Air Valve Glossary

Air Valves
Air valves allow metered fluid flow in one or both directions. They are used in pneumatic circuits to regulate the rate of activation or exhaust of cylinders and other pneumatic devices.

Check Valves
Check valves are self-activating safety valves that prevent process flow from reversing Learn more about Check Valves

Air Pressure Regulators
Air pressure regulators control pressure in air lines (usually adjustable) to remove fluctuations and maintain consistent pressure for pneumatic devices.

Needle Valves
Needle valves are small valves used for flow control in liquid or gas services. The fine threading of the stem and the large seat area allow for precise resistance to flow.

Plug Valves
Quarter-turn plug valves use a cylindrical or tapered plug with a hole in the center to control straight through flow when in the open position.

Control Valves
Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system

Valve Actuators,
Companies specify air supply pressure for pneumatic actuators and fluid supply pressure for hydraulic actuators. There are several fail-safe methods for valve actuators. Devices can open or close valves in case of power failure, or in case Learn more about Valve Actuators, All Types

Gas Valves
Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow. Gas valves are used.

Pressure Relief Valves
Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line. Pressure relief valves are designed to provide protection from over-pressure in steam, gas, air and liquid lines. Relief valves.

Valve Positioners
Valve positioners compare a control signal to a valve actuator's position and move the actuator accordingly. They are used with both linear valves and rotary valves. Valve positioners compare a control signal to a valve actuator's position and move.

Dispensing Needle Valves
Precise dispensing needle valves release fluid when an activator (for example, air) acts on a piston, which shifts the spool or needle into an open position. Precision dispensing needle valves are designed to provide precise fluid dispensing.

Precision Pneumatic Valve Actuators
(164 companies) Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. Linear motion devices open and close.

Solenoid Valve Connectors
Solenoid valve connectors are used to connect solenoid valves and pressure switches. Learn more about Solenoid Valve Connectors

Solenoid Valves (455 companies) Solenoid valves are devices that use a solenoid to control valve activation. Learn more about Solenoid Valves

Air Springs
Air springs use a contained column of air inside an elastomeric bellows or sleeve to buffer cyclic motion, provide vibration isolation, or serve as a pneumatic actuator.

Dispensing Valves, Precision
Precision dispensing valves dispense fluids with a great degree of precision. The dispensed output can be a bead, dot, fill or spray.

Gate Valves
Gate valves and knife valves are linear motion valves in which a flat closure element slides into the media stream to shut off flow.

Air Hose
Air hose is used in pneumatic systems and controls, or as supply lines for pneumatic devices and tools.

Butterfly Valves
Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow.

Compressed Air Filters
Compressed air filters are used to remove water, oil, oil vapor, dirt, and other contaminants from a compressed air supply.

Air Blow Guns
Air blow guns attach to air lines for the manual actuation and/or control of air discharge. They are used primarily for debris removal and purging, non-contact part cleaning and drying, and general laboratory or industrial applications.

Diaphragm Valves
Diaphragm valves close by means of a flexible diaphragm attached to a compressor.

Mixing Valves
Mixing valves combine the flow of two or more inlets into a single outlet for applications such as temperature and concentration control.