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About Backflow-Prevention Valves
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About On/Off Valves
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Threaded On/Off Valves
Plated brass valves are more corrosion resistant than plain brass or bronze valves.
316 stainless steel valves have the best corrosion resistance.
Lockable handles can be fixed in place using a padlock (not included).
Full-port valves do not restrict flow.
Standard-port valves slightly restrict flow.
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.
- Valve Type: Ball
- For Use With: See table
- Seal Material: See table
- Specifications Met: See table
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating | Seal Material | Port Type | End-to-End Lg. | For Use With | Each | |
BSPP Female × BSPP Female | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 1.3 | 580 psi @ 210° F | -40° to 350° | 2 microns of Hg | PTFE Plastic | Full | 1 15/16" | Water, Oil, Air | 0000000 | 000000 |
| 3/8 | 10 | 600 psi @ 100° F | -50° to 400° | 29.9 in. of Hg | Fluoroelastomer Rubber | Full | 2 3/8" | Water, Air | 0000000 | 00000 |
| 1/2 | 46 | 600 psi @ 100° F | -50° to 400° | 29.9 in. of Hg | Fluoroelastomer Rubber | Full | 2 15/16" | Water, Air | 0000000 | 00000 |
| 3/4 | 66 | 600 psi @ 100° F | -50° to 400° | 29.9 in. of Hg | Fluoroelastomer Rubber | Full | 3 1/8" | Water, Air | 0000000 | 00000 |
| 1 | 93 | 600 psi @ 100° F | -50° to 400° | 29.9 in. of Hg | Fluoroelastomer Rubber | Full | 3 9/16" | Water, Air | 0000000 | 00000 |
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Each | |
BSPP Female × BSPP Male | |||||||
|---|---|---|---|---|---|---|---|
| 1/2 | 9.3 | 1000 psi @ 100° F | -30° to 400° | Standard | 3" | 0000000 | 000000 |
- Valve Type: Ball
- For Use With:
Full Port: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
Standard Port: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon - Seal Material: PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | For Max. Shackle Dia. | Each | |
BSPP Female × BSPP Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 1.4 | 1000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2" | 5/16" | 0000000 | 000000 |
| 3/8 | 2.6 | 1000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2 3/8" | 5/16" | 0000000 | 00000 |
| 1/2 | 9.3 | 1000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 3" | 5/16" | 0000000 | 00000 |
BSPP Female × BSPP Male | |||||||||
| 1/4 | 1.4 | 1000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2" | 5/16" | 0000000 | 00000 |
Compact Threaded On/Off Valves
Install these low-profile valves in tight spots.
Chrome-plated brass valves are more corrosion resistant than brass and bronze valves.
Short lever handles, T-handles, and screwdriver-operated handles resist accidental movement when snagged or bumped.
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.
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material: Fluoroelastomer Rubber
- Specifications Met: See table
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Specifications Met | Each | |
BSPP Female × BSPP Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 3 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 00000 |
| 1/4 | 3.5 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 0000 |
| 3/8 | 3.6 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 0000 |
| 1/2 | 4.8 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 15/16" | ISO 228 | 0000000 | 00000 |
BSPP Female × BSPP Male | ||||||||
| 1/8 | 3 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 0000 |
| 1/4 | 3.5 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 0000 |
| 3/8 | 3.6 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 0000000 | 0000 |
| 1/2 | 4.8 | 200 psi @ 100° F | 0° to 200° | 29.9 | 1 15/16" | ISO 228 | 0000000 | 00000 |
High-Pressure Threaded On/Off Valves
These valves are rated for at least three times the pressure of standard threaded valves.
316 stainless steel valves are more corrosion resistant than steel valves.
Lockable lever handles can be fixed in place using a padlock (not included).
Standard-port valves slightly restrict flow.
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.
- Valve Type: Ball
- For Use With: See table
- Seal Material: PTFE Plastic
- Specifications Met: See table
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | For Max. Shackle Dia. | For Use With | Each | |
316 Stainless Steel Body | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
NPT Female × BSPP Female | |||||||||||
| 1 1/4 | 48 | 1,500 psi @ 75° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 4" | 1/4" | Water, Oil, Argon, Helium, Krypton, Neon, Xenon, Steam | 00000000 | 0000000 |
| 1 1/2 | 84 | 1,500 psi @ 75° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 4 3/8" | 1/4" | Water, Oil, Argon, Helium, Krypton, Neon, Xenon, Steam | 00000000 | 000000 |
On/Off Valves with Push-to-Connect Fittings
Insert tubing into the fittings on these valves—no heat, solder, or flux required.
Screwdriver-operated valves resist accidental movement when snagged or bumped. They require a slotted screwdriver (not included) to open and close.
Standard-port valves slightly restrict flow.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material:
Push to Connect × Push to Connect: EPDM Rubber
BSPP Male × Push to Connect: Buna-N Rubber
| Pipe Size | For Tube OD | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
Black Nylon Plastic Body | ||||||||
|---|---|---|---|---|---|---|---|---|
BSPP Male × Push to Connect | ||||||||
| 1/8 | 6mm | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 7/16" | 0000000 | 000000 |
| 1/4 | 8mm | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 3/8" | 0000000 | 00000 |
| 3/8 | 10mm | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 7/8" | 0000000 | 00000 |
| 1/2 | 12mm | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2" | 0000000 | 00000 |
Easy-to-Install Threaded On/Off Valves for Chemicals
For fast installation and removal from pipelines, these valves have union fittings that disassemble into multiple pieces. All have a fluoroelastomer seal and a plastic body that can stand up to aggressive and corrosive solutions in chemical-processing applications.
T-handles resist accidental movement when snagged or bumped.
Full-port valves do not restrict flow.
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.
Union with T-Handle
(Assembled View)
- Valve Type: Ball
- For Use With: Carbon Dioxide, Citric Acid, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Phosphoric Acid, Propane, Salt Water, Water
- Ball Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
Valves | Union Fittings | |||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Each | Pair | ||
Threaded Union × Threaded Union with T-Handle | ||||||||
| 1 | 225 psi @ 70° F | 40° to 140° | Full | 6 9/16" | 0000000 | 000000 | 0000000 | 000000 |
| 1 1/2 | 225 psi @ 70° F | 40° to 140° | Full | 8 1/16" | 0000000 | 000000 | 0000000 | 00000 |
| 2 | 225 psi @ 70° F | 40° to 140° | Full | 8 13/16" | 0000000 | 000000 | 0000000 | 00000 |
Union with T-Handle
(Assembled View)
- Valve Type: Ball
- For Use With: Carbon Dioxide, Citric Acid, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Phosphoric Acid, Propane, Salt Water, Water
- Ball Material: CPVC Plastic
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
Valves | Union Fittings | |||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Each | Pair | ||
Threaded Union × Threaded Union with T-Handle | ||||||||
| 1 | 225 psi @ 70° F | 40° to 180° | Full | 6 9/16" | 0000000 | 0000000 | 0000000 | 000000 |
| 1 1/2 | 225 psi @ 70° F | 40° to 180° | Full | 8 1/16" | 0000000 | 000000 | 0000000 | 00000 |
| 2 | 225 psi @ 70° F | 40° to 180° | Full | 8 13/16" | 0000000 | 000000 | 0000000 | 00000 |
Easy-to-Install Plastic Threaded
On/Off Valves for Drinking Water
Disassemble the union fittings on these valves for fast installation and removal from your pipeline. They meet NSF/ANSI 61 for use with drinking water. All have a T-handle that resists accidental movement when snagged or bumped. They are full port, so they do not restrict flow.
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.
- Valve Type: Ball
- For Use With: Drinking Water
- Seal Material: EPDM Rubber
- Specifications Met: NSF/ANSI 61
Valves | Union Fittings | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | Pair | ||
Dark Gray PVC Plastic Body | |||||||||
BSPP Female × BSPP Female | |||||||||
| 1 | 97 | 225 psi @ 70° F | 40° to 140° | 26 | 6 9/16" | 0000000 | 000000 | 0000000 | 000000 |
| 1 1/2 | 285 | 225 psi @ 70° F | 40° to 140° | 26 | 8 1/16" | 0000000 | 000000 | 0000000 | 00000 |
| 2 | 540 | 225 psi @ 70° F | 40° to 140° | 26 | 8 13/16" | 0000000 | 000000 | 0000000 | 00000 |
Light Gray CPVC Plastic Body | |||||||||
BSPP Female × BSPP Female | |||||||||
| 1 | 97 | 225 psi @ 70° F | 40° to 180° | 26 | 6 9/16" | 0000000 | 000000 | 0000000 | 00000 |
| 1 1/2 | 285 | 225 psi @ 70° F | 40° to 180° | 26 | 8 1/16" | 0000000 | 000000 | 0000000 | 00000 |
| 2 | 540 | 225 psi @ 70° F | 40° to 180° | 26 | 8 13/16" | 0000000 | 000000 | 0000000 | 00000 |
Threaded Check Valves
These valves open to allow flow in one direction and close when flow stops or reverses.
316 stainless steel valves have the best corrosion resistance.
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.
- For Use With: Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon
- Spring Material: 302 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
BSPP Female × BSPP Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 1.85 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 2" | 0000000 | 000000 |
| 1/4 | 1.954 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 2" | 0000000 | 00000 |
| 3/8 | 3.48 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 2 5/8" | 0000000 | 000000 |
| 1/2 | 3.584 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 2 13/16" | 0000000 | 000000 |
| 3/4 | 6.463 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 3 5/16" | 0000000 | 000000 |
| 1 | 9.088 | 580 psi @ 350° F | 150 psi @ 212° F | 4 | 0° to 355° | 3 9/16" | 0000000 | 000000 |
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. 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.
PVC and CPVC valves come with unthreaded socket-connect female fittings in addition to the threaded NPT female fittings.
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.
- For Use With:
BSPP thread type:
Butane, Kerosene, Drinking Water, Liquid Carbon Dioxide, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Water
NPT thread type:
Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water - Ball Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Specifications Met | Each | |
BSPP Female × BSPP Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 6.3 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 4 1/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 1 | 25 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 5 3/16" | ASTM D1784, NSF/ANSI 61 | 0000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Inlet Connection | Outlet Connection | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Pipe Size | Dash Size | Max. Flow Rate, gpm | Flow Coefficient (Cv) | Max. Pressure, psi | Min. Opening Pressure, psi | Port-to-Port Lg. | Hex Wd. | Mounting Orientation | Temp. Range, °F | Each | |
Steel Body | |||||||||||||
| 1/4 | 04 | 1/4 | 04 | 6 | 1.47 | 5,000 | 2.5 | 2" | 3/4" | Any Position | -30° to 200° | 000000 | 000000 |
| 3/8 | 06 | 3/8 | 06 | 10 | 3.3 | 5,000 | 2.5 | 2 1/2" | 1" | Any Position | -30° to 200° | 000000 | 00000 |
| 1/2 | 08 | 1/2 | 08 | 12 | 3.6 | 5,000 | 2.5 | 2 7/8" | 1 1/8" | Any Position | -30° to 200° | 000000 | 00000 |
| 3/4 | 12 | 3/4 | 12 | 20 | 5.41 | 5,000 | 2.5 | 3 1/4" | 1 3/8" | Any Position | -30° to 200° | 000000 | 00000 |
Industrial Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.
Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.
Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
For Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Specifications Met | Each | |
Brass | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |