Air Inc. offers a range of pneumatic valves. Their Humphrey TAC pneumatic valves can be operated by pilot or manual/mechanical operators, while the Humphrey 310/410 direct acting solenoid valves (2-, 3-, or 4-way, Cv=0.12 to 0.14) accommodate air, vacuum or inert gases up to a flow of 100 psig.

Teqcom industries manufactures several models of pneumatic valves with different configurations, port selections, body shapes, and valve seats. The miniature and subminiature pneumatic valves come 2-way closed, 2-way open, or 3-way, with round or square bodies, Kalrez, PTFE, or Viton valve seats, and PFA or PTFE body material.

Ellis/Kuhnke Controls provides numerous pneumatic valves in mechanically, manually, pneumatically and electrically operated configurations. The pneumatic operated valves are available in both spool and poppet designs with 0.125" to 0.5" porting, 3- or 4-way, and in 2 or 3 position versions.

Georg Fischer manufactures pneumatically-actuated ball, butterfly, diaphragm, and Y-globe valves. Pneumatic all valves come 2- or 3-way with a variety of other options (manual override, fail close, fail open, double acting, etc.), while pneumatic butterfly valves come in Type 240 Wafer, Type 036 Plastic Wafer, and Type 388 Metal.

Parker Hannifin offers a variety of pneumatic valves, including electropneumatic and fieldbus, inline, lanyard, manual/mechanical, and other types of valves. The electromechanical and fieldbus options include the Isys Series and the Moduflex Miniature Electro-Pneumatic Valve System, as well as a programmable air regulator valve and modular valve stacking systems. There are also a variety of inline valves with different Cvs (0.75 to 7.0) for applications such as food and beverage processing, household and personal care packaging, etc. Additionally, the company manufactures ball valves, flow control valves, and needle valves in several different materials and styles.

Gems Sensors & Controls manufactures several types of pneumatic valves. The E and EH Series sub-miniature 2- and 3-way solenoid valves offer a maximum operating pressure of 175 psi, while the G and GH Series sub-miniature valves allow up to 250 psi; both offer a Cv range of 0.018-0.07. The A Series valve provides high adaptability, allows pressure up to 1000 psi, and Cv of 0.019-0.3; other series include the B Series (MOPD 400 psi, Cv 0.018-0.43), the C Series (400 psi, Cv 0.019-0.42), the D Series (900 psi, Cv 0.045-0.88), and the M Series (100 psi, Cv 0.018-0.07).

The Specialty Manufacturing Company (SMC) produces several valves for pneumatic use, including plastic ball and check valves that come in a variety of body materials (PVC, polypropylene, etc.) and seal materials (Buna-N, Viton, etc.); brass and stainless steel ball valves made with inline, right angle, as well as 1-, 2-, 3-, 4-, and 5-way body styles; and brass and stainless steel check valves. Other selections include brass and plastic needle valves; miniature toggle, push-button, and needle valves; selector valves; and related accessories such as pressure controls, swivels, strainers, and filters.

Omega Engineering sells a variety of pneumatic and electropneumatic control valves. The V60 Series inline pneumatic valves come 2-to-4-way, are air- or solenoid-operated, and operate under pressure up to 116 psi. Meanwhile, the PV 101 proportional valves offer 100 msec response times at maximum pressure, for use with clean, dry, non-corrosive gases. The company offers other pneumatic valve and accessory choices, as well, including tube compression bar stock ball valves, lever handle ball vales, electronic drain valves, and more.

Bosch Rexroth manufactures pneumatic directional, flow and check valves. The pneumatic directional valves offers a unique set of characteristics and flow ratings. The pneumatic flow and check valves are divided into six subclasses: check-choke, throttle, non-return, quick exhaust, ball/shut-off, and logic valves.

TSI Solutions carries pneumatic valves produced by several manufacturers  Three- and 4-way directional control and proportional pressure controllers, for example, are available from companies such as Mac Valves, Spartan Scientific, Telepneumatic, and Pneumadyne. The Mac solenoids, specifically, have a stroke of 0.14", a patented oval-shaped armature that allows for more coils of wire than are found in a typical round armature, strong return springs, and dynamic, case-hardened D seals rather than standard O-rings. Mac also uses a 4-way pilot valve instead of a 3-way pilot in order to improve response time.

Boig & Hill is a distributor of pneumatic valves, controls, and related instruments, and carries products by Everlasting, Worcester Controls, Watson McDaniel, Trerice, Farris Engineering, and Sprague Pump. Everlasting's valves come in five different series, including the 4060 and 4061 Series that can be installed with a hand wheel in any position and offers a self-wiping seal disc, and the 6000 Series, which is an outside screw and yoke type.

Conant Controls offers both pneumatic selector valves and valve operators. Included in their selection are Chemselect corrosion-resistant control valves available in various themoplastics, with pressure ranges of either 0-80 or 0-125 psi; and control selector valves with stainless steel or Teflon rotors. Multiport stack control valves are available with choice in number of stacks (2 to 5) and drillings (2- to 5-way), at 150 psi maximum pressure standard. The company also sells venting valves in aluminum, brass, and 316 stainless steel, which have maximum pressures between 250 and 1,000 psi.

Applied Industrial Technologies offers pneumatic valves and accessories including directional controls, flow controls, and pressure regulators. Directional control valves are available for a wide range of duties be they hazardous, mobile, or extreme, and can be operated electrically, mechanically, manually, or pneumatically; over a dozen valve body and spool styles are available, as well. The company also supplies check valves in brass, composite, nickel-plated brass, and stainless steel; the number of end types, port types, and thread types on the check valves can also be varied according to customer needs. Lastly, AIT sells needle valves in five sizes, from 0.125" to 0.75".

Jamieson Equipment Company carries a broad selection of pneumatic valves.  DelTech butterfly valves are available in Series 50 (wafer body) and Series 52 (lug body), full cut or under cut, and several sizes, as are the Bray butterfly valves. The DelTorq pneumatic actuator Series 20 is a pneumatically-operated, quarter-turn rotary, dual rack and pinion design actuator that complies to ISO 9001:2000, while the Bray pneumatic actuator comes in Series 92 double acting and Series 93 spring return, in sizes 48 up to 255. In addition, the company offers WAM butterfly valves in single or double flanged models, as well as WAM actuators, which are suitable for a 90-degree opening and closing of WAM butterfly valves 4" to 16", at operating pressures of 29 to 116 psi. Finally, they sell a variety of air-actuated solenoid valves, such as the SK-200 Series, Valvair II Series, and Valvair Sprint Series.

Pisco offers a wide line of pneumatic valves. The solenoid valve SVA Series provides directional control on a manifold incorporated with quick fitting, while the solenoid valve SVB Series includes basic 5/2 and 3/2 spool-type directional control. Check valves are available for one-direction air flow, as are hand (shut-off) valves, which come in 2- or 3-way styles with quick fitting. The company also manufactures ball valves in three sizes, and a 3-port ball valve to change air flow direction manually.