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About On/Off Valves
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About Precision Flow-Adjustment Valves
More
About Flanged Flow-Adjustment Valves
More
Miniature Threaded On/Off Valves for Chemicals

- Valve Type: Ball
- For Use With: Air, Argon, Butane, Carbon Dioxide, Chlorine, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Sulfuric Acid, Toluene, Water, Xenon, Xylene
- Ball Material: 316 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
- Seat Material: Fluoroelastomer Rubber
To withstand aggressive and corrosive solutions in miniature chemical-processing pipelines, these tiny valves have a chemical-resistant fluoroelastomer seal and a corrosion-resistant 303 stainless steel body. They are standard port, so they slightly restrict flow.
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.
Thread Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
303 Stainless Steel Body | |||||||
---|---|---|---|---|---|---|---|
UNF Female × UNF Female | |||||||
10-32 | 0.1 | 250 psi @ 150° F | 0° to 400° | 25 | 11/16" | 0000000 | 0000000 |
Ultra-Chemical-Resistant Threaded On/Off Valves

The most chemical-resistant threaded valves we offer, these have a PTFE seal and an alloy body that can withstand extremely aggressive and corrosive chemicals, such as methyl ethyl ketone and toluene. They are standard port, so they slightly restrict flow.
Monel valves are more corrosion resistant than Alloy 20 valves.
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: Acetone, Air, Butane, Carbon Dioxide, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Kerosene, Methanol, Methyl Ethyl Ketone, Nitrogen, Propane, Soap Solutions, Sodium Hydroxide, Toluene, Water, Xylene
- Ball Material: Alloy 20 Stainless Steel
- Seal Material: PTFE Plastic
- Seat Material: PTFE Plastic
- Valve Type: Ball
- For Use With: Acetone, Air, Carbon Dioxide, Diesel Fuel, Gasoline, Kerosene, Methyl Ethyl Ketone, Nitrogen, Salt Water, Soap Solutions, Sodium Hydroxide, Toluene, Water, Xylene
- Ball Material: Monel
- Seal Material: PTFE Plastic
- Seat Material: PTFE Plastic
Flanged On/Off Valves for Chemicals

- Valve Type: Ball
- For Use With: Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Oil, Phosphoric Acid, Salt Water, Soap Solutions, Toluene, Water, Xylene
- Ball Material: Glass-Filled Vinyl Ester
- Seal Material: PTFE Plastic
- Seat Material: PTFE Plastic
- Packing Material: PTFE Plastic
- Specifications Met: ASME B16.10, ASME B16.5
Bolt these valves to ANSI flanges. A glass-filled vinyl ester body and a PTFE seal withstand aggressive and corrosive solutions in chemical-processing applications. Fix the lockable lever handle in place using a padlock (not included) with a shackle diameter up to 5/16”. All are standard port, so they slightly restrict flow.
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.
Bolts | ||||||||||||||
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Pipe Size | Flange OD | Circle Dia. | No. of Holes | Hole Dia. | Hole Size | Included | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | For Max. Shackle Dia. | Each | |
Glass-Filled Vinyl Ester Body | ||||||||||||||
Flanged × Flanged | ||||||||||||||
1 | 4 1/4" | 3 1/8" | 4 | 5/8" | 0.62" | No | 45 | 250 psi @ 100° F | -50° to 215° | 29.9 | 5" | 5/16" | 0000000 | 0000000 |
2 | 6" | 4 3/4" | 4 | 3/4" | 0.75" | No | 165 | 250 psi @ 100° F | -50° to 215° | 29.9 | 7" | 5/16" | 0000000 | 000000 |
3 | 7 1/2" | 6" | 4 | 3/4" | 0.75" | No | 350 | 250 psi @ 100° F | -50° to 215° | 29.9 | 8" | 5/16" | 0000000 | 00000000 |
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 | ||||||||
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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 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 |
Flanged Flow-Adjustment Valves for Chemicals
With seats that can stand up to aggressive and corrosive solutions, these valves are often used in chemical-processing applications. They bolt to flanges for adjusting and regulating flow in flanged pipelines.
Wafer valves must be sandwiched between two flanges; they have tabs or unthreaded holes to help align the valve between the flanges.
Lug valves can be sandwiched between two flanges or bolted directly to a single flange for servicing one end of the pipeline without depressurizing the other side. They have threaded flange holes with a hole pattern that matches ANSI flanges of the same pipe size.
Lockable lever handles have 10 flow-adjustment positions. The handle can be fixed in place with a padlock (not included).
Wheel handles open and close with multiple turns, providing fully adjustable flow.
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: Butterfly
- For Use With:
Painted Ductile Iron Disc:
Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene
316 Stainless Steel Disc:
Food, Beverage, Carbon Dioxide, Gasoline, Liquid Carbon Dioxide, Phosphoric Acid - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67, NSF/ANSI 372, NSF/ANSI 61
Pipe Size | For Max. Shackle Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | ||||||||||||
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2 | 5/16" | 6" | 4 3/4" | 4 | 3/4" | No | 115 | 200 psi @ 275° F | 10° to 275° | 1 3/4" | 000000000 | 0000000 |
2 1/2 | 5/16" | 7" | 5 1/2" | 4 | 3/4" | No | 196 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
3 | 5/16" | 7 1/2" | 6" | 4 | 3/4" | No | 302 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
4 | 5/16" | 9" | 7 1/2" | 4 | 3/4" | No | 600 | 200 psi @ 275° F | 10° to 275° | 2 1/8" | 000000000 | 000000 |
5 | 5/16" | 10" | 8 1/2" | 4 | 7/8" | No | 1,022 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000 |
6 | 5/16" | 11" | 9 1/2" | 4 | 7/8" | No | 1,579 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000 |

- Valve Type: Butterfly
- For Use With:
Painted Ductile Iron Disc:
Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene
316 Stainless Steel Disc:
Food, Beverage, Carbon Dioxide, Gasoline, Liquid Carbon Dioxide, Phosphoric Acid - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67, NSF/ANSI 372, NSF/ANSI 61
Pipe Size | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
8 | 13 1/2" | 11 3/4" | 4 | 7/8" | No | 3,136 | 200 psi @ 275° F | 10° to 275° | 2 1/2" | 000000000 | 000000000 |


- Valve Type: Butterfly
- For Use With: See table
- Seat Material:
Ductile Iron Body: Fluoroelastomer Rubber
Cast Iron Body: PTFE-Lined Buna-N Rubber - Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
Ductile Iron Body—316 Stainless Steel Disc: API 609, MSS-SP-67, NSF/ANSI 372, NSF/ANSI 61
Pipe Size | For Use With | For Max. Shackle Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 6" | 4 3/4" | 4 | 3/4" | No | 115 | 200 psi @ 275° F | 10° to 275° | 1 3/4" | 000000000 | 0000000 |
2 1/2 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 7" | 5 1/2" | 4 | 3/4" | No | 196 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
3 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 7 1/2" | 6" | 4 | 3/4" | No | 302 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
4 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 9" | 7 1/2" | 8 | 3/4" | No | 600 | 200 psi @ 275° F | 10° to 275° | 2 1/8" | 000000000 | 000000 |
5 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 10" | 8 1/2" | 8 | 7/8" | No | 1,022 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000 |
6 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 11" | 9 1/2" | 8 | 7/8" | No | 1,579 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000 |

- Valve Type: Butterfly
- For Use With:
Painted Ductile Iron Disc:
Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene
316 Stainless Steel Disc:
Food, Beverage, Carbon Dioxide, Gasoline, Liquid Carbon Dioxide, Phosphoric Acid - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67, NSF/ANSI 372, NSF/ANSI 61
Pipe Size | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
8 | 13 1/2" | 11 3/4" | 8 | 7/8" | No | 3,136 | 200 psi @ 275° F | 10° to 275° | 2 1/2" | 000000000 | 000000000 |
Easy-Clean Threaded Diverting Valves for Chemicals
- Valve Type: Ball
- For Use With: Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite, Sulfuric Acid, Toluene, Water
- Ball Material: Polypropylene Plastic
- Seal Material: Fluoroelastomer Rubber
There’s no need to unbolt these valves for cleaning—remove the handle and slide the valve apart for inline access to internal components. Also known as elliptical valves, they have a fluoroelastomer seal and a polypropylene body for diverting flow in chemical-processing applications. All are full port, so they do not restrict flow.
Valves with a side-port inlet direct flow from the right port to the center or left port. They cannot shut off flow.
Valves with any port inlet can use any port as an inlet or outlet. Turn the handle to direct flow from the inlet port to one outlet port at full capacity, direct flow to both outlet ports simultaneously at reduced capacity, or shut off flow completely.
For technical drawings and 3-D models, click on a part number.



Pipe Size | Flow Pattern | Max. Pressure | Temp. Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
Black Polypropylene Plastic Body | |||||||
---|---|---|---|---|---|---|---|
NPT Female × NPT Female × NPT Female | |||||||
1/4 | L-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 2 1/4" | 000000000 | 000000 |
3/8 | L-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3" | 000000000 | 00000 |
1/2 | L-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3" | 000000000 | 00000 |
3/4 | L-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3 1/2" | 000000000 | 00000 |



Pipe Size | Flow Pattern | Max. Pressure | Temp. Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
Black Polypropylene Plastic Body | |||||||
---|---|---|---|---|---|---|---|
NPT Female × NPT Female × NPT Female | |||||||
1/4 | T-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 2 1/4" | 00000000 | 000000 |
3/8 | T-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3" | 00000000 | 00000 |
1/2 | T-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3" | 00000000 | 00000 |
3/4 | T-Pattern | 150 psi @ 70° F | 15° to 180° | 29 | 3 1/2" | 00000000 | 00000 |