Ball Check Valves | McMaster-Carr

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	Check Valve Type Check Valve Type

Spring-Loaded Ball

Ball

	Pipe Size Pipe Size

1/8
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
3
4
6

	Thread Type Thread Type

	For Use With For Use With

	Body Material Body Material

	Connection Style Connection Style

	Threaded
	Barbed
	Flanged
	Socket Connect
	Push to Connect
	Threaded Union
	Solder Connect

	Minimum Opening Pressure Minimum Opening Pressure

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

Any Position

	Connection Type Connection Type


Pipe	Tube

	Maximum Pressure Maximum Pressure

	Ball Material Ball Material

Stainless Steel

Plastic

Steel

	Gender Gender

Female

Male

	Shape Shape

	Straight

	Valve Type Valve Type

Check

	Actuation Actuation

Pressure

Vacuum

	System of Measurement System of Measurement

Inch

	For Tube ID For Tube ID

	Type Type

Connector

Adapter

Reducer

	Valve Function Valve Function

Backflow Prevention

	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
0.26
0.29
0.3
0.41
0.5
0.54
0.56
0.83
0.85
0.9
1
1.1
1.15
1.2
1.21
1.31
1.4
1.47
1.53
1.9
2.1
2.2
2.4
2.69
2.71
3
3.3
3.4
3.5
3.53
3.6
4.7
4.78
4.8
5.08
5.41
6
6.3
7.5
7.7
8.96
11
12.4
14.1
22.34
25
28
35
44
45
48
54
63
65
81
130
163
250
288
400
495
Not Rated

	Seal Material Seal Material

	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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269 Products

About Backflow-Prevention Valves

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.

Plastic Threaded Check Valves

Plastic provides a lightweight alternative to metal.

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.

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.

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.

Flanged Check Valves for Harsh Chemicals

Bolt to ANSI flanges.

Heavy Duty Check Valves with
Push-to-Connect Fittings for Drinking Water

The metal body is more durable than plastic.

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.

Plastic Threaded Check Valves for Oil and Fuel

Plastic provides a lightweight alternative to metal.

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.

Socket-Connect Check Valves for Oil and Fuel

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

Threaded Check Valves for Vacuum

Valves have NPT connections for use with threaded pipe.

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.

Check Valves for Refrigerant

These valves are often used in refrigeration and air-conditioning systems.

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

Threaded Check Valves

Compact Threaded Check Valves

Plastic Threaded Check Valves

High-Pressure Threaded Check Valves

Check Valves with Barbed Fittings

Check Valves with Push-to-Connect Fittings

Easy-to-Install Threaded CheckValves for Harsh Chemicals

Threaded Check Valves for Harsh Chemicals

Check Valves with Barbed Fittings for Harsh Chemicals

Flanged Check Valves for Harsh Chemicals

Heavy Duty Check Valves withPush-to-Connect Fittings for Drinking Water

High-Performance Threaded Check Valves for Fuel

Plastic Threaded Check Valves for Oil and Fuel

High-Pressure Threaded Check Valves for Oil and Fuel

Socket-Connect Check Valves for Oil and Fuel

Threaded Check Valves for Vacuum

Check Valves for Steam

Check Valves for Refrigerant

Hydraulic Valves

Backflow-Prevention Inline Hydraulic Valves

Backflow-Prevention Screw-In Hydraulic Valves

Easy-to-Install Threaded Check
Valves for Harsh Chemicals

Heavy Duty Check Valves with
Push-to-Connect Fittings for Drinking Water