Check Valves for Deionized Water

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Deionized Water

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Warning: Products have one, but not necessarily all, of the selected characteristics.

	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

NPT

NPTF

	Connection Style Connection Style

	Threaded
	Barbed
	Flanged
	Push to Connect
	Socket Connect

	Body Material Body Material

CPVC Plastic

Glass-Filled Vinyl Plastic

Nylon Plastic

Polypropylene Plastic

PVC Plastic

PVDF Plastic

	Minimum Opening Pressure Minimum Opening Pressure

	Check Valve Type Check Valve Type

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

Any Position

	Maximum Pressure Maximum Pressure

	Connection Type Connection Type


Pipe	Tube

	Shape Shape

	Straight

	Valve Type Valve Type

Check

	Color Color

	White
	Dark Gray
	Black
	Clear
	Light Gray
	Tan
	Black/Green
	Black/Blue
	Black/Red

	Valve Function Valve Function

Backflow Prevention

	Gender Gender

Female

Male

	Ball Material Ball Material

Stainless Steel

Plastic

	Actuation Actuation

Pressure

	System of Measurement System of Measurement

Inch

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

	For Tube ID For Tube ID

1/8"

3/16"

1/4"

	Maximum Temperature Maximum Temperature

Less than 250° F

250° to 299° F

	Connection Connection

Inlet

Outlet

	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

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47 Products

About Backflow-Prevention Valves

Threaded Check Valves for Harsh Chemicals

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

Valves for drinking water meet NSF/ANSI Standard 61.

Polypropylene valves are more corrosion resistant than PVC or CPVC valves.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

For technical drawings and 3-D models, click on a part number.

PVDF Plastic Body—Spring-Loaded Ball

For Use With: Air, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide, Toluene, Water, Xylene
Ball Material: 316 Stainless Steel
Spring Material: 316 Stainless Steel
Seal Material: Fluoroelastomer Rubber

NPT Male × NPT Male
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/8	Not Rated	220 psi @ 70° F	2.5	40° to 180°	White	1"	00000000	000000
1/4	Not Rated	220 psi @ 70° F	2.5	40° to 180°	White	1 7/16"	00000000	00000
3/8	Not Rated	220 psi @ 70° F	2.5	40° to 180°	White	1 1/2"	00000000	00000
1/2	Not Rated	220 psi @ 70° F	2.5	40° to 180°	White	1 13/16"	00000000	00000

PVC Plastic Body—Ball

For Use With: Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Ethanol, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Mineral Spirits, Natural Gas, Oil, Oxygen, Phosphoric Acid, Potable Water, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Water
Ball Material: PVC Plastic
Seal Material: Fluoroelastomer Rubber

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.	Specifications Met		Each
1/4	1	150 psi @ 70° F	1.5	35° to 140°	Dark Gray	3"	ASTM D1784, NSF/ANSI 61	0000000	000000
3/8	3	150 psi @ 70° F	1.5	35° to 140°	Dark Gray	3"	ASTM D1784, NSF/ANSI 61	0000000	00000
3	250	150 psi @ 70° F	1.5	35° to 140°	Dark Gray	10 9/16"	ASTM D1784, NSF/ANSI 61	0000000	000000
4	400	150 psi @ 70° F	1.5	35° to 140°	Dark Gray	12 15/16"	ASTM D1784, NSF/ANSI 61	0000000	000000

CPVC Plastic Body—Ball

For Use With: Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Potable Water, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Sulfuric Acid, Water
Ball Material: CPVC Plastic
Seal Material: Fluoroelastomer Rubber

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.	Specifications Met		Each
3	250	150 psi @ 70° F	1.5	35° to 190°	Dark Gray	10 9/16"	ASTM D1784, NSF/ANSI 61	0000000	0000000
4	400	150 psi @ 70° F	1.5	35° to 190°	Dark Gray	12 15/16"	ASTM D1784, NSF/ANSI 61	0000000	000000

Polypropylene Plastic Body—Ball

For Use With: Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Drinking Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol, Natural Gas, Oil, Oxygen, Phosphoric Acid, Potable Water, Salt Water, Soap Solutions, Sodium Hydroxide, Water
Ball Material: Polypropylene Plastic
Seal Material: Fluoroelastomer Rubber

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.	Specifications Met		Each
1/2	4.8	150 psi @ 70° F	1.5	35° to 200°	White	4 5/8"	ASTM D4101, NSF/ANSI 61	0000000	000000
3/4	7.7	150 psi @ 70° F	1.5	35° to 200°	White	4 3/4"	ASTM D4101, NSF/ANSI 61	0000000	000000
1	11	150 psi @ 70° F	1.5	35° to 200°	White	5 1/4"	ASTM D4101, NSF/ANSI 61	0000000	000000
1 1/2	45	150 psi @ 70° F	1.5	35° to 200°	White	6 3/4"	ASTM D4101, NSF/ANSI 61	0000000	000000
2	130	150 psi @ 70° F	1.5	35° to 200°	White	8"	ASTM D4101, NSF/ANSI 61	0000000	000000

Check Valves with Barbed Fittings for Harsh Chemicals

Diaphragm Check Valve

Spring-Loaded Ball Check Valve

Prevent backflow in chemical tubing lines. These valves have barbed fittings that grip onto tubing, providing a secure hold. The plastic body and fluoroelastomer seal provide excellent chemical resistance. Valves open to allow flow in one direction and close when flow stops or reverses.

PVDF valve resists abrasion and UV light.

Polypropylene valves are more corrosion resistant than nylon valves.

Nylon valves are more impact resistant than polypropylene valves.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

For technical drawings and 3-D models, click on a part number.

PVDF Plastic Body—Diaphragm

For Use With: Air, Butane, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Hydrochloric Acid, Nitric Acid, Oil, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite, Sulfuric Acid, Water
Diaphragm Material: Fluoroelastomer Rubber
Seal Material: Fluoroelastomer Rubber

Barbed × Barbed
For Tube ID	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/4"	15 psi @ 70° F	0.5	-20° to 250°	White	1 21/32"	00000000	00000

Polypropylene Plastic Body—Spring-Loaded Ball

For Use With: Acetone, Air, Argon, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Kerosene, Krypton, Mineral Spirits, Neon, Nitrogen, Oil, Propane, Salt Water, Soap Solutions, Toluene, Water, Xenon, Xylene
Ball Material: 316 Stainless Steel
Spring Material: 302 Stainless Steel
Seal Material: Fluoroelastomer Rubber

Barbed × Barbed
For Tube ID	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/8"	0.1	125 psi @ 70° F	1	30° to 140°	White	1 3/8"	0000000	00000
3/16"	0.2	125 psi @ 70° F	1	30° to 140°	White	1 3/4"	0000000	0000
1/4"	0.3	125 psi @ 70° F	1	30° to 140°	White	2 1/16"	0000000	0000

Nylon Plastic Body—Spring-Loaded Ball

For Use With: Acetone, Air, Argon, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Kerosene, Krypton, Mineral Spirits, Neon, Nitrogen, Oil, Propane, Salt Water, Soap Solutions, Toluene, Water, Xenon, Xylene
Ball Material: 316 Stainless Steel
Spring Material: 302 Stainless Steel
Seal Material: Fluoroelastomer Rubber

Barbed × Barbed
For Tube ID	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/8"	0.1	125 psi @ 70° F	1	35° to 140°	White	1 3/8"	0000000	00000
3/16"	0.2	125 psi @ 70° F	1	35° to 140°	White	1 3/4"	0000000	0000
1/4"	0.3	125 psi @ 70° F	1	35° to 140°	White	2 1/16"	0000000	0000

Socket-Connect Check Valves for Harsh Chemicals

Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves have a plastic body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

For technical drawings and 3-D models, click on a part number.

PVC Plastic Body

For Use With: Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
Piston Material: PVC Plastic
Spring Material: PVC Plastic
Seal Material: Fluoroelastomer Rubber

Socket Connect × Socket Connect
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/2	40, 80	0.8	150 psi @ 70° F	2	40° to 140°	Dark Gray	3 3/8"	000000	000000
3/4	40, 80	3	150 psi @ 70° F	2	40° to 140°	Dark Gray	4 3/16"	000000	000000
1	40, 80	9	150 psi @ 70° F	2	40° to 140°	Dark Gray	5 3/16"	000000	000000
1 1/4	40, 80	26	150 psi @ 70° F	2	40° to 140°	Dark Gray	6 5/8"	000000	000000
1 1/2	40, 80	45	150 psi @ 70° F	2	40° to 140°	Dark Gray	6 5/8"	000000	000000
2	40, 80	65	150 psi @ 70° F	2	40° to 140°	Dark Gray	7 5/8"	000000	000000

CPVC Plastic Body

For Use With: Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
Piston Material: CPVC Plastic
Spring Material: CPVC Plastic
Seal Material: Fluoroelastomer Rubber

Socket Connect × Socket Connect
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
1/2	40, 80	0.8	150 psi @ 70° F	2	40° to 190°	Light Gray	3 3/8"	0000000	0000000
3/4	40, 80	3	150 psi @ 70° F	2	40° to 190°	Light Gray	4 3/16"	0000000	000000
1	40, 80	9	150 psi @ 70° F	2	40° to 190°	Light Gray	5 3/16"	0000000	000000
1 1/4	40, 80	26	150 psi @ 70° F	2	40° to 190°	Light Gray	6 5/8"	0000000	000000
1 1/2	40, 80	45	150 psi @ 70° F	2	40° to 190°	Light Gray	6 5/8"	0000000	000000
2	40, 80	65	150 psi @ 70° F	2	40° to 190°	Light Gray	7 5/8"	0000000	000000

Clear-View Socket-Connect Check Valves for Harsh Chemicals

For Use With: Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Methanol, Nitric Acid, Phosphoric Acid, Salt Water, Sulfuric Acid, Water
Piston Material: PVC Plastic
Seal Material: Fluoroelastomer Rubber

Visually inspect flow and debris accumulation through the transparent valve body. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. Valves have a PVC body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

For technical drawings and 3-D models, click on a part number.

PVC Plastic Body
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.	Features		Each
Socket Connect × Socket Connect
1/2	40, 80	6.7	150 psi @ 70° F	0.29	35° to 140°	Clear	5 5/8"	Removable Cap	0000000	000000
3/4	40, 80	11.9	150 psi @ 70° F	0.29	35° to 140°	Clear	6 5/16"	Removable Cap	0000000	00000
1	40, 80	21	150 psi @ 70° F	0.29	35° to 140°	Clear	6 7/8"	Removable Cap	0000000	00000

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

For Use With: Air, Argon, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite, Sulfuric Acid, Toluene, Water, Xenon, Xylene
Piston Material: PVDF Plastic
Spring Material: Stainless Steel
Seal Material: Fluoroelastomer Rubber

Connect your outlet tubing into the push-to-connect fittings—no heat, solder, or flux required. These valves have a PVDF body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses.

For technical drawings and 3-D models, click on a part number.

PVDF Plastic Body
Pipe Size	For Tube OD	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.		Each
NPTF Male Inlet × Push-to-Connect Outlet
1/4	3/8"	300 psi @ 70° F	0.5	0° to 250°	Black	1 3/8"	0000000	000000
1/4	3/8"	300 psi @ 70° F	1.5	0° to 250°	Black/Blue	1 3/8"	0000000	00000
1/4	3/8"	300 psi @ 70° F	3	0° to 250°	Black/Red	1 3/8"	0000000	00000
1/4	3/8"	300 psi @ 70° F	4	0° to 250°	Black/Green	1 3/8"	0000000	00000

Flanged Check Valves for Harsh Chemicals

For Use With: Ammonia, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Oil, Phosphoric Acid, Salt Water, Soap Solutions, Toluene, Water, Xylene
Ball Material: PTFE Plastic
Seal Material: PTFE Plastic

Bolt these valves to ANSI flanges. The glass-filled vinyl body and PTFE seal stand up to a wide range of harsh chemicals. Valves open to allow flow in one direction and close when flow stops or reverses.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

Glass-Filled Vinyl Plastic Body
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Min. Opening Pressure, psi	Temperature Range, °F	Color	End-to-End Lg.	For Flange Class	Flange OD	Number of Bolt Holes	Bolt Hole Size	Bolt Circle Dia.	Bolts Included		Each
Flanged × Flanged
1	35	210 psi @ 250 ° F	1	-40° to 250°	Tan	5"	150	4 1/4"	4	5/8"	3 1/8"	No	000000	0000000
1 1/2	48	210 psi @ 250 ° F	1	-40° to 250°	Tan	6 1/2"	150	5"	4	5/8"	3 7/8"	No	000000	000000
2	54	140 psi @ 250 ° F	1	-40° to 250°	Tan	7"	150	6"	4	3/4"	4 3/4"	No	000000	000000
3	163	140 psi @ 250 ° F	1	-40° to 250°	Tan	8"	150	7 1/2"	4	3/4"	6"	No	000000	00000000
4	288	110 psi @ 250 ° F	1	-40° to 250°	Tan	9"	150	9"	8	3/4"	7 1/2"	No	000000	00000000
6	495	110 psi @ 250 ° F	1	-40° to 250°	Tan	10 1/2"	150	11"	8	7/8"	9 1/2"	No	000000	00000000