Stop Cock Faucets | McMaster-Carr

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235 Products

Flow-Control Valves

On/Off Valves with Luer Lock Fittings

With just a half turn or a light push, these valves connect to luer lock fittings on your line.

On/Off Valves with Barbed Fittings

These valves have barbs that grip onto tubing, providing a secure hold. Because they’re made of metal, they are more durable than plastic valves and withstand higher temperatures.

Compact Threaded On/Off Valves

Install these valves in tight spots, such as where pipelines are crowded together. They’re less than half as long as standard threaded valves and one-third shorter in height. Use with water, oil, air, and inert gas.

Compact Threaded On/Off Valves for Chemicals

For chemical-processing applications in confined areas, these valves have a low-profile handle to fit in tight spots. A rubber seal and a plastic body stand up to aggressive, corrosive solutions.

On/Off Valves with Barbed Fittings for Chemicals

Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a plastic body and a chemical-resistant seal.

Compact Threaded On/Off Valves for
Natural Gas, Propane, and Butane

Install these low-profile valves in low-clearance pipelines for natural gas, propane, and butane.

Compact Threaded On/Off Valves for Fuel

A low-profile handle allows these valves to fit in low-clearance pipelines for diesel fuel, fuel oil, and kerosene.

Plastic Threaded Flow-Adjustment
Valves with Garden Hose Outlet

For lightweight and corrosion-resistant alternative to metal, these valves are plastic. Attach garden hose to the valve outlet. Use with water. These valves gradually open and close to adjust and regulate flow.

Threaded Flow-Adjustment
Valves with Garden Hose Outlet

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

Drain Valves

High-Temperature Drain Valves

Empty fluid from tanks in boiler rooms or heat transfer systems—these valves withstand higher temperatures than our other drain valves. Also known as stop cocks.