Sampling Valves | McMaster-Carr

	Connection Style Connection Style


Quick Clamp	Threaded

Barbed	Push to Connect

Quick Turn

	Body Material Body Material

	Connection Type Connection Type


Tube	Spout

Pipe	Drain

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

NPTF

	For Use With For Use With

	Shape Shape

	45° Elbow
	Straight
	Tee

	For Tube OD For Tube OD

	Handle Style Handle Style


Thumb Screw	Lever

T-Handle	Knob

Wing Nut

	Flange OD Flange OD

0.984"

	Spout Style Spout Style


Straight	Bent with Tab

	Valve Function Valve Function

Sampling

On/Off

	Flow Pattern Flow Pattern

L-Pattern

T-Pattern

	Maximum Pressure Maximum Pressure

	Environment Environment

Food and Beverage

Sanitary

	Overall Length Overall Length

	Gender Gender

Male

Female

	Connection Location Connection Location

Bottom

Side

	For Tube ID For Tube ID

	Valve Type Valve Type

Stop Cock

Ball

	Maximum Temperature Maximum Temperature

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

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133 Products

About On/Off Valves

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.

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.

Sampling Valves for Water

To test water quality without interrupting flow, drain a small amount of liquid through the sampling outlet.

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.

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 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.

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.

Drainage Valves

Easy-Grip Drainage Valves

The large knob makes these drainage valves easy to grip.

Drainage Valves

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

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About On/Off Valves

Flow-Control Valves

Sanitary Sampling Valves

Sampling Valves for Fuel

Sampling Valves for Water

On/Off Valves with Barbed Fittings

Plastic On/Off Valves with Barbed Fittings

Compact Threaded On/Off Valves

On/Off Valves with Quick-Turn Fittings

On/Off Valves with Barbed Fittings for Chemicals

Compact Threaded On/Off Valves for Chemicals

Drainage Valves

Easy-Grip Drainage Valves

Drainage Valves