Threaded Union Valves | McMaster-Carr

Clear All

	Pipe Size Pipe Size

1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
3
4

	Thread Type Thread Type

BSPP

NPT

	Body Material Body Material

Brass

Bronze

Plastic

	Connection Style Connection Style	Show

	Threaded Union

	Connection Style Connection Style	Hide

	For Use With For Use With

	Shape Shape


Straight	Tee

	Handle Style Handle Style


Lever	T-Handle

	Ball Material Ball Material

Brass

Plastic

	Valve Type Valve Type

Ball

Check

	Color Color

	Dark Gray		Black
	White		Light Gray

	Type Type

Connector

	Port Type Port Type


Full	Standard

	Seal Material Seal Material

Plastic

Rubber

	Connection Type Connection Type

	Pipe

	Maximum Pressure Maximum Pressure

	Gender Gender

Female

	Valve Function Valve Function

Backflow Prevention

Diverting

On/Off

	Maximum Temperature Maximum Temperature

100° to 249.9° F

250° to 499.9° F

500° to 999.9° F

	Handle Type Handle Type

Flow Indicating

Lockable

Standard

	Overall Length Overall Length

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

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

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?

193 Products

About On/Off Valves

Easy-to-Install Threaded On/Off Valves

For fast installation and removal from pipelines, these valves have a union fitting that disassembles into multiple pieces. They’re for use with water, oil, air, inert gas, and steam.

Easy-to-Install Plastic Threaded On/Off Valves

These valves have union fittings that disassemble for fast installation and removal from pipelines. Use with water, air, and inert gas.

Easy-to-Install Plastic Threaded
On/Off Valves for Drinking Water

Disassemble the union fittings on these valves for fast installation and removal from your pipeline. All meet NSF/ANSI 61 for use with drinking water.

Easy-to-Install Threaded On/Off Valves for Chemicals

For fast installation and removal from pipelines, these valves have union fittings that disassemble into multiple pieces. All have a fluoroelastomer seal and a plastic body that can stand up to aggressive and corrosive solutions in chemical-processing applications.

Easy-to-Install Threaded Diverting Valves

For easy installation and removal from pipelines, all ends on these valves have union fittings that disassemble into multiple pieces. Use with water. Valves divert flow between ports.

Easy-to-Install Threaded Diverting Valves for Chemicals

For easy installation and removal from pipelines, all ends on these valves have union fittings that disassemble into multiple pieces. Their fluoroelastomer seal and plastic body can withstand aggressive and corrosive solutions for diverting flow between ports in chemical-processing applications.

Diverting Valves for Drinking Water

To divert flow between ports in drinking water lines, these valves meet NSF/ANSI 61.

Easy-to-Install Threaded Check
Valves for Harsh Chemicals

To reduce installation time and allow for maintenance without detaching pipe connections, these valves have union fittings.