Petcock Valves | McMaster-Carr

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

NPTF

GHT

	Handle Style Handle Style


Lever	T-Handle

Wing Nut	Thumb Screw

Knob	Wheel

	For Use With For Use With

	Body Material Body Material

	Inlet Pipe Size Inlet Pipe Size

	Connection Type Connection Type


Pipe	Tube

Drain	Spout

Hose

	Connection Style Connection Style


Threaded	Barbed

Quick Turn

	Shape Shape


Straight	Tee

30° Elbow	45° Elbow

70° Elbow

	Outlet Connection Type Outlet Connection Type


Drain	Tube

Hose	Pipe

	Gender Gender

Male

Female

	Valve Type Valve Type

	Maximum Pressure Maximum Pressure

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Valve Function Valve Function

On/Off

Sampling

Flow Adjustment

	For Tube ID For Tube ID

	Valve Operation Valve Operation

Handle

Cable Pull

	Seal Type Seal Type

External

Internal

	Seal Material Seal Material

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant with
Exemptions

RoHS Compliant

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

REACH Compliant

Forward

How can we improve?

134 Products

Control of Liquids, Gases, and Solids

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 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.

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 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.

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.

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.

Solenoid On/Off Valves for Steam

Designed to withstand the high temperatures and pressures in steam service applications.

Sampling Valves for Fuel

Often installed on petroleum loading arms to test fuel quality without interrupting flow, these valves are fire-tested to meet American Petroleum Institute (API) 607, Edition 5, for securely isolating fluid and preventing the spread of fire.

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.

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.