About On/Off Valves
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How to Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Vibration-Resistant Compression Fittings for Stainless Steel Tubing
- For Use With: Acetylene, Air, Butane, Compressed Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Helium, Hydraulic Fluid (Petroleum Base), Kerosene, Mineral Oil, Natural Gas, Nitrogen, Propane, Soap Solutions
- Temperature Range: -10° to 400° F
- Tubing: Use with seamless 316Ti or 321 stainless steel
- Specifications Met: DIN 3861
Instead of a metal sleeve (ferrule), these fittings have a rubber sleeve that cushions tubing and absorbs vibration to maintain a tight seal, even when connected to large pumps. However, rubber sleeves can’t withstand temperatures as high as metal ones. To create the strong seal, tighten the included nut. These fittings are made of 316 stainless steel, so they have excellent corrosion resistance. They’re also known as flareless fittings. All meet DIN 3861, which is an international standard for compression tube fitting specifications.
BSPP and metric male threads have a gasket to prevent leaks.
Male Threads with
Gasket and Washer
For Tube | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Pipe Size  | Thread Size | Thread Pitch, mm | Material | Gasket Material | Maximum Pressure | Each | |
NPT Threads | |||||||||
| 6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 0000000 |
| 6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
| 8 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 10 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 10 | 1 | 3/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 12 | 1.5 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 12 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 15 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 18 | 2 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
BSPP Threads | |||||||||
| 6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
Metric Threads | |||||||||
| 8 | 1 | __ | M12 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 000000 |
| 10 | 1 | __ | M14 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 000000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Each | |
| 6 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 000000 |
| 8 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 10 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 12 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 15 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 18 | 2 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
Nuts for Vibration-Resistant Compression Fittings for Stainless Steel Tubing
- For Use With: Acetylene, Air, Butane, Diesel Fuel, Compressed Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid (Petroleum Base), Kerosene, Mineral Oil, Natural Gas, Helium, Nitrogen, Propane, Soap Solutions
- Temperature Range: -10° to 400° F
- Tubing: Use with seamless 316Ti or 321 stainless steel
- Specifications Met: DIN 3861
Pair these nuts with vibration-resistant compression sleeves and fittings for a strong seal on stainless steel tubing. Made of 316 stainless steel, they have excellent corrosion resistance. All meet DIN 3861, which is an international standard for compression tube fitting specifications.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Nut Material | Sleeve Material | Maximum Pressure | Each | |
| 6 | 1 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 000000 |
| 8 | 1 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 10 | 1 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 12 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 15 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 18 | 2 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
High-Flow Quick-Disconnect Tube Couplings for Chemicals
- For Use With: Acetic Acid (20%), Ammonia, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Hydraulic Fluid (Petroleum Based), Hydrochloric Acid, Hydrogen Peroxide (30%), Kerosene, Methanol, Nitric Acid (20%), Potassium Hydroxide, Sodium Carbonate, Sodium Hydroxide (20%), Sulfuric Acid (75%), Synthetic Oil
- Temperature Range: 32° to 250° F
- Tubing: Use with soft or firm (Durometer 55A-95A) nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, PVC plastic or TPE plastic
A spring-free flow path allows more chemicals to pass through these tube couplings at lower line pressures than other quick-disconnect couplings. This reduces turbulence, foaming, bubbles, and blockage. They have a shut-off valve that stops the flow when the coupling is disconnected, so chemicals won’t leak from your line. Unlike couplings with a button release, these have a safety slide to reduce accidental separation from bumps or drops. They are often used in laboratories, pharmaceutical facilities, and other sterile environments.
Made of PVDF, also known as Kynar, these couplings have excellent chemical and UV resistance at ambient and elevated temperatures. They also resist abrasion, impact, flames, and corrosion. Compared to other quick-disconnect couplings for chemicals, these couplings can withstand higher temperatures—all the way up to 250° F.
When you insert the plug into the socket, it’ll connect with a click. To disconnect, slide the latch on the socket and remove the plug.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
They have a single barb that grips onto tubing or hose and provides a smooth clamping surface for extra-tight connections that minimize leaks.
They have a single barb that grips onto tubing or hose and provides a smooth clamping surface for extra-tight connections that minimize leaks.
With Shut-Off | |||||||
|---|---|---|---|---|---|---|---|
| Pipe Size | Coupling Size | For Plug OD | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||||
| 1/8 | 7/8 | 9/16" | PVDF Plastic | White | 90 psi @ 72° F | 0000000 | 000000 |
| 1/4 | 1 | 11/16" | PVDF Plastic | White | 90 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1 | 11/16" | PVDF Plastic | White | 90 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 1 3/8 | 1" | PVDF Plastic | White | 90 psi @ 72° F | 0000000 | 00000 |
Flow-Control Orifices for Chemicals
- For Use With: Air, Ammonia, Sodium Hydroxide, Beverage, Carbon Dioxide, Diesel Fuel, Water, Oil, Ethylene Glycol, Food, Hydrochloric Acid, Kerosene, Liquid Carbon Dioxide, Methanol, Soap Solutions, Methyl Ethyl Ketone, Mineral Spirits, Natural Gas, Oxygen, Nitric Acid
- Max. Pressure: 120 psi @ 75° F
- Temperature Range: 40° to 140° F
Made of PVC, these orifices have excellent resistance to a wide range of corrosive chemicals. Also known as flow restrictors and precision orifice valves, they are used to throttle, vent, bleed, or regulate the flow of liquids and gases. They automatically adjust to changing inlet pressure to maintain consistent outlet flow.
Threaded On/Off Valves with Garden Hose Outlet
- Valve Type: Ball
- For Use With: Water, Air, Helium, Butane, Ethanol, Ethylene Glycol, Gasoline, Kerosene, Mineral Spirits, Natural Gas, Propane, Soap Solutions, Methanol
Turn the flow to any garden hose on and off. These valves have garden hose threads, which are a standard size, so they're universally compatible with all standard garden hoses. They do not restrict flow when open—they’re full port.
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.
| Pipe Size | Hose Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Handle Material | Seal Material | End-to-End Lg. | Each | |
Brass Body | |||||||||
|---|---|---|---|---|---|---|---|---|---|
NPT Female Inlet × GHT Male Outlet | |||||||||
| 3/4 | 3/4 | 8.7 | 125 psi @ 72° F | 0° to 180° | Zinc | Buna-N Rubber | 1 7/8" | 00000000 | 000000 |
GHT Female Inlet × GHT Male Outlet | |||||||||
| __ | 3/4 | 8.7 | 125 psi @ 72° F | 0° to 180° | Zinc | Buna-N Rubber | 1 7/8" | 00000000 | 00000 |