valve on Quincy QGS, QGV and QSI rotary screw packages.
NC
Gardner Denver load solenoid (SV1)
Gardner Denver · Pilot valve for the inlet valve and blowdown on Electra-Saver, ESM and AirSmart-controlled units.
NC
Inlet (intake) valve
6Poppet-type inlet (intake) valve
Generic / universal · Spring-loaded poppet between the air filter and the airend that opens on load and slams shut on unload or shutdown.
NC
Butterfly-type inlet valve
Generic / universal · Rotating disc inlet valve used on larger and modulating packages, driven by an air cylinder or a lever actuator.
NC
Atlas Copco unloader / inlet valve assembly
Atlas Copco · Combined inlet throttle and non-return assembly mounted directly on the GA/GX airend suction flange.
NC
Ingersoll Rand inlet valve (UP6 / R-Series)
Ingersoll Rand · Piston-actuated poppet inlet valve with integral check, sitting between the intake filter and the airend.
NC
Kaeser inlet valve with integral check
Kaeser · Suction-side control valve on ASD/BSD/CSD packages that throttles and non-returns in one body.
NC
Sullair inlet butterfly valve
Sullair · Air-cylinder-driven butterfly inlet valve used across LS-series machines, supporting modulation and on/off control.
NC
Blowdown / vent valve
1 Thermostatic (thermal) valve
1 Oil stop / check valve
1 Condensate drain
2Timed electric condensate drain (solenoid)
Generic / universal · 2/2-way solenoid opened for a set duration at a set interval to dump condensate from the receiver, dryer or separator.
NC
Zero-loss (level-sensed) condensate drain
Generic / universal · Capacitive sensor detects condensate level and opens a pilot-operated valve only long enough to expel liquid — no compressed air lost.
NC
Modulation / capacity control
1 Sensor
4Airend discharge temperature sensor (PT100 / PT1000)
Generic / universal · RTD in the airend discharge that feeds the high-temperature trip, typically 220 – 228 °F (104 – 109 °C).
Line / sump pressure transducer (4–20 mA)
Generic / universal · Two-wire loop-powered transducer supplying sump and line pressure to the controller.
Separator differential pressure switch / sensor
Generic / universal · Signals a plugged separator element by monitoring pressure drop across it.
NO
Oil level sensor / switch
Generic / universal · Float, capacitive or optical sensor that trips or warns on low sump oil level.
NC