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Needle Material Needle Material |
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Seat Material Seat Material |
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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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End-to-End Length End-to-End Length |
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Overall Length Overall Length |
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About Precision Flow-Adjustment Valves
More
About Flanged Flow-Adjustment Valves
More
Easy-Set Threaded Plastic Precision
Threaded Flow-Adjustment Valves
- Valve Type: Needle
- For Use With: See table
- Seal Material: Buna-N Rubber
To ensure consistent and repeatable settings, these valves have color-coded handle threads and numerical markings. 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. The locking knob handle has a ring that prevents accidental adjustment.
Internal check valves actuate when the pressure changes to stop flow control 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.
Valves | Mounting Nuts | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | End-to-End Lg. | For Use With | Each | Each | ||
Black Glass-Reinforced Polyester Plastic Body | ||||||||||
NPTF Female × NPTF Female | ||||||||||
| 1/8 | 0.26 | 200 psi @ 200° F | 0° to 200° | 1" | 1 15/16" | Air, Oxygen | 0000000 | 000000 | 0000000 | 00000 |
| 1/4 | 0.48 | 200 psi @ 200° F | 0° to 200° | 1" | 1 15/16" | Air, Oxygen | 0000000 | 00000 | 0000000 | 0000 |
| 3/8 | 1.06 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 2 7/8" | Air, Oxygen | 0000000 | 00000 | 0000000 | 0000 |
| 1/2 | 1.35 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 2 7/8" | Air, Oxygen | 0000000 | 00000 | 0000000 | 0000 |
| 3/4 | 1.96 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 3" | Air, Oxygen | 0000000 | 00000 | 0000000 | 0000 |
Black Glass-Reinforced Polyester Plastic Body with Internal Check Valve | ||||||||||
NPTF Female × NPTF Female | ||||||||||
| 1/8 | 0.26 | 200 psi @ 200° F | 0° to 200° | 1" | 1 15/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Oxygen, Xenon | 00000000 | 00000 | 0000000 | 0000 |
| 1/4 | 0.48 | 200 psi @ 200° F | 0° to 200° | 1" | 1 15/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Oxygen, Xenon | 00000000 | 00000 | 0000000 | 0000 |
| 3/8 | 1.06 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 2 7/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Oxygen, Xenon | 00000000 | 00000 | 0000000 | 0000 |
| 1/2 | 1.35 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 2 7/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Oxygen, Xenon | 00000000 | 00000 | 0000000 | 0000 |
| 3/4 | 1.96 | 200 psi @ 200° F | 0° to 200° | 1 3/8" | 3" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Oxygen, Xenon | 00000000 | 00000 | 0000000 | 0000 |
Threaded Precision Flow-Adjustment Valves for Chemicals
To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a fluoroelastomer seal and a plastic body. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.
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, Air, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
- Needle Material: PVC Plastic
- Valve Type: Needle
- For Use With: Water, Air, Carbon Dioxide, Citric Acid, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oxygen, Salt Water, Soap Solutions
- Seal Material: Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
- Needle Material: Polypropylene Plastic
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, Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen, Liquid Oxygen, 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 and seal, the PTFE seat and packing, and the Monel needle 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 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 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.
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.
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, Isopropyl Alcohol, Liquid Carbon Dioxide, Natural Gas, Phosphoric Acid, Propane, Sodium Hydroxide - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67
| Pipe Size | For Max. Shackle Dia. | Pressure Class | 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 | 5/16" | 125, 150 | 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" | 125, 150 | 7" | 5 1/2" | 4 | 3/4" | No | 196 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
| 3 | 5/16" | 125, 150 | 7 1/2" | 6" | 4 | 3/4" | No | 302 | 200 psi @ 275° F | 10° to 275° | 1 7/8" | 000000000 | 000000 |
| 4 | 5/16" | 125, 150 | 9" | 7 1/2" | 4 | 3/4" | No | 600 | 200 psi @ 275° F | 10° to 275° | 2 1/8" | 000000000 | 000000 |
| 5 | 5/16" | 125, 150 | 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" | 125, 150 | 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, Isopropyl Alcohol, Liquid Carbon Dioxide, Natural Gas, Phosphoric Acid, Propane, Sodium Hydroxide - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67
| Pipe Size | Pressure Class | 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 | 125, 150 | 13 1/2" | 11 3/4" | 4 | 7/8" | No | 3,136 | 200 psi @ 275° F | 10° to 275° | 2 1/2" | 000000000 | 0000000 |
- 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
316 Stainless Steel Disc: API 609, MSS-SP-67
| Pipe Size | For Use With | For Max. Shackle Dia. | Pressure Class | 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" | 125, 150 | 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" | 125, 150 | 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" | 125, 150 | 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" | 125, 150 | 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" | 125, 150 | 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" | 125, 150 | 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, Isopropyl Alcohol, Liquid Carbon Dioxide, Natural Gas, Phosphoric Acid, Propane, Sodium Hydroxide - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67
| Pipe Size | Pressure Class | 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 | 125, 150 | 13 1/2" | 11 3/4" | 8 | 7/8" | No | 3,136 | 200 psi @ 275° F | 10° to 275° | 2 1/2" | 000000000 | 0000000 |