About Flow-Adjustment Valves
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Threaded Flow-Adjustment Valves


These valves gradually open and close to adjust and regulate flow.
Wheel handles open and close with multiple turns, providing more controlled, shock-resistant flow than lever handles.
Rising stems lift as the valve opens and lower as the valve closes to provide a visual indication of whether flow is on or off. The stem is isolated from the process media for a longer service life than valves with a nonrising stem.
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: Globe
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Specifications Met: MSS-SP-80
Wheel Handle | ||||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Port-to-Port Lg. | Stem Type | Each | |
NPT Female × NPT Female—Straight | ||||||||
1/4 | 1.2 | 200 psi @ 150° F | -20° to 405° | 1 5/8" | __ | Rising | 0000000 | 000000 |
3/8 | 2.2 | 200 psi @ 150° F | -20° to 405° | 1 13/16" | __ | Rising | 0000000 | 00000 |
1/2 | 3.6 | 200 psi @ 150° F | -20° to 405° | 2 5/16" | __ | Rising | 0000000 | 00000 |
3/4 | 6.7 | 200 psi @ 150° F | -20° to 405° | 2 9/16" | __ | Rising | 0000000 | 000000 |
1 | 11.1 | 200 psi @ 150° F | -20° to 405° | 2 15/16" | __ | Rising | 0000000 | 000000 |
1 1/4 | 20 | 200 psi @ 150° F | -20° to 405° | 3 3/8" | __ | Rising | 0000000 | 000000 |
1 1/2 | 28 | 200 psi @ 150° F | -20° to 405° | 3 11/16" | __ | Rising | 0000000 | 000000 |
2 | 48 | 200 psi @ 150° F | -20° to 405° | 4 7/16" | __ | Rising | 0000000 | 000000 |
NPT Female × NPT Female—90° Elbow | ||||||||
1/4 | 1.6 | 200 psi @ 150° F | -20° to 405° | __ | 3/4" | Rising | 0000000 | 000000 |
3/8 | 3.1 | 200 psi @ 150° F | -20° to 405° | __ | 15/16" | Rising | 0000000 | 000000 |
1/2 | 5.1 | 200 psi @ 150° F | -20° to 405° | __ | 1" | Rising | 0000000 | 000000 |
3/4 | 9.2 | 200 psi @ 150° F | -20° to 405° | __ | 1 1/4" | Rising | 0000000 | 000000 |
1 | 16 | 200 psi @ 150° F | -20° to 405° | __ | 1 7/16" | Rising | 0000000 | 000000 |
1 1/4 | 28 | 200 psi @ 150° F | -20° to 405° | __ | 1 11/16" | Rising | 0000000 | 000000 |
1 1/2 | 39 | 200 psi @ 150° F | -20° to 405° | __ | 1 13/16" | Rising | 0000000 | 000000 |
2 | 66 | 200 psi @ 150° F | -20° to 405° | __ | 2 3/16" | Rising | 0000000 | 000000 |
- Valve Type: Globe
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Specifications Met: MSS-SP-80
Wheel Handle | ||||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Port-to-Port Lg. | Stem Type | Each | |
NPT Female × NPT Female—Straight | ||||||||
1/4 | 1.2 | 300 psi @ 150° F | -20° to 405° | 2 1/16" | __ | Rising | 0000000 | 0000000 |
3/8 | 2.2 | 300 psi @ 150° F | -20° to 405° | 2 1/16" | __ | Rising | 0000000 | 000000 |
1/2 | 3.6 | 300 psi @ 150° F | -20° to 405° | 2 7/16" | __ | Rising | 0000000 | 000000 |
3/4 | 6.7 | 300 psi @ 150° F | -20° to 405° | 2 15/16" | __ | Rising | 0000000 | 000000 |
1 | 11.1 | 300 psi @ 150° F | -20° to 405° | 3 7/16" | __ | Rising | 0000000 | 000000 |
1 1/4 | 20 | 300 psi @ 150° F | -20° to 405° | 3 7/8" | __ | Rising | 0000000 | 000000 |
1 1/2 | 28 | 300 psi @ 150° F | -20° to 405° | 4 1/2" | __ | Rising | 0000000 | 000000 |
2 | 48 | 300 psi @ 150° F | -20° to 405° | 5 3/4" | __ | Rising | 0000000 | 000000 |
NPT Female × NPT Female—90° Elbow | ||||||||
1/4 | 1.6 | 300 psi @ 150° F | -20° to 405° | __ | 1 1/16" | Rising | 0000000 | 000000 |
1/2 | 5.1 | 300 psi @ 150° F | -20° to 405° | __ | 1 3/16" | Rising | 0000000 | 000000 |
3/4 | 9.2 | 300 psi @ 150° F | -20° to 405° | __ | 1 7/16" | Rising | 0000000 | 000000 |
1 | 16 | 300 psi @ 150° F | -20° to 405° | __ | 1 3/4" | Rising | 0000000 | 000000 |
1 1/4 | 28 | 300 psi @ 150° F | -20° to 405° | __ | 2 1/16" | Rising | 0000000 | 000000 |
1 1/2 | 39 | 300 psi @ 150° F | -20° to 405° | __ | 2 1/4" | Rising | 0000000 | 000000 |
2 | 66 | 300 psi @ 150° F | -20° to 405° | __ | 2 3/4" | Rising | 0000000 | 000000 |
- Valve Type: Globe
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Specifications Met: MSS-SP-80
Wheel Handle | |||||||
---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | |
NPT Female × NPT Female—Straight | |||||||
1/4 | 1.2 | 400 psi @ 150° F | -20° to 550° | 2 1/16" | Rising | 0000000 | 0000000 |
3/8 | 2.2 | 400 psi @ 150° F | -20° to 550° | 2 1/16" | Rising | 0000000 | 000000 |
1/2 | 3.6 | 400 psi @ 150° F | -20° to 550° | 2 7/16" | Rising | 0000000 | 000000 |
3/4 | 6.7 | 400 psi @ 150° F | -20° to 550° | 2 15/16" | Rising | 0000000 | 000000 |
1 | 11.1 | 400 psi @ 150° F | -20° to 550° | 3 3/4" | Rising | 0000000 | 000000 |
1 1/4 | 20 | 400 psi @ 150° F | -20° to 550° | 4 1/4" | Rising | 0000000 | 000000 |
1 1/2 | 28 | 400 psi @ 150° F | -20° to 550° | 4 3/4" | Rising | 0000000 | 000000 |
2 | 48 | 400 psi @ 150° F | -20° to 550° | 5 3/4" | Rising | 0000000 | 000000 |
- Valve Type: Globe
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Specifications Met: MSS-SP-80
Wheel Handle | ||||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Port-to-Port Lg. | Stem Type | Each | |
NPT Female × NPT Female—Straight | ||||||||
1/4 | 1.2 | 1000 psi @ 150° F | -20° to 550° | 2 1/8" | __ | Rising | 0000000 | 0000000 |
3/8 | 2.2 | 1000 psi @ 150° F | -20° to 550° | 2 3/8" | __ | Rising | 0000000 | 000000 |
1/2 | 3.6 | 1000 psi @ 150° F | -20° to 550° | 2 3/4" | __ | Rising | 0000000 | 000000 |
3/4 | 6.7 | 1000 psi @ 150° F | -20° to 550° | 3 3/16" | __ | Rising | 0000000 | 000000 |
1 | 11.1 | 1000 psi @ 150° F | -20° to 550° | 3 5/8" | __ | Rising | 0000000 | 000000 |
1 1/4 | 20 | 1000 psi @ 150° F | -20° to 550° | 4 1/8" | __ | Rising | 0000000 | 000000 |
1 1/2 | 28 | 1000 psi @ 150° F | -20° to 550° | 4 3/4" | __ | Rising | 0000000 | 000000 |
2 | 48 | 1000 psi @ 150° F | -20° to 550° | 5 1/8" | __ | Rising | 0000000 | 00000000 |
NPT Female × NPT Female—90° Elbow | ||||||||
1/4 | 1.6 | 600 psi @ 150° F | -20° to 550° | __ | 1 1/16" | Rising | 0000000 | 000000 |
3/8 | 3.1 | 600 psi @ 150° F | -20° to 550° | __ | 1 3/16" | Rising | 0000000 | 000000 |
1/2 | 5.1 | 600 psi @ 150° F | -20° to 550° | __ | 1 1/4" | Rising | 0000000 | 000000 |
3/4 | 9.2 | 600 psi @ 150° F | -20° to 550° | __ | 1 1/2" | Rising | 0000000 | 000000 |
1 | 16 | 600 psi @ 150° F | -20° to 550° | __ | 1 3/4" | Rising | 0000000 | 000000 |
1 1/4 | 28 | 600 psi @ 150° F | -20° to 550° | __ | 2 1/16" | Rising | 0000000 | 000000 |
1 1/2 | 39 | 600 psi @ 150° F | -20° to 550° | __ | 2 1/4" | Rising | 0000000 | 000000 |
2 | 66 | 600 psi @ 150° F | -20° to 550° | __ | 2 3/4" | Rising | 0000000 | 000000 |
Low-Pressure Threaded Flow-Adjustment Valves


- Valve Type: Globe
- For Use With: Water
- Specifications Met: See table
Use these valves for boiler maintenance and other low-pressure plumbing applications. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
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.
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Port-to-Port Lg. | Stem Type | Specifications Met | Each | |
Bronze Body—Straight | |||||||||
---|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||||
1/4 | Not Rated | 175 psi @ 90° F | -20° to 150° | 2" | __ | Rising | __ | 0000000 | 000000 |
3/8 | Not Rated | 175 psi @ 90° F | -20° to 150° | 2" | __ | Rising | __ | 0000000 | 00000 |
1/2 | Not Rated | 175 psi @ 90° F | -20° to 150° | 2 5/16" | __ | Rising | UL Listed | 0000000 | 00000 |
3/4 | Not Rated | 175 psi @ 90° F | -20° to 150° | 2 5/16" | __ | Rising | UL Listed | 0000000 | 00000 |
1 | Not Rated | 175 psi @ 90° F | -20° to 150° | 3 1/8" | __ | Rising | UL Listed | 0000000 | 000000 |
1 1/4 | 20 | 175 psi @ 90° F | -20° to 150° | 4 5/16" | __ | Rising | UL Listed | 000000 | 000000 |
1 1/2 | 28 | 175 psi @ 90° F | -20° to 150° | 4 11/16" | __ | Rising | UL Listed | 0000000 | 000000 |
2 | 48 | 175 psi @ 90° F | -20° to 150° | 5 5/8" | __ | Rising | UL Listed | 0000000 | 000000 |
Bronze Body—90° Elbow | |||||||||
NPT Female × NPT Female | |||||||||
1/2 | Not Rated | 175 psi @ 90° F | -20° to 150° | __ | 1 1/16" | Rising | UL Listed | 0000000 | 00000 |
3/4 | Not Rated | 175 psi @ 90° F | -20° to 150° | __ | 1 3/16" | Rising | UL Listed | 0000000 | 00000 |
1 | Not Rated | 175 psi @ 90° F | -20° to 150° | __ | 1 5/8" | Rising | UL Listed | 0000000 | 000000 |
Threaded Flow-Adjustment Valves with Garden Hose Outlet
- For Use With: Oil, Water
- Valve Type: Globe
These valves have an NPT inlet and a GHT outlet for attaching garden hose. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a nonrising stem that stays in the same position whether the valve is open or closed.
Lockouts (sold separately) thread over the valve outlet and lock in place with a padlock (not included) to prevent unauthorized water use.
For technical drawings and 3-D models, click on a part number.


Pipe Size | Hose Size | Max. Pressure | Temperature Range | Port-to-Port Lg. | Stem Type | Each | |
Brass Body | |||||||
---|---|---|---|---|---|---|---|
NPT Female × GHT Male | |||||||
1/2 | 3/4 | 125 psi @ 100° F | 40° F to 180° F | 1 1/2" | Nonrising | 0000000 | 000000 |
3/4 | 3/4 | 125 psi @ 100° F | 40° F to 180° F | 1 1/2" | Nonrising | 0000000 | 00000 |
NPT Male × GHT Male | |||||||
1/2 | 3/4 | 125 psi @ 100° F | 40° F to 180° F | 1 9/16" | Nonrising | 0000000 | 00000 |
3/4 | 3/4 | 125 psi @ 100° F | 40° F to 180° F | 1 9/16" | Nonrising | 0000000 | 00000 |
For Maximum Shackle Diameter | For Hose Size | For Thread Type | Chemical Resistance (Excellent) | Each | |
9/32" | 3/4 | GHT | Air, Water | 0000000 | 000000 |
Snap-Shut Threaded Flow-Adjustment Valves


Also known as whistle valves, these open and throttle as force is applied to the lever and automatically close upon release. They’re commonly used for spraying, washing, and other applications that require manual discharge of liquid and air. All have a nonrising stem that stays in the same position whether the valve is open or closed.
Pull-activated lever handles open the valve when you pull the handle upward. Attach a cord or chain to the hole in the handle for remote operation.
Push-activated lever handles open the valve as downward pressure is applied.
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: Globe
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
Pull-Activated Lever Handle | Push-Activated Lever Handle | |||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | Each | ||
NPT Female × NPT Female | ||||||||
1/4 | 150 psi @ 60° F | 0° to 200° | 2 3/16" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
1/4 | 400 psi @ 60° F | 0° to 200° | 2 3/16" | Nonrising | 0000000 | 00000 | 0000000 | 00000 |
3/8 | 150 psi @ 60° F | 0° to 200° | 2 3/16" | Nonrising | 0000000 | 00000 | 0000000 | 00000 |
3/8 | 400 psi @ 60° F | 0° to 200° | 2 3/16" | Nonrising | 0000000 | 00000 | 0000000 | 00000 |
1/2 | 150 psi @ 60° F | 0° to 200° | 3" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
1/2 | 400 psi @ 60° F | 0° to 200° | 3" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
3/4 | 150 psi @ 60° F | 0° to 200° | 3 1/8" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
3/4 | 400 psi @ 60° F | 0° to 200° | 3 1/8" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
1 | 150 psi @ 60° F | 0° to 200° | 4" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
1 | 400 psi @ 60° F | 0° to 200° | 4" | Nonrising | 0000000 | 000000 | 0000000 | 000000 |
- Valve Type: Globe
- For Use With: Water, Air, Argon, Helium, Krypton, Neon, Xenon
- Specifications Met: MSS-SP-80
Pull-Activated Lever Handle | |||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Pressure Class | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | |
NPT Female × NPT Female | |||||||||
1/2 | 3 | 200 | 200 psi @ 550° F | 200 psi @ 550° F | -20° to 550° | 2 1/2" | Nonrising | 000000 | 0000000 |
3/4 | 6.1 | 200 | 200 psi @ 550° F | 200 psi @ 550° F | -20° to 550° | 2 15/16" | Nonrising | 0000000 | 000000 |
1 | 10.4 | 200 | 200 psi @ 550° F | 200 psi @ 550° F | -20° to 550° | 3 7/16" | Nonrising | 0000000 | 000000 |
Flow-Adjustment Valves with Solder-Connect Fittings

- Valve Type: Globe
- For Use With: Water, Oil
Solder these valves to copper tubing for a permanent, leak-tight connection. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
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 Tube OD | Flow Coefficient (Cv) | Pressure Class | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | |
Bronze Body | ||||||||
---|---|---|---|---|---|---|---|---|
Solder Connect × Solder Connect | ||||||||
5/8" | 3.6 | 125 | 200 psi @ 150° F | -20 to 405° | 2 11/16" | Rising | 0000000 | 0000000 |
7/8" | 6.7 | 125 | 200 psi @ 150° F | -20 to 405° | 3 3/4" | Rising | 0000000 | 000000 |
1 1/8" | 11.1 | 125 | 200 psi @ 150° F | -20 to 405° | 4 5/8" | Rising | 0000000 | 000000 |
1 3/8" | 20 | 125 | 200 psi @ 150° F | -20 to 405° | 5" | Rising | 0000000 | 000000 |
1 5/8" | 28 | 125 | 200 psi @ 150° F | -20 to 405° | 5 3/4" | Rising | 0000000 | 000000 |
2 1/8" | 48 | 125 | 200 psi @ 150° F | -20 to 405° | 7" | Rising | 0000000 | 000000 |
Threaded Flow-Adjustment Valves for Cryogenic Liquid

- Valve Type: Globe
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen
- Seal Material: Glass-Filled PTFE Plastic
- Specifications Met: CGA G-4.1
Designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen, these valves are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
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.
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Overall Ht. | Stem Type | Each | |
Bronze Body | ||||||||
---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||||
1/2 | 3.3 | 600 psi @ 150° F | -325° to 150° | 2 5/8" | 8 5/16" | Rising | 00000000 | 0000000 |
3/4 | 6.3 | 400 psi @ 150° F | -325° to 150° | 3 3/16" | 10" | Rising | 00000000 | 000000 |
1 | 10 | 600 psi @ 150° F | -325° to 150° | 3 3/4" | 11 13/16" | Rising | 00000000 | 000000 |
1 1/2 | 26 | 400 psi @ 150° F | -325° to 150° | 4 3/4" | 16 1/2" | Rising | 00000000 | 000000 |
2 | 45 | 600 psi @ 150° F | -325° to 150° | 5 3/4" | 16 3/4" | Rising | 00000000 | 00000000 |
Compact Threaded Flow-Adjustment Valves for Cryogenic Liquid

- Valve Type: Globe
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen
- Specifications Met: CGA G-4.1
Often used with portable cryogenic cylinders, these valves are a third of the height of other valves for cryogenic liquid. They are designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen; all are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. These valves gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. They have a nonrising stem that stays in the same position whether the valve is open or closed.
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.
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | |
Brass Body | |||||||
---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||
1/4 | 1 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 0000000 |
3/8 | 1.8 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 000000 |
1/2 | 1.8 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 000000 |
Threaded Flow-Adjustment Valves for Fuel

- Valve Type: Globe
- For Use With: Oil, Diesel Fuel, Fuel Oil, Kerosene
- Seal Material: Fluoroelastomer Rubber
- Specifications Met: See table
To automatically shut off the flow of diesel fuel, fuel oil, kerosene, and oil in case of fire, these valves automatically close and the handle permanently fuses in place when the ambient temperature reaches 165° F. To reuse the valve, replace the handle (sold separately).
For technical drawings and 3-D models, click on a part number.
Valves | Replacement Wheel Handles | |||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Specifications Met | Each | Each | ||
Brass Body | ||||||||
NPT Female × NPT Female | ||||||||
3/8 | 10 psi @ 70° F | 20° to 165° | 1 3/4" | UL Listed | 0000000 | 000000 | 0000000 | 00000 |
1/2 | 10 psi @ 70° F | 20° to 165° | 2" | UL Listed | 0000000 | 00000 | 000000 | 00 |
3/4 | 10 psi @ 70° F | 20° to 165° | 2 1/2" | __ | 0000000 | 000000 | 0000000 | 0000 |
1 | 10 psi @ 70° F | 20° to 165° | 2 5/8" | __ | 0000000 | 000000 | 0000000 | 00000 |