The large knob makes these drainage valves easy to grip.

Metal provides more durability than plastic. These valves have barbed fittings that grip onto tubing for a secure hold. Use them with water and air.

Also known as luer-lock couplings, quick-turn fittings consist of a plug and a socket that connect with a half turn, so you can easily connect and disconnect your line. Use these valves with water and oil.

For chemical-processing applications in confined areas, these valves have an EPDM seal and a PVC or CPVC body to withstand aggressive and corrosive solutions and a low-profile handle to fit in tight spots.

Attach garden hose to the valve outlet. Use with water. These valves gradually open and close to adjust and regulate flow.

Use these valves for boiler maintenance and other low-pressure plumbing applications. They're for use with water. All gradually open and close to adjust and regulate flow.

Rated for twice the pressure of other threaded flow-adjustment valves, these are often used in refineries and other demanding environments. Use with water, oil, air, and inert gas. They gradually open and close to adjust and regulate flow.

Solder these valves to copper tubing for a permanent, leak-tight connection. Use them with water and oil. All gradually open and close to adjust and regulate flow.

For a lightweight and corrosion-resistant alternative to metal valves, these have a plastic body. To create a permanent, leak-tight connection, insert unthreaded pipe into the socket ends and bond with PVC primer and cement. These valves are for use with oil. They gradually open and close to adjust and regulate flow.

Often used with portable cryogenic cylinders, these valves are a third of the height of other valves for cryogenic liquid. They are designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen. All are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. These valves gradually open and close to adjust and regulate flow.

For faster actuation than motor-driven valves, these operate on compressed air. Integrate them into PLC systems for automatic control over the valve position based on system conditions. The actuator has a built-in electric pilot valve that controls the air supply to the valve. Set how much to open the valve using the programmable controller on the actuator.