About Gradual On/Off Valves
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About On/Off Valves
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Threaded On/Off Valves
Use these valves in general purpose applications such as those with water, oil, air, and inert gas.
Short lever handles, lockable oval handles, and 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.
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
- Seal Material: PTFE Plastic
- Specifications Met: C-UL Listed, CSA Certified, CSA-US Certified, FM Approved, UL Listed
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Male | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 6.5 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 1/4" | 00000000 | 000000 |
| 3/8 | 10 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 1/4" | 00000000 | 00000 |
| 1/2 | 46 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 3/4" | 00000000 | 00000 |
| 3/4 | 66 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 3" | 00000000 | 00000 |
| 1 | 93 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 3 5/8" | 00000000 | 00000 |
| 1 1/4 | 130 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 4 3/16" | 00000000 | 00000 |
| 1 1/2 | 290 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 4 7/16" | 00000000 | 00000 |
| 2 | 420 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 5 1/4" | 00000000 | 000000 |
Threaded On/Off Valves with Gauge Port
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material: Fluoroelastomer Rubber
- Specifications Met: C-UL Listed, CSA Certified, CSA-US Certified, UL Listed
Attach a gauge to the side port on these valves to monitor pressure, temperature, and other measurements in your line. The port can also be used to drain and divert liquid. These valves are full port, so they do not restrict flow.
Lever handles are easy to open and close—they give you the most leverage of any handle type.
Short-lever handles and T-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.
For technical drawings and 3-D models, click on a part number.
Gauge Port | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pipe Size | Gender | Thread Type | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
NPT Female × NPT Female | ||||||||||
| 1/2 | 1/4 | Female | NPT | 32.3 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 9/16" | 00000000 | 000000 |
| 3/4 | 1/4 | Female | NPT | 48.5 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 3/4" | 00000000 | 00000 |
| 1 | 1/4 | Female | NPT | 80.9 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/16" | 00000000 | 00000 |
High-Pressure Compact Threaded On/Off Valves
These valves handle twice the pressure of other compact valves. Install them in tight spots, such as where pipelines are crowded together. They’re roughly half the height and length of standard threaded valves.
Brass valves resist corrosion better than steel valves. 316 stainless steel valves resist corrosion better than brass and steel valves.
Lever handles are easy to open and close—they give you the most leverage of any handle type. 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: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 × 1/8 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 7/8" | 0000000 | 000000 |
| 1/8 × 1/4 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2" | 00000000 | 00000 |
| 1/4 × 1/4 | 1.5 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 15/16" | 0000000 | 00000 |
NPT Female × NPT Male | ||||||||
| 1/8 × 1/8 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 7/8" | 0000000 | 00000 |
| 1/8 × 1/4 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 15/16" | 00000000 | 00000 |
| 1/8 × 3/8 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 15/16" | 00000000 | 00000 |
| 1/4 × 1/4 | 1.5 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 15/16" | 0000000 | 00000 |
| 1/4 × 3/8 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2" | 00000000 | 00000 |
| 3/8 × 3/8 | 1.5 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2" | 00000000 | 00000 |
NPT Male × NPT Male | ||||||||
| 1/8 × 1/8 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 1 15/16" | 0000000 | 00000 |
| 1/8 × 1/4 | 1.3 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2" | 00000000 | 00000 |
| 1/4 × 1/4 | 1.5 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2 1/16" | 0000000 | 00000 |
| 3/8 × 3/8 | 1.5 | 1000 psi @ 70° F | -15° to 300° | 29 | Full | 2 1/4" | 00000000 | 00000 |
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material: Buna-N Rubber
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 × 1/8 | 6 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 000000 |
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 00000 |
| 3/8 × 3/8 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 00000 |
| 1/2 × 1/2 | 15 | 800 psi @ 100° F | 0° to 370° | 29.9 | Standard | 2 1/8" | 000000000 | 00000 |
NPT Female × NPT Male | ||||||||
| 1/8 × 1/8 | 6 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 00000 |
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 00000 |
| 3/8 × 3/8 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 1 13/16" | 000000000 | 00000 |
| 1/2 × 1/2 | 15 | 800 psi @ 100° F | 0° to 370° | 29.9 | Standard | 2 1/4" | 000000000 | 00000 |
Compact Threaded On/Off Valves
Install these valves in tight spots, such as where pipelines are crowded together. They’re less than half as long as standard threaded valves and one-third shorter in height.
Chrome-plated brass valves are more corrosion resistant than plain brass and bronze valves. Short-lever handles and T-handles resist accidental movement when snagged or bumped. Lever handles are easy to open and close—they give you the most leverage of any handle type.
Valves with threaded outlets can connect to pipe or hose, giving you more control over where your fluid flows than valves with a drain or spout outlet.
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: 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 | |
NPT Female × NPT Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 3 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 0000000 | 00000 |
| 1/4 | 3.5 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 0000000 | 0000 |
| 3/8 | 3.6 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 0000000 | 0000 |
| 1/2 | 4.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/8" | __ | 0000000 | 0000 |
NPT Female × NPT Male | ||||||||
| 1/8 | 3 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 000000 | 0000 |
| 1/4 | 3.5 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 000000 | 0000 |
| 3/8 | 3.6 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | __ | 000000 | 0000 |
| 1/2 | 4.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/8" | __ | 000000 | 0000 |
BSPP Female × BSPP Female | ||||||||
| 1/8 | 2 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 1/4 | 4.9 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 3/8 | 4.2 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 1/2 | 5.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/16" | ISO 228 | 00000000 | 00000 |
BSPP Female × BSPP Male | ||||||||
| 1/8 | 2 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 1/4 | 4.9 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 3/8 | 4.2 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | ISO 228 | 00000000 | 0000 |
| 1/2 | 5.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/16" | ISO 228 | 00000000 | 00000 |
Easy-to-Install Plastic Threaded On/Off Valves
A threaded union on these valves makes them easy to install and remove without disrupting your line. They’re a good choice for lines that require frequent maintenance or cleaning. They thread together or apart with only a turn to the union fitting, unlike other threaded on/off valves that require repositioning your pipe or valve. The union fitting slides over your pipe, and the threaded fitting sits inside. With a full port, these valves won’t restrict flow.
Made of plastic, they last longer than metal valves since the inside won’t corrode or pit. They’re also lighter in weight. Polypropylene valves are our most flexible option, so they’re best at handling movement and vibration without cracking.
Valves with a short lever handle are smaller than valves with a T-handle, so they’re better for low-clearance lines.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Ball
- For Use With: Water, Citric Acid, Ethylene Glycol, Isopropyl Alcohol, Salt Water
- Seal Material: EPDM Rubber
| Pipe Size | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Each | |
Black Polypropylene Plastic Body | ||||||
|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||
| 1/2 | 300 psi @ 70° F | 0° to 150° | Full | 3 1/16" | 00000000 | 000000 |
| 3/4 | 300 psi @ 70° F | 0° to 150° | Full | 3 1/16" | 00000000 | 00000 |
| 1 | 300 psi @ 70° F | 0° to 150° | Full | 3 3/8" | 00000000 | 00000 |
| 1 1/4 | 225 psi @ 70° F | 0° to 150° | Full | 4 3/4" | 00000000 | 00000 |
| 1 1/2 | 200 psi @ 70° F | 0° to 150° | Full | 4 3/4" | 00000000 | 00000 |
| 2 | 300 psi @ 70° F | 0° to 150° | Full | 5 13/16" | 00000000 | 00000 |
Flanged On/Off Valves for Chemicals
Bolt these valves to ANSI flanges—they meet ASME dimensional standards. They have a plastic body and a seal that withstand aggressive and corrosive solutions in chemical-processing applications.
PVC valves are the standard choice for most mild chemical processing systems. CPVC valves withstand higher temperatures than PVC valves, so they work well with systems that connect to a heater. Valves with a short lever handle are good for low-clearance lines because their lever takes up less space. Valves with flanged unions are easy to install and remove without disturbing your piping, making them ideal for lines that need frequent maintenance or cleaning. Bolt the flanged fitting to the pipe flange. Install and remove the valve by turning the union fitting.
Full-port valves do not restrict flow. Valves with a vented ball prevent pressure buildup from gases emitted by harsh chemicals, such as hydrochloric acid.
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: Hydrochloric Acid, Isopropyl Alcohol, Water
- Ball Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
- For Flange Specifications Met: ASME B16.5
Bolts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | Circle Dia. | No. of Holes | Hole Dia. | Included | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Features | Each | |
Flanged Union × Flanged Union | ||||||||||||||
| 1/2 | 3 1/2" | 2 3/8" | 4 | 5/8" | No | 6 | 150 psi @ 100° F | 40° to 140° | 27 | Full | 6 5/16" | Vented Ball | 00000000 | 000000 |
| 3/4 | 3 7/8" | 2 3/4" | 4 | 5/8" | No | 38 | 150 psi @ 100° F | 40° to 140° | 27 | Full | 7 3/8" | Vented Ball | 00000000 | 00000 |
| 1 | 4 1/4" | 3 1/8" | 4 | 5/8" | No | 58 | 150 psi @ 100° F | 40° to 140° | 27 | Full | 8 3/16" | Vented Ball | 00000000 | 00000 |
| 1 1/2 | 5" | 3 7/8" | 4 | 5/8" | No | 117 | 150 psi @ 100° F | 40° to 140° | 27 | Full | 10 1/16" | Vented Ball | 00000000 | 000000 |
| 2 | 6" | 4 3/4" | 4 | 3/4" | No | 178 | 150 psi @ 100° F | 40° to 140° | 27 | Full | 11 1/2" | Vented Ball | 00000000 | 000000 |
- Valve Type: Ball
- For Use With: Hydrochloric Acid, Water
- Ball Material: CPVC Plastic
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
- For Flange Specifications Met: ASME B16.5
Bolts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | Circle Dia. | No. of Holes | Hole Dia. | Included | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Features | Each | |
Flanged Union × Flanged Union | ||||||||||||||
| 1/2 | 3 1/2" | 2 3/8" | 4 | 5/8" | No | 6 | 250 psi @ 100° F | 40° to 210° | 27 | Full | 6 5/16" | Vented Ball | 00000000 | 000000 |
| 3/4 | 3 7/8" | 2 3/4" | 4 | 5/8" | No | 38 | 250 psi @ 100° F | 40° to 210° | 27 | Full | 7 3/8" | Vented Ball | 00000000 | 000000 |
| 1 | 4 1/4" | 3 1/8" | 4 | 5/8" | No | 58 | 250 psi @ 100° F | 40° to 210° | 27 | Full | 8 3/16" | Vented Ball | 00000000 | 000000 |
| 1 1/2 | 5" | 3 7/8" | 4 | 5/8" | No | 117 | 250 psi @ 100° F | 40° to 210° | 27 | Full | 10 1/16" | Vented Ball | 00000000 | 000000 |
| 2 | 6" | 4 3/4" | 4 | 3/4" | No | 178 | 250 psi @ 100° F | 40° to 210° | 27 | Full | 11 1/2" | Vented Ball | 00000000 | 000000 |