Regulators, Gauges & Cylinders

50+ products

Expected delivery: Tue, Nov 17

Air preparation and control parts for compressed air systems. This subcategory covers pressure regulators, particulate and coalescing filters, lubricators and combination FRL units, pressure gauges in dry and liquid-filled styles, pneumatic air cylinders, solenoid and manual valves, flow controls, exhaust mufflers and pressure relief valves. These parts set and hold the right pressure at each drop and keep moisture and dirt out of tools and machines.

What to check before you order

Port size and flow. Regulators and FRLs are listed by port size, such as 1/4 in. or 1/2 in. NPT, and by flow. A unit that is too small will drop pressure when tools run.
Gauge range. Pick a gauge with a full-scale range of about twice your normal working pressure, so the reading sits near the middle of the dial. Liquid-filled gauges hold up better to vibration and pulsation.
Gauge mount. Choose bottom or back (center back) connection to suit the panel or line.
Cylinder specs. Air cylinders are specified by bore, stroke, mounting style and whether they are single or double acting. Match those to the old cylinder.
Filter element. Particulate filters catch dirt and water. Coalescing filters remove fine oil mist ahead of painting or sensitive equipment.

Fittings to plumb these parts are under air fittings and couplers. Lubricator oil is in oils and cutting fluids, and all compressed air parts are in hydraulics and pneumatics.

Common questions

What is an FRL and what order do the parts go in?

An FRL is a filter, regulator and lubricator in one air preparation unit, installed in that order in the direction of airflow. Skip the lubricator on oil-free lines.

What is a relieving regulator?

A relieving regulator vents excess downstream pressure through a small port when the setting is turned down. A non-relieving regulator does not vent, so pressure must be bled off elsewhere.