Stop Cocks | McMaster-Carr

	Connection Style Connection Style


Barbed	Quick Turn

Threaded	Push to Connect

Compression	Quick Clamp

	Body Material Body Material

	For Use With For Use With

	Handle Style Handle Style


T-Handle	Lever

Wing Nut	Thumb Screw

Knob

	Connection Type Connection Type


Tube	Pipe

Drain	Spout

	System of Measurement System of Measurement

Inch

Metric

	For Tube ID For Tube ID

	Shape Shape

	Straight
	90° Elbow
	45° Elbow

	Valve Type Valve Type

Stop Cock

Plug

	Pipe Size Pipe Size

	Overall Length Overall Length

	Maximum Pressure Maximum Pressure

	Valve Function Valve Function

On/Off

Sampling

	End-to-End Length End-to-End Length

	Type Type

Adapter

Connector

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Color Color

	Purple		White
	Black		Dark Gray

	Valve Operation Valve Operation

Handle

Wrench

Cable Pull

	Thread Type Thread Type

NPT

NPTF

	Gender Gender

Male

Female

	Seal Material Seal Material

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

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152 Products

About On/Off Valves

On/Off Valves with Quick-Turn Fittings

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.

Plastic On/Off Valves with Barbed Fittings

Plastic provides a lightweight and economical alternative to metal. All valves have barbs that grip onto tubing for a secure hold. They’re for use with water, oil, air, and inert gas.

On/Off Valves with Barbed Fittings

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.

Compact Threaded On/Off Valves

Install these low-profile valves in tight spots. Use with water, oil, air, and inert gas.

On/Off Valves with Compression Fittings

For more durability than plastic valves, these are made of metal. A compression sleeve bites into tubing as you tighten the nut, forming a strong seal. Use these valves with water, oil, air, inert gas, and steam.

On/Off Valves with Push-to-Connect Fittings

Insert tubing into the fittings on these valves—no heat, solder, or flux required. They’re for use with water, oil, air, and inert gas.

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 Chemicals

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.

Plastic On/Off Valves with Push-to-Connect
Fittings for Drinking Water

For a lightweight and economical alternative to metal, these valves are made of plastic. Insert tubing into the fittings—no heat, solder, or flux required. All meet NSF/ANSI 61 for use in drinking water systems.

Threaded On/Off Valves for Natural Gas and Propane

Use these valves as a mainline shutoff in natural gas and propane pipelines.

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, gasoline, and kerosene.

Sanitary Sampling Valves

Take liquid samples in sanitary environments—these sampling valves have a hygienic design, so they’re commonly used in breweries and wineries.

Drainage Valves

Also known as stop cocks, install these valves on your tank for easy draining.

Easy-Grip Drainage Valves

The large knob makes these drainage valves easy to grip.

Laboratory Valves and Fittings

Laboratory Valves

Laboratory Flanges and Turrets

Provide a connection for hose cocks, needle valves, and nozzles by attaching these flanges and turrets to your supply pipe.