About Precision Flow-Adjustment Valves
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Precision Flow-Adjustment Valves with Compression Fittings
The compression sleeve on these valves bites into tubing as you tighten the nut, forming a strong seal. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. All have metal-to-metal seats that resist temperature fluctuations.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Needle
- For Use With: Air
- Seal Material: Neoprene Rubber
Precision Flow-Adjustment Valves with 45° Flared Compression Fittings
- Valve Type: Needle
- For Use With: Air
- Seal Material: Neoprene Rubber
With 45° flared tube fittings, these valves form a tight seal on metal tubing. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. All valves have metal-to-metal seats that resist temperature fluctuations.
For technical drawings and 3-D models, click on a part number.
Threaded Precision Flow-Adjustment Valves for Fuel
- Valve Type: Needle
- For Use With: Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Propane
- Seal Material: Fluorocarbon Rubber
Turn the handle to adjust the flow of butane, diesel fuel, fuel oil, gasoline, kerosene, natural gas, and propane in small increments. These valves have metal-to-metal seats that resist temperature fluctuations.
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.
Precision Flow-Adjustment Valves with Barbed Fittings for Fuel
- Valve Type: Needle
- For Use With: See Table
- Seal Material: See Table
Add fine flow control to tubing lines for butane, diesel fuel, fuel oil, gasoline, kerosene, natural gas, and propane. These valves have a barbed fitting that grips onto tubing, providing a secure hold. Turn the handle to adjust flow in small increments. Valves have metal-to-metal seats that resist temperature fluctuations.
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 ID | Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Seal Material | Port-to-Port Lg. | For Use With | Each | |
Brass Body | |||||||||
|---|---|---|---|---|---|---|---|---|---|
NPTF Male × Barbed | |||||||||
| 3/8" | 3/8 | 1.5 | 200 psi @ 70° F | -10° to 400° | Buna-N Rubber | 1 1/8" | Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Propane | 00000000 | 000000 |
| 5/8" | 3/8 | 2.9 | 200 psi @ 70° F | -30° to 225° | Fluorocarbon Rubber | 1 5/16" | Oil, Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Propane | 00000000 | 00000 |
| 5/8" | 1/2 | 4.4 | 200 psi @ 70° F | -10° to 400° | Buna-N Rubber | 1 1/2" | Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Propane | 00000000 | 00000 |
| 3/4" | 1/2 | 5.5 | 200 psi @ 70° F | -10° to 400° | Fluorocarbon Rubber | 1 7/16" | Oil, Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Propane | 00000000 | 00000 |