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About Flow-Adjustment Valves
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Low-Pressure Threaded Flow-Adjustment Valves
Straight
90° Elbow
- 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 |