About Precision Flow-Adjustment Valves
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About On/Off Valves
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Compact Threaded On/Off Valves
Install these valves in tight spots, such as where pipelines are crowded together. They’re less than half as long as standard threaded valves and one-third shorter in height.
Bronze valves are stronger and more durable than brass valves. Chrome-plated brass valves are more corrosion resistant than plain brass and bronze valves.Screwdriver-operated valves are our most compact option. Since they open and close with a slotted screwdriver (not included), they’re also the most resistant to accidental movement.
Valves with threaded outlets can connect to pipe or hose, giving you more control over where your fluid flows than valves with a drain or spout outlet.
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: Ball
- For Use With: Water
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Thread Size  | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
NPT Male × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8 × 1/4 | __ | __ | 4 | 400 psi @ 100° F | 35° to 180° | 29.9 | 1 5/8" | 00000000 | 000000 |
| 1/4 × 1/4 | __ | __ | 5.5 | 400 psi @ 100° F | 35° to 180° | 29.9 | 1 5/8" | 00000000 | 00000 |
NPT Male × UN/UNF (SAE 45°) Male | |||||||||
| 1/8 | 7/16"-20 | 1/4" | 4 | 400 psi @ 100° F | 35° to 180° | 29.9 | 1 5/8" | 00000000 | 00000 |
| 1/4 | 7/16"-20 | 1/4" | 5.5 | 400 psi @ 100° F | 35° to 180° | 29.9 | 1 5/8" | 00000000 | 00000 |
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||
|---|---|---|---|---|---|---|---|
| 1/8 | 3 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 000000 |
| 1/4 | 3.5 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 0000 |
| 3/8 | 3.6 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 0000 |
| 1/2 | 4.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/8" | 0000000 | 00000 |
NPT Female × NPT Male | |||||||
| 1/8 | 3 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 00000 |
| 1/4 | 3.5 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 0000 |
| 3/8 | 3.6 | 435 psi @ 100° F | 0° to 200° | 29.9 | 1 11/16" | 0000000 | 0000 |
| 1/2 | 4.8 | 435 psi @ 100° F | 0° to 200° | 29.9 | 2 1/8" | 0000000 | 00000 |
On/Off Valves with Push-to-Connect Fittings
Insert tubing into the fittings on these valves—no heat, solder, or flux required.
Knob handle or screwdriver-operated valves resist accidental movement when snagged or bumped. They can be operated with a slotted screwdriver (not included) to open and close the valve from a distance, such as in tight spots that you can't reach with your hand.
Nylon valves are durable and resist pressure changes, so they’re good for systems that start and stop often. However, nylon can swell and weaken when exposed to moisture.
Buna-N rubber seals resist water and oil. EPDM rubber seals resist salt water, soapy solutions, and withstand temperature changes better than Buna-N rubber seals.
Standard-port valves slightly restrict flow.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material:
Push to Connect × Push to Connect: EPDM Rubber
BSPP Male × Push to Connect: Buna-N Rubber
| Pipe Size | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
Black Nylon Plastic Body | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Push to Connect × Push to Connect | |||||||||
| __ | 5/32" | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 000000 |
| __ | 1/4" | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 00000 |
| __ | 5/16" | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 00000 |
| __ | 3/8" | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2 5/8" | 0000000 | 00000 |
| __ | 4mm | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 00000 |
| __ | 6mm | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 00000 |
| __ | 8mm | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2" | 0000000 | 00000 |
| __ | 10mm | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2 5/8" | 0000000 | 00000 |
| __ | 12mm | Not Rated | 145 psi @ 175° F | 0° to 175° | 28 | Standard | 2 5/8" | 0000000 | 00000 |
BSPP Male × Push to Connect | |||||||||
| 1/8 | 6mm | Not Rated | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 7/16" | 0000000 | 00000 |
| 1/4 | 8mm | Not Rated | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 3/8" | 0000000 | 00000 |
| 3/8 | 10mm | Not Rated | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2 7/8" | 0000000 | 00000 |
| 1/2 | 12mm | Not Rated | 145 psi @ 175° F | 0° to 175° | Not Rated | Standard | 2" | 0000000 | 00000 |
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. Valve body is 303 stainless steel for excellent corrosion resistance. Valves have metal-to-metal seats that resist temperature fluctuations.
Screwdriver-operated valves require a slotted screwdriver (not included) to open and close.
For technical drawings and 3-D models, click on a part number.