Connection Style Connection Style |
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| Threaded | Compression |
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| Flared | Barbed |
For Use With For Use With |
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Shape Shape |
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Needle Material Needle Material |
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Valve Function Valve Function |
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Maximum Pressure Maximum Pressure |
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Seal Material Seal Material |
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Flow Coefficient (Cv) Flow Coefficient (Cv) |
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Valve Operation Valve Operation |
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End-to-End Length End-to-End Length |
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Overall Height Overall Height |
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Overall Length Overall Length |
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Packing Material Packing Material |
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Flow Control Flow Control |
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About Precision Flow-Adjustment Valves
More
Threaded Precision Flow-Adjustment Valves
Also known as needle valves, these adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Turn the handle to adjust flow. All valves have metal-to-metal seats that resist temperature fluctuations.
Locking handles have a nut to prevent accidental flow adjustment.
Internal check valves actuate when the pressure changes to stop flow from the controlled direction and allow free flow in the opposite direction. Valves with an internal check valve are often used to control the speed of air cylinders and air-powered motors.
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: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Seal Material: Fluoroelastomer Rubber/PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Brass Body with Locking Knob Handle | ||||||
|---|---|---|---|---|---|---|
| 1/8 | 0.2 | 2000 psi @ 400° F | -15° to 400° | 1 1/2" | 0000000 | 000000 |
| 1/4 | 0.43 | 2000 psi @ 400° F | -15° to 400° | 2" | 0000000 | 00000 |
| 3/8 | 0.78 | 2000 psi @ 400° F | -15° to 400° | 2 1/4" | 0000000 | 00000 |
| 1/2 | 1.24 | 2000 psi @ 400° F | -15° to 400° | 2 11/16" | 0000000 | 00000 |
| 3/4 | 1.93 | 2000 psi @ 400° F | -15° to 400° | 2 15/16" | 0000000 | 00000 |
Brass Body with Locking Knob Handle and Internal Check Valve | ||||||
| 1/8 | 0.23 | 2000 psi @ 400° F | -15° to 400° | 1 3/4" | 0000000 | 00000 |
| 1/4 | 0.54 | 2000 psi @ 400° F | -15° to 400° | 2 3/8" | 0000000 | 00000 |
| 3/8 | 0.83 | 2000 psi @ 400° F | -15° to 400° | 2 3/4" | 0000000 | 00000 |
| 1/2 | 1.47 | 2000 psi @ 400° F | -15° to 400° | 3 3/16" | 0000000 | 00000 |
| 3/4 | 1.9 | 2000 psi @ 400° F | -15° to 400° | 3 9/16" | 0000000 | 000000 |
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Seal Material: Fluoroelastomer Rubber/PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Brass Body with Locking Knob Handle | ||||||
|---|---|---|---|---|---|---|
| 1/4 | 0.43 | 2000 psi @ 400° F | -15° to 400° | 2" | 0000000 | 000000 |
| 3/8 | 0.78 | 2000 psi @ 400° F | -15° to 400° | 2 1/4" | 0000000 | 00000 |
Brass Body with Locking Knob Handle and Internal Check Valve | ||||||
| 1/4 | 0.54 | 2000 psi @ 400° F | -15° to 400° | 2 3/8" | 0000000 | 00000 |
| 3/8 | 0.83 | 2000 psi @ 400° F | -15° to 400° | 2 3/4" | 0000000 | 00000 |
Easy-Set Threaded Precision Flow-Adjustment Valves
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Xenon
- Seal Material: See table
The color-coded threads and numerical markings on these valves ensure consistent and repeatable settings. One full revolution of the handle reveals a new color to indicate the set point. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. 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.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Seal Material | End-to-End Lg. | Each | |
Brass Body | |||||||
|---|---|---|---|---|---|---|---|
NPTF Female × NPTF Female | |||||||
| 1/8 | 0.25 | 2000 psi @ 400° F | -15° to 400° | Fluorocarbon Rubber | 1 7/16" | 00000000 | 000000 |
| 1/8 | 0.28 | 2000 psi @ 190° F | -15° to 200° | Fluoroelastomer Rubber | 1 15/16" | 0000000 | 00000 |
| 1/4 | 0.51 | 2000 psi @ 400° F | -15° to 400° | Fluorocarbon Rubber | 1 3/4" | 00000000 | 00000 |
| 1/4 | 0.53 | 2000 psi @ 190° F | -15° to 200° | Fluoroelastomer Rubber | 2 7/16" | 0000000 | 00000 |
| 3/8 | 0.76 | 2000 psi @ 190° F | -15° to 200° | Fluoroelastomer Rubber | 2 7/8" | 0000000 | 00000 |
| 3/8 | 0.92 | 2000 psi @ 400° F | -15° to 400° | Fluorocarbon Rubber | 2 1/16" | 00000000 | 00000 |
| 1/2 | 0.93 | 2000 psi @ 190° F | -15° to 200° | Fluoroelastomer Rubber | 3 7/16" | 0000000 | 00000 |
| 1/2 | 1.2 | 2000 psi @ 400° F | -15° to 400° | Fluorocarbon Rubber | 2 1/2" | 00000000 | 00000 |
| 3/4 | 1.43 | 2000 psi @ 190° F | -15° to 200° | Fluoroelastomer Rubber | 3 3/4" | 0000000 | 000000 |
| 3/4 | 1.84 | 2000 psi @ 400° F | -15° to 400° | Fluorocarbon Rubber | 2 3/4" | 00000000 | 000000 |
High-Pressure Threaded Precision Flow-Adjustment Valves
Often used in hydraulic and compressed air systems, these valves can withstand at least 6,000 psi. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.
Metal-to-metal seats 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.
- Valve Type: Needle
- For Use With: Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Seal Material: Fluoroelastomer Rubber/PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | ||
NPT Female × NPT Female | |||||||
|---|---|---|---|---|---|---|---|
| A | 1/8 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 000000 |
| A | 1/4 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 00000 |
NPT Male × NPT Female | |||||||
| B | 1/8 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 00000 |
| B | 1/4 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 00000 |
NPT Male × NPT Male | |||||||
| C | 1/8 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 00000 |
| C | 1/4 | 0.42 | 6000 psi @ 200° F | -10° to 200° | 1 13/16" | 0000000 | 00000 |
Panel-Mount Threaded Precision Flow-Adjustment Valves
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
For installation in instrument panels, these valves have a hex nut and threads below the handle. 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. They have a nut that can be tightened to compress the packing if it leaks.
Valves with a 303 stainless steel needle are more corrosion resistant than valves with a brass needle.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | Needle Material | End-to-End Lg. | Port-to-Port Lg. | Each | |
Brass Body—Straight | ||||||||
|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||||
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | 303 Stainless Steel | 1 3/4" | __ | 0000000 | 000000 |
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | Brass | 1 3/4" | __ | 0000000 | 00000 |
Brass Body—90° Elbow | ||||||||
NPT Female × NPT Female | ||||||||
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | 303 Stainless Steel | __ | 15/16" | 0000000 | 00000 |
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | Brass | __ | 15/16" | 0000000 | 00000 |
NPT Female × NPT Male | ||||||||
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | 303 Stainless Steel | __ | 15/16" | 0000000 | 00000 |
| 1/4 | 500 psi @ 180° F | -20° to 180° | 9/16" | Brass | __ | 15/16" | 0000000 | 00000 |
High-Precision Threaded Flow-Adjustment Valves
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
To ensure highly precise flow adjustment, these valves adjust flow in smaller increments than other valves for finer control over the flow rate in metering and sampling applications. They have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
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 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.
Valves with packing have a nut that can be tightened to compress the packing if it leaks.
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.
Compact Precision Flow-Adjustment
Valves with Barbed Fittings
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
- Seal Material: Buna-N Rubber
With a low-profile body and a narrow port-to-port length, these valves fit in tight spots. Barbs grip onto tubing, providing a secure hold. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valves have metal-to-metal seats that resist temperature fluctuations.
Screwdriver-operated valves require a slotted screwdriver (not included) to open and close.
| For Tube ID | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | Port-to-Port Lg. | Each | |
Handle-Operated | ||||||
|---|---|---|---|---|---|---|
Nickel-Plated Brass Body | ||||||
Barbed × Barbed | ||||||
| 1/16" | 180 psi @ 150° F | -40° to 200° | 5/16" | 7/16" | 00000000 | 000000 |
Screwdriver-Operated | ||||||
Nickel-Plated Brass Body | ||||||
Barbed × Barbed | ||||||
| 1/16" | 180 psi @ 150° F | -40° to 200° | 5/16" | 7/16" | 00000000 | 00000 |
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 |
Flow-Adjustment Inline Hydraulic Valves
Turn the dial to gradually adjust the amount of flow. Five colored rings on the valve stem represent different flow rates. Adjust the dial until you see the color of the flow rate you need.
One-way with unrestricted reverse valves regulate flow in one direction while allowing oil to flow freely in the opposite direction. Two-way valves regulate flow in either direction.
Brass valves have better corrosion resistance than steel valves.
NPTF (Dryseal) threads are compatible with NPT threads. UN/UNF (SAE) thread connections have straight threads and are also known as O-ring Boss fittings.
For technical drawings and 3-D models, click on a part number.
Inlet/Outlet Connection | O'all | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Flow Rate, gpm | Flow Coefficient (Cv) | Max. Pressure, psi | Seal Material | Lg. | Wd. | Ht. | Port-to-Port Lg. | Valve Type | Each | |
Brass Body | ||||||||||||
| 1/8 | 02 | 3 | 0.23 | 2,000 | Buna-N Rubber | 2" | 3/4" | 1 3/4" | 2" | Needle | 0000000 | 000000 |
| 1/4 | 04 | 5 | 0.43 | 2,000 | Buna-N Rubber | 2 5/8" | 7/8" | 2" | 2 5/8" | Needle | 0000000 | 00000 |
| 3/8 | 06 | 8 | 0.79 | 2,000 | Buna-N Rubber | 2 3/4" | 1" | 2 1/2" | 2 3/4" | Needle | 0000000 | 00000 |
| 1/2 | 08 | 15 | 0.98 | 2,000 | Buna-N Rubber | 3 1/2" | 1 1/4" | 3" | 3 1/2" | Needle | 0000000 | 000000 |
| 3/4 | 12 | 25 | 2.47 | 2,000 | Buna-N Rubber | 3 7/8" | 1 1/2" | 3 5/8" | 3 7/8" | Needle | 0000000 | 000000 |
| 1 | 16 | 40 | 5.25 | 500 | Buna-N Rubber | 5" | 1 7/8" | 5 1/8" | 5" | Needle | 0000000 | 000000 |
Inlet/Outlet Connection | O'all | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dash Size | Max. Flow Rate, gpm | Flow Coefficient (Cv) | Max. Pressure, psi | Seal Material | Lg. | Wd. | Ht. | Port-to-Port Lg. | Valve Type | Each | |
Brass Body | ||||||||||||
| 3/4"-16 | 08 | 8 | 0.79 | 2,000 | Buna-N Rubber | 3 1/2" | 1 1/8" | 2 5/8" | 3 1/2" | Needle | 0000000 | 0000000 |
Inlet/Outlet Connection | O'all | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Flow Rate, gpm | Flow Coefficient (Cv) | Max. Pressure, psi | Seal Material | Lg. | Wd. | Ht. | Port-to-Port Lg. | Valve Type | Each | |
Brass Body | ||||||||||||
| 1/8 | 02 | 3 | 0.23 | 2,000 | Buna-N Rubber | 1 1/2" | 3/4" | 1 3/4" | 1 1/2" | Needle | 0000000 | 000000 |
| 1/4 | 04 | 5 | 0.44 | 2,000 | Buna-N Rubber | 2" | 7/8" | 2" | 2" | Needle | 0000000 | 00000 |
| 3/8 | 06 | 8 | 0.79 | 2,000 | Buna-N Rubber | 2 1/2" | 1" | 2 1/2" | 2 1/2" | Needle | 0000000 | 00000 |
| 1/2 | 08 | 15 | 0.98 | 2,000 | Buna-N Rubber | 2 5/8" | 1 1/4" | 3" | 2 5/8" | Needle | 0000000 | 000000 |
| 3/4 | 12 | 25 | 2.47 | 2,000 | Buna-N Rubber | 3 1/4" | 1 1/2" | 3 5/8" | 3 1/4" | Needle | 0000000 | 000000 |
Precision Flow-Adjustment Inline Hydraulic Valves
A tapered needle gives you more precise control than standard flow-adjustment inline hydraulic valves. Five colored rings on the valve stem represent different flow rates. Adjust the dial until you see the color of the flow rate you need.
Brass valves have better corrosion resistance than steel valves.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
Electrically Operated Flow-Adjustment Valves
A solenoid automatically starts and stops flow to a single lubrication point to dispense lubricant only while equipment is running. When wired to a machine’s on/off switch, the solenoid remains closed until the machine is turned on. Turn the dial on the valve to adjust flow. Valves can be used with any oil grade. Flow rate depends on temperature. They have PTF and NPTF (Dryseal) threads, which are compatible with NPT threads.
Oil Inlet | Oil Outlet | Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Ht. | Wd. | Material | Voltage | Current, A | Temp. Range, °F | Features | Each | |
Top Inlet | ||||||||||||||
| 1/8 | PTF | Female | 1/8 | NPTF | Male | 3 9/32" | 4 1/4" | Brass | 120V AC | 0.1 | -30° to 250° | Glass Flow Sight | 0000000 | 0000000 |
Side Inlet | ||||||||||||||
| 1/4 | PTF | Female | 1/4 | NPTF | Male | 5 15/16" | 2 13/16" | Brass | 120V AC | 0.1 | -30° to 250° | Glass Flow Sight | 0000000 | 000000 |
Flow-Adjustment Valves
Manually adjust the flow of oil to a single lubrication point.
One-inlet and two-inlet valves can be used with any oil grade. Flow rate depends on temperature.
PTF and NPTF (Dryseal) threads are compatible with NPT threads.
Oil Inlet | Oil Outlet | Overall | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Oil Outlet Pressure, psi | Ht. | Wd. | Material | Temp. Range, °F | For Max. ISO Viscosity Grade | Each | |
1 Top Inlet | |||||||||||||
| 1/8 | NPTF | Male | 1/8 | NPTF | Male | Not Rated | 3 1/32" | 1 15/16" | Brass | -30° to 250° | Not Rated | 0000000 | 000000 |
| 1/8 | NPTF | Female | 1/8 | NPTF | Female | Not Rated | 2 23/32" | 1 15/16" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 1/4 | NPTF | Female | 1/4 | NPTF | Female | Not Rated | 2 31/32" | 1 15/16" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 1/4 | NPTF | Male | 1/4 | NPTF | Male | Not Rated | 3 13/32" | 1 15/16" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 3/8 | NPTF | Female | 3/8 | NPTF | Female | Not Rated | 3 1/4" | 2 1/4" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 3/8 | NPTF | Male | 3/8 | NPTF | Male | Not Rated | 3 9/16" | 2 1/4" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 1/2 | NPTF | Male | 1/2 | NPTF | Male | Not Rated | 3 15/16" | 2 5/16" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |
| 1/2 | NPTF | Female | 1/2 | NPTF | Female | Not Rated | 4 5/8" | 2 5/16" | Brass | -30° to 250° | Not Rated | 0000000 | 00000 |