MAC Valves offers a full line of pneumatic valves that come in three families. Miniature valves are solenoid operated with flow Cv ratings of 0.06 to 0.12 for 3-way, and 0.035 to 0.1 for 4-way. Small 3-way solenoid operated valves come in 15 sizes and provide Cvs of 0.06 to 1.2, while large 2-way valves come in 9 sizes with a Cv range of 1.5 to 60.0. Finally, the small 4-way valves start with Cv of 0.035 and end at 1.2, while the large 4-way valves range from 1.2 to 15.9.

Numatics manufactures several types of pneumatic valves for different applications and levels of performance. Directional control valves come either in Standard Series or 2000 Series; both allow for different port sizes and Cv flow capacities, while the 2000 Series offers advanced circuit board technology and is Fieldbus Electronics capable. The company also makes ISO valves to adhere to ISO specifications, inline- and manifold-mounted valves featuring DIN plug-in solenoids with indicator lights, and poppet valves ideal for use with single acting cylinders, air bellows, and vacuum material handling applications.

Flairline manufactures pneumatic flow control and check valves that incorporate the "O-Check" dilating O-ring design for rapid open/close without any other moving parts. This technology allows free flow in one direction, and accurately metered flow in the opposite direction. Offered in five sizes, the flow control valves have a standard metering needle that includes a compound needle taper of 5 and 15 degrees and adjustment stem threads. The check valves also come in five sizes, and are designed to be maintenance free.