Clippard Instrument Laboratory has manufactured miniature pneumatic valves and related products. The Mouse is their best-selling pneumatic electronic valve, which allows a flow of 0.5 scfm at 25 psi, 0.6 scfm at 100 psi, and 6.1 scfm with a booster. Their line of manual and air piloted valves is deep; it includes 16 valve and valve-related products, including toggle valves, stem valves, air valve actuators, and indicator gauges and counters.

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.

Webb Kentrol/Sevco is a distributor and authorized assembler for many control and automated valves for the process and power industries. They offer quarter turn valves such as ball valves (high pressure, metal seating, and ceramic lining optional), butterfly valves, and plug valves; linear valves such as balanced and unbalanced valves, severe service valves, and steam conditioning valves; and pneumatic, electrohydraulic, and electric actuators.

OTP Industrial Solutions carries pneumatic automation products by SMC Pneumatic. Their solenoid valves range from port sizes M3 to 2", manifoldable either on bar stock or stackable, with numerous integrated wiring options. Their mechanical, manual, and air pilot valves are constructed utilizing corrosion-resistant aluminum die cast bodies with optional heavy duty actuators and Buna N seal design, for 2-, 3-, or 4-way flow configurations.

Pearse-Bertram is a distributor of pneumatic products from several leading manufacturers. They carry 2-, 3-, and 4-way directional control SMC valves which have life ratings from 50 to 200 million cycles, solenoid and NAMUR valves by Versa, miniature 2- and 3-way control valves from Peter Paul, and manual flow control, check, and needle valves by Deltrol.

Steven Engineering is the largest distributor of industrial controls and components in the western United States, and offers pneumatic valves manufactured by Parker Climate & Industrial Controls, Skinner Valve, and SMC Pneumatics.

The Knotts Company distributes pneumatic valves from eight different manufacturers. Air valves from Allenair and Humphrey are available in 2-, 3-, or 4-way, inline, manifold, single or double solenoid, in either brass, aluminum, or stainless steel; valves from Deltrol include flow, needle, check, slide, and quick exhaust. Other similar choices are available from KIP, Norgren, Peter Paul, Pneumadyne, and Versa.

Gulf Controls carries a variety of pneumatic products from several manufacturers. Air valves by Norgren, Peter Paul Electronics, and Versa are available, as are directional and solenoid valves. Flow control and check valves by Flairline are also offered.

Mann Fluid Power offers a wide selection of air pilot and solenoid valves from manufacturers such as AAA, Control Line, Hoerbiger Origa, Lexair, Mead, Precision Dynamics, and Snaptite.

The PneuMagnetic actuator is a self-contained pneumatic-magnetic device meant as a drop-in replacement for the OEM coil on a direct acting solenoid valve. Valves converted to this system are operated by an air pilot using a small diameter, flexible pneumatic line with no electricity, field wiring, or conduit required. This actuator works with ASCO, SMC, and Parker-Skinner solenoid valves.

SunSource is a leading fluid power distribution company that also provides products, service, and information in pneumatics and related industrial components. Among some 80,000 products and 250 manufacturers stocked by the company are pneumatic valves by Fabco-Air, Norgren, Parker Skinner, and Versa.

Adamant Valves offer a broad range of valves for use in sanitary conditions including pneumatic valves. In addition to a variety of pneumatically controlled valves, Adamant also provides angle seat and tank bottom pneumatic valves. AV-1PI series pneumatic sanitary butterfly valve features a maximum pressure rating of 145 psi, sizes ranging from DN25/1" to DN150/ 6", forged AISI 316L/304 disc and body as well as 3 or multi position handle.