About Precision Flow-Adjustment Valves
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About On/Off Valves
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Threaded On/Off Valves for Natural Gas and Propane
- Valve Type: Plug
- For Use With: Natural Gas, Propane
Also known as plug valves, these are often used as a mainline shutoff in natural gas and propane pipelines.
T-handles resist accidental movement when snagged or bumped.
Lockable T-handles can be fixed in place using a padlock (not included) with a shackle diameter up to 1/2”.
Wrench-operated valves require a wrench (not included) to open and close the valve.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Bronze Body | |||||
|---|---|---|---|---|---|
NPT Female × NPT Female | |||||
| 1/4 | 2 psi @ 70° F | 35° to 125° | 1 3/4" | 0000000 | 000000 |
| 1/4 | 25 psi @ 70° F | 35° to 125° | 1 7/8" | 00000000 | 00000 |
| 3/8 | 25 psi @ 70° F | 35° to 125° | 1 7/8" | 00000000 | 00000 |
| 1/2 | 5 psi @ 70° F | 35° to 125° | 2" | 0000000 | 00000 |
| 1/2 | 25 psi @ 70° F | 35° to 125° | 2 1/8" | 00000000 | 00000 |
| 3/4 | 5 psi @ 70° F | 35° to 125° | 2 3/8" | 0000000 | 00000 |
| 1 | 2 psi @ 70° F | 35° to 125° | 2 3/4" | 0000000 | 00000 |
| 1 1/4 | 2 psi @ 70° F | 35° to 125° | 3 1/4" | 0000000 | 00000 |
| Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | For Max. Shackle Dia. | Each | |
Cast Iron Body | ||||||
|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||
| 1/2 | 175 psi @ 70° F | -20° to 150° | 2 7/8" | 1/2" | 00000000 | 000000 |
| 3/4 | 175 psi @ 70° F | -20° to 150° | 3 1/8" | 1/2" | 00000000 | 00000 |
| 1 | 175 psi @ 70° F | -20° to 150° | 3 3/8" | 1/2" | 00000000 | 00000 |
| 1 1/4 | 175 psi @ 70° F | -20° to 150° | 3 7/8" | 1/2" | 00000000 | 00000 |
| 1 1/2 | 175 psi @ 70° F | -20° to 150° | 4 5/8" | 1/2" | 00000000 | 000000 |
| 2 | 175 psi @ 70° F | -20° to 150° | 5 5/8" | 1/2" | 00000000 | 000000 |
| Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Bronze Body | |||||
|---|---|---|---|---|---|
NPT Female × NPT Female | |||||
| 1/2 | 5 psi @ 70° F | 35° to 125° | 2" | 00000000 | 000000 |
| 1/2 | 25 psi @ 70° F | 35° to 125° | 2 1/8" | 00000000 | 00000 |
| 3/4 | 5 psi @ 70° F | 35° to 125° | 2 3/8" | 00000000 | 00000 |
| 1 | 2 psi @ 70° F | 35° to 125° | 2 3/4" | 00000000 | 00000 |
| 1 1/2 | 2 psi @ 70° F | 35° to 125° | 3 3/8" | 00000000 | 00000 |
| 2 | 2 psi @ 70° F | 35° to 125° | 4 3/8" | 00000000 | 000000 |
Precision Flow-Adjustment Valves with Yor-Lok Fittings for Chemicals
- Valve Type: Needle
- For Use With: Oil, Acetone, Air, Ammonia, Argon, Butane, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Gasoline, Helium, Isopropyl Alcohol, Kerosene, Krypton, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Natural Gas, Neon, Nitrogen, Oxygen, Propane, Soap Solutions, Sodium Hydroxide, Toluene, Xenon, Xylene
- Seal Material: PTFE Plastic
- Seat Material: 316 Stainless Steel
- Packing Material: PTFE Plastic
- Needle Material: 316 Stainless Steel
For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. The 316 stainless steel body, seal and needle, and the PTFE seat and packing can withstand aggressive and corrosive solutions in chemical-processing applications. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Threads and a hex nut below the handle allow you to mount these valves in instrument panels. All have a nut that can be tightened to compress the packing if it leaks. Valves have bubble-tight soft seats that provide a tight seal when the valve is completely 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.
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | End-to-End Lg. | Each | |
316 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | |||||||
| 1/4" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 2 7/8" | 0000000 | 0000000 |
| 3/8" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 2 7/8" | 0000000 | 000000 |
| 1/2" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 3 1/8" | 0000000 | 000000 |
Precision Flow-Adjustment Valves with Push-to-Connect Fittings for Chemicals
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Methanol, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Sulfuric Acid, Toluene, Xenon, Xylene
- Seal Material: Fluoroelastomer Rubber
- Packing Material: PTFE Plastic
- Needle Material: PVDF Plastic
Insert tubing into the fittings on these valves—no heat, solder, or flux required. With a fluoroelastomer seal and a PVDF body, they can withstand aggressive and corrosive solutions in chemical-processing applications. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Threads and a hex nut below the handle allow you to install these valves in instrument panels. They 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.
Precision Flow-Adjustment Valves with Barbed Fittings for Chemicals
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Methanol, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Sulfuric Acid, Toluene, Xenon, Xylene
- Seal Material: PTFE Plastic
- Packing Material: PTFE Plastic
- Needle Material: PVDF Plastic
Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a PTFE seal and a PVDF body. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Threads and a hex nut below the handle allow you to install these valves in instrument panels. They 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.
| For Tube ID | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Max. Temperature, °F | Panel Cutout Dia. | End-to-End Lg. | Each | |
Black PVDF Plastic Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Barbed × Barbed | ||||||||
| 1/4" | 3/8" | 0.3 | 125 psi @ 140° F | 140° | 7/8" | 3 5/16" | 0000000 | 000000 |
| 3/8" | 1/2" | 0.3 | 125 psi @ 140° F | 140° | 7/8" | 3 5/16" | 0000000 | 00000 |
| 1/2" | 5/8" | 0.4 | 125 psi @ 140° F | 140° | 7/8" | 3 5/16" | 0000000 | 00000 |
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 |
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.
Laboratory Valves
Styles A and B come with three interchangeable, color-coded identification buttons: orange for air, blue for gas, and yellow for vacuum.
Valve | Max. | Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Function | Type | Lg. | Ht. | Air Pressure, psi | Vacuum, in. of Hg | Gas Pressure, psi | Pipe Size | Thread Type | Gender | Outlet Hose Connection Type | For Hose ID | Each | |
For Air and Gas | ||||||||||||||
Chrome-Plated Brass | ||||||||||||||
| B | Flow Adjustment | Needle | 3 7/8" | 2 3/4" | 125 | Not Rated | 125 | 3/8 | NPT | Male | Barbed | 1/4"-3/8" | 0000000 | 000000 |
Gas Sampling Valves for Syringes
- Valve Type: Plug
- For Use With: Butane, Carbon Dioxide, Natural Gas, Nitrogen, Oxygen
Convert an everyday syringe into a gas sampling syringe. These valves allow you to collect, transport, and store gas samples without worrying about evaporation or leaks. Slide the female end over the base of your syringe and attach a needle to the male side.
For technical drawings and 3-D models, click on a part number.
| Flow Pattern | Maximum Pressure | Temperature Range | End-to-End Lg. | Autoclavable | Each | |
Plastic Body with Standard Lever Handle | ||||||
|---|---|---|---|---|---|---|
Female Luer Lock × Male Luer Lock | ||||||
| Straight | 100 psi @ 70° F | Not Rated | 1" | Yes | 0000000 | 0000000 |