Tube Check Valves | McMaster-Carr

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	Pipe Size Pipe Size

1/8

	Connection Style Connection Style


Threaded	Barbed

Push to Connect	Yor-Lok

Quick Clamp	Solder Connect

Quick Turn	Unthreaded

	For Use With For Use With

	Body Material Body Material

	Connection Type Connection Type	Show

	Tube

	Connection Type Connection Type	Hide


Pipe	Tube

Hose

	System of Measurement System of Measurement

Inch

Metric

	For Tube ID For Tube ID

	For Tube OD For Tube OD

	Minimum Opening Pressure Minimum Opening Pressure

	Shape Shape


Straight	90° Elbow

	Valve Type Valve Type

Check

Vacuum Breaker

Dual Check

	Check Valve Type Check Valve Type

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

Any Position

	Maximum Pressure Maximum Pressure

	Seal Material Seal Material

Rubber

Plastic

Bronze

	Gender Gender

Female

Male

	Valve Function Valve Function

Backflow Prevention

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Actuation Actuation

Pressure

Vacuum

	Connection Connection

Inlet

Outlet

	Fitting Type Fitting Type

Connector

Adapter

	Flow Coefficient (Cv) Flow Coefficient (Cv)

0.1
0.2
0.22
0.26
0.29
0.3
0.41
0.47
0.5
0.75
1.1
1.2
1.3
1.4
1.47
1.68
1.9
2.09
2.2
2.4
2.5
3.3
3.5
3.9
4.48
4.6
4.7
4.8
6
6.01
6.56
7.5
9.36
9.5
11.9
12
12.4
14.3
16.3
20.9
24
24.16
35.84
37
51.9
52
60
63
64
77.9
82.19
102
111
141
156
Not Rated

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

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165 Products

About Backflow-Prevention Valves

Check Valves with Barbed Fittings

Barbs grip onto tubing, providing a secure hold.

Heavy Duty Check Valves
with Barbed Fittings

For more durability than plastic barbed check valves, these have a stainless steel body.

Check Valves with Yor-Lok Fittings

Two sleeves give the fittings extra gripping power. They bite into tubing as you tighten the nut to form a strong seal. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings.

Check Valves with
Push-to-Connect Fittings

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

High-Cycling Check Valves

With internal components that resist wear from frequent operation, these valves can cycle as often as once per second.

Check 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.

Check Valves with
Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

Check Valves with Barbed
Fittings for Harsh Chemicals

Barbs grip onto tubing, providing a secure hold.

Check Valves with Push-to-Connect
Fittings for Harsh Chemicals

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

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

Valves have a plastic body.

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

The metal body is more durable than plastic.

Check Valves with Solder-Connect
Fittings for Drinking Water

Solder to copper tubing for a permanent, leak-tight connection.

Check Valves with Sanitary
Quick-Clamp Fittings
for Food and Beverage

To maintain sanitary standards in food, beverage, and dairy applications, these valves have sanitary quick-clamp connections and polished internal surfaces for easy cleaning.

Insert Check Valves with
Sanitary Quick-Clamp
Fittings for Food and Beverage

These compact valves fit into standard sanitary quick-clamp fittings. All are FDA Compliant 21 CFR 177.2600 and have polished surfaces for easy cleaning.

Check Valves with Barbed
Fittings for Vacuum

Barbs grip onto tubing, providing a secure hold.

Check Valves for Refrigerant

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

Vacuum-Breaking Valves

Commonly used with irrigation systems and laboratory equipment, these valves have NPT connections.

Two-Stage Backflow-Prevention
Valves with Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

Terms and Conditions and Privacy Policy

About Backflow-Prevention Valves

Check Valves

Check Valves with Barbed Fittings

Heavy Duty Check Valveswith Barbed Fittings

Check Valves with Yor-Lok Fittings

Check Valves withPush-to-Connect Fittings

High-Cycling Check Valves

Check Valves with Quick-Turn Fittings

Check Valves withSolder-Connect Fittings

Check Valves with BarbedFittings for Harsh Chemicals

Check Valves with Push-to-ConnectFittings for Harsh Chemicals

Check Valves with Push-to-ConnectFittings for Drinking Water

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

Check Valves with Solder-ConnectFittings for Drinking Water

Check Valves with SanitaryQuick-Clamp Fittings for Food and Beverage

Insert Check Valves withSanitary Quick-Clamp Fittings for Food and Beverage

Check Valves with BarbedFittings for Vacuum

Check Valves for Refrigerant

Vacuum-Breaking Valves

Vacuum-Breaking Valves

Two-Stage Backflow-PreventionValves with Solder-Connect Fittings

Two-Stage Backflow-PreventionValves with Solder-Connect Fittings

Heavy Duty Check Valves
with Barbed Fittings

Check Valves with
Push-to-Connect Fittings

Check Valves with
Solder-Connect Fittings

Check Valves with Barbed
Fittings for Harsh Chemicals

Check Valves with Push-to-Connect
Fittings for Harsh Chemicals

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

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

Check Valves with Solder-Connect
Fittings for Drinking Water

Check Valves with Sanitary
Quick-Clamp Fittings
for Food and Beverage

Insert Check Valves with
Sanitary Quick-Clamp
Fittings for Food and Beverage

Check Valves with Barbed
Fittings for Vacuum

Two-Stage Backflow-Prevention
Valves with Solder-Connect Fittings

Two-Stage Backflow-Prevention
Valves with Solder-Connect Fittings