Ball Checks | McMaster-Carr

	Pipe Size Pipe Size

	Thread Type Thread Type

	Body Material Body Material

	For Use With For Use With

	Connection Style Connection Style

	Threaded
	Threaded Union
	Barbed
	Socket Connect
	Push to Connect

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

Any Position

	Check Valve Type Check Valve Type

Ball

Spring-Loaded Ball

	Maximum Pressure Maximum Pressure

	Ball Material Ball Material

Plastic

Stainless Steel

Steel

	Minimum Opening Pressure Minimum Opening Pressure

	Connection Type Connection Type


Pipe	Tube

	Gender Gender

Female

Male

	Type Type

Connector

Adapter

Reducer

	Seal Material Seal Material

	Color Color

	Dark Gray		Light Gray
	White		Black

	Maximum Temperature Maximum Temperature

	Connection Connection

Inlet

Outlet

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

	Flow Coefficient (Cv) Flow Coefficient (Cv)

0.081
0.1
0.17
0.19
0.2
0.23
0.3
0.5
0.54
0.56
0.83
0.85
0.9
1
1.1
1.2
1.21
1.31
1.4
1.47
1.53
1.9
2.69
2.71
3
3.3
3.4
3.5
3.53
3.6
4.8
5.08
5.41
6
6.3
7.7
8.96
11
14.1
22.34
25
44
45
65
81
130
250
400
Not Rated

	For Tube ID For Tube ID

	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

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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237 Products

About Backflow-Prevention Valves

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.

Threaded Check Valves for Harsh Chemicals

These valves open to allow flow in one direction and close when flow stops or reverses.

Check Valves with Barbed Fittings for Harsh Chemicals

Barbs grip onto tubing, providing a secure hold.

Threaded Check Valves

For use with threaded pipe, these valves are available with NPT, NPTF, BSPP, BSPT, and UNI/UNF (JIC) connections.

Compact Threaded Check Valves

With a shorter end-to-end length than other check valves, these fit in tight spaces.

High-Pressure Threaded Check Valves

Rated for up to twice the pressure of standard check valves, these can withstand pressures up to 3,000 psi.

Plastic Threaded Check Valves

Plastic provides a lightweight alternative to metal.

Check Valves with Barbed Fittings

Barbs grip onto tubing, providing a secure hold.

Check Valves with Push-to-Connect Fittings

Insert tubing into the fitting—no heat, solder, or flux required.

Check Valves for Steam

To withstand high pressures and temperatures in steam service applications, these valves have a 316 stainless steel body, PTFE ball, and PTFE seal.

High-Performance Threaded Check Valves for Fuel

These heavy duty valves can withstand pressures up to 1,975 psi and temperatures up to 800° F.

High-Pressure Threaded Check Valves for Oil and Fuel

Rated for at least four times the pressure of standard check valves for oil and fuel, these are often used in hydraulic applications with pressures up to 3,000 psi.

Plastic Threaded Check Valves for Oil and Fuel

Plastic provides a lightweight alternative to metal.

Socket-Connect Check Valves for Oil and Fuel

Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection.

Hydraulic Valves

Backflow-Prevention Inline Hydraulic Valves

Also known as check valves, these open to allow flow in one direction and close when flow stops or reverses.

Backflow-Prevention Screw-In Hydraulic Valves

Also known as check valves, these open to allow flow in one direction and close when flow stops or reverses.

About Backflow-Prevention Valves

Check Valves

Easy-to-Install Threaded CheckValves for Harsh Chemicals

Threaded Check Valves for Harsh Chemicals

Check Valves with Barbed Fittings for Harsh Chemicals

Threaded Check Valves

Compact Threaded Check Valves

High-Pressure Threaded Check Valves

Plastic Threaded Check Valves

Check Valves with Barbed Fittings

Check Valves with Push-to-Connect Fittings

Check Valves for Steam

High-Performance Threaded Check Valves for Fuel

High-Pressure Threaded Check Valves for Oil and Fuel

Plastic Threaded Check Valves for Oil and Fuel

Socket-Connect Check Valves for Oil and Fuel

Hydraulic Valves

Backflow-Prevention Inline Hydraulic Valves

Backflow-Prevention Screw-In Hydraulic Valves

Easy-to-Install Threaded Check
Valves for Harsh Chemicals