Stainless Steel Check Valves

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	Body Material Body Material

316 Stainless Steel

303 Stainless Steel

304 Stainless Steel

	Pipe Size Pipe Size

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

	Thread Type Thread Type

	Connection Style Connection Style

	Threaded
	Barbed
	Flanged
	Socket Connect
	Yor-Lok
	Quick Clamp
	Butt Weld

	For Use With For Use With

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

Any Position

	Maximum Pressure Maximum Pressure

	Gender Gender

Female

Male

	Seal Material Seal Material

Rubber

Plastic

Stainless Steel

	Minimum Opening Pressure Minimum Opening Pressure

	Connection Type Connection Type


Pipe	Tube

	Valve Type Valve Type

Check

Vacuum Breaker

	Shape Shape

	Straight

	Spring Material Spring Material

302 Stainless Steel

316 Stainless Steel

304 Stainless Steel

	Valve Function Valve Function

Backflow Prevention

	Piston Material Piston Material

Stainless Steel

Rubber

	Type Type

Connector

Adapter

Insert

	Actuation Actuation

Pressure

Vacuum

	Check Valve Type Check Valve Type

	Maximum Temperature Maximum Temperature

	Flow Coefficient (Cv) Flow Coefficient (Cv)

0.081
0.1
0.19
0.2
0.23
0.47
0.5
0.54
0.56
0.6
0.83
0.85
1.1
1.21
1.31
1.4
1.47
1.68
1.85
1.9
1.954
2.2
2.3
2.4
3.1
3.3
3.48
3.5
3.584
3.6
3.8
3.9
4.2
4.3
4.4
4.48
4.6
4.78
5
5.41
5.5
6
6.1
6.463
6.6
7
7.4
8
9
9.088
9.5
11.2
11.9
12
12.7
16
17
18.8
19
20.9
30
32
33.3
37
42.5
44
48
49
52
63
65
72
77.9
81
89
90
130
141
144
156
171
280
291
390
705
1,795
Not Rated

	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

	System of Measurement System of Measurement

211 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.

High-Flow Threaded Check Valves

To achieve the maximum possible flow, internal components are designed to reduce flow resistance.

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.

High-Temperature Threaded Check Valves

The heat-resistant rubber seal withstands temperatures up to 500° F.

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.

Compact Flange-Mount Check Valves

Less than half the end-to-end length of standard flange-mount check valves, these can be installed in pipelines with limited clearance.

Socket-Connect Check Valves

Weld to unthreaded metal pipe.

Butt-Weld Check Valves

Weld these valves to unthreaded pipe for a smooth, flush connection that provides maximum flow.

Union-Insert Check Valves

To reduce installation time and allow for maintenance without detaching pipe connections, these valves insert into a union fitting.

Threaded Check Valves for Oil and Fuel

Flange-Mount Check Valves for Oil and Fuel

Install these valves between ANSI flanges.

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 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.

Vacuum-Breaking Valves

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

High-Pressure Vacuum-Breaking Valves

Rated for 12 times the pressure of standard vacuum-breaking valves, these can handle up to 1,500 psi. Connections are NPT.

Electric-, Air-, and Hydraulic-Powered Motion Control

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.

Air Flow Check Valves

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

About Backflow-Prevention Valves

Check Valves

Threaded Check Valves

Compact Threaded Check Valves

High-Flow Threaded Check Valves

High-Pressure Threaded Check Valves

High-Temperature Threaded Check Valves

Heavy Duty Check Valves with Barbed Fittings

Check Valves with Yor-Lok Fittings

Compact Flange-Mount Check Valves

Socket-Connect Check Valves

Butt-Weld Check Valves

Union-Insert Check Valves

Threaded Check Valves for Oil and Fuel

Flange-Mount Check Valves for Oil and Fuel

Check Valves with Sanitary Quick-ClampFittings for Food and Beverage

Insert Check Valves with SanitaryQuick-Clamp Fittings for Food and Beverage

Check Valves for Steam

Vacuum-Breaking Valves

Vacuum-Breaking Valves

High-Pressure Vacuum-Breaking Valves

Electric-, Air-, and Hydraulic-Powered Motion Control

Backflow-Prevention Inline Hydraulic Valves

Air Flow Check Valves

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

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