About Gradual On/Off Valves
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About On/Off Valves
More
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.
Lockable handles can be fixed in place using a padlock (not included).
Short-lever handles and T-handles resist accidental movement when snagged or bumped.
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
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" | 0000000 | 000000 |
3/4 | 1/4 | Female | NPT | 48.5 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 3/4" | 0000000 | 00000 |
1 | 1/4 | Female | NPT | 80.9 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/16" | 0000000 | 00000 |
1 1/4 | 1/4 | Female | NPT | 92.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/8" | 0000000 | 00000 |
1 1/2 | 1/4 | Female | NPT | 144.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 4 1/4" | 0000000 | 00000 |
2 | 1/4 | Female | NPT | 206.8 | 600 psi @ 100° F | -40° to 350° | 29.9 | 5" | 0000000 | 000000 |

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 |

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. | For Max. Shackle Dia. | 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" | 9/32" | 00000000 | 000000 |
3/4 | 1/4 | Female | NPT | 48.5 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 3/4" | 9/32" | 00000000 | 00000 |
1 | 1/4 | Female | NPT | 80.9 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/16" | 9/32" | 00000000 | 00000 |
1 1/4 | 1/4 | Female | NPT | 92.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/8" | 9/32" | 00000000 | 00000 |
1 1/2 | 1/4 | Female | NPT | 144.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 4 1/4" | 9/32" | 00000000 | 00000 |
2 | 1/4 | Female | NPT | 206.8 | 600 psi @ 100° F | -40° to 350° | 29.9 | 5" | 9/32" | 00000000 | 000000 |

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 |
1 1/4 | 1/4 | Female | NPT | 92.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/8" | 00000000 | 00000 |
1 1/2 | 1/4 | Female | NPT | 144.4 | 600 psi @ 100° F | -40° to 350° | 29.9 | 4 1/4" | 00000000 | 00000 |
2 | 1/4 | Female | NPT | 206.8 | 600 psi @ 100° F | -40° to 350° | 29.9 | 5" | 00000000 | 000000 |

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. | For Max. Shackle Dia. | 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" | 9/32" | 00000000 | 000000 |
3/4 | 1/4 | Female | NPT | 48.5 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 3/4" | 9/32" | 00000000 | 00000 |
1 | 1/4 | Female | NPT | 80.9 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/16" | 9/32" | 00000000 | 00000 |