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O-Ring Face Seal |
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Threaded |
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Flared |
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Socket Connect |
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Thread Size Thread Size |
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For Use With For Use With |
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For Tube Material For Tube Material |
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Maximum Pressure Maximum Pressure |
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Maximum Vacuum Maximum Vacuum |
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Length Length |
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Nut Material Nut Material |
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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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A tube adapter sits flush against the flat face of the fitting so you can slide the tubing and fitting sideways to disconnect in cramped spaces. Fittings are also known as zero-clearance fittings. To install, weld a tube adapter to the tubing with a brazing ring (sold separately), then mate the tube adapter to the fitting and screw on the nut. As the nut is tightened, the tube adapter compresses the O-ring, creating a strong seal. Fittings are zinc-plated steel for fair corrosion resistance. Nuts and tube adapters are sold separately.
NPTF (Dryseal) threads are compatible with NPT threads. BSPP and UN/UNF (SAE) male threads have a gasket to prevent leaks. UN/UNF (SAE) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Pipe Size | Thread Size | Material | Gasket Material | Max. Pressure | Each | |
BSPP Threads | |||||||
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1/4" | 1/4 | __ | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 1/4 | __ | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 0000000 | 0000 |
3/8" | 3/8 | __ | Zinc-Plated Steel | Buna-N Rubber | 5,000 psi @ 72° F | 0000000 | 0000 |
NPTF Threads | |||||||
1/4" | 1/4 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 0000000 | 0000 |
3/8" | 3/8 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 0000000 | 0000 |
1/2" | 1/2 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 0000000 | 00000 |
UN/UNF (SAE) Threads | |||||||
1/4" | __ | 7/16"-20 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 0000000 | 0000 |
3/8" | __ | 9/16"-18 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 00000000 | 0000 |
1/2" | __ | 3/4"-16 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 00000000 | 0000 |
Fittings that swivel until tightened rotate 360° for easy installation.
For Tube OD | Pipe Size | Thread Size | Material | Gasket Material | Max. Pressure | Each | |
NPT, NPTF Threads | |||||||
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1/4" | 1/4 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 0000000 | 000000 |
3/8" | 3/8 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/2 | __ | Zinc-Plated Steel | __ | 6,000 psi @ 72° F | 00000000 | 00000 |
UN/UNF (SAE) Threads | |||||||
1/4" | __ | 7/16"-20 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 0000000 | 00000 |
3/8" | __ | 9/16"-18 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 00000000 | 00000 |
1/2" | __ | 3/4"-16 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 00000000 | 00000 |
Fittings that swivel until tightened rotate 360° for easy installation.
For Tube OD | Pipe Size | Thread Size | Material | Max. Pressure | Each | |
NPT, NPTF Threads | ||||||
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1/4" | 1/4 | __ | Zinc-Plated Steel | 6,000 psi @ 72° F | 0000000 | 000000 |
3/8" | 1/4 | __ | Zinc-Plated Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/4 | __ | Zinc-Plated Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
UN/UNF (SAE) Threads | ||||||
1/4" | __ | 7/16"-20 | Zinc-Plated Steel | 6,000 psi @ 72° F | 0000000 | 00000 |
3/8" | __ | 7/16"-20 | Zinc-Plated Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
1/2" | __ | 7/16"-20 | Zinc-Plated Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
Use these nuts with O-ring face seal fittings and tube adapters to create a tight seal on steel tubing. Nuts are zinc-plated steel for fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Tube adapters sit flush against the flat face of an O-ring face seal fitting so you can slide the tubing and fitting sideways to disconnect in cramped spaces. To install, weld a tube adapter to the tubing with a brazing ring, then mate the tube adapter to an O-ring face seal fitting and screw on the nut. Adapters are zinc-plated steel for fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Use these brazing rings to weld tubing to an O-ring face seal adapter (sold separately).
For technical drawings and 3-D models, click on a part number.
A tube adapter sits flush against the flat face of the fitting so you can slide the tubing and fitting sideways to disconnect in cramped spaces. Fittings are also known as zero-clearance fittings. To install, weld a tube adapter to the tubing with a brazing ring, then mate the tube adapter to the fitting and screw on the nut. As the nut is tightened, the tube adapter compresses the O-ring, creating a strong seal. Fittings are 316 stainless steel for excellent corrosion resistance. Nuts, tube adapters, and brazing rings are sold separately.
NPTF (Dryseal) threads are compatible with NPT threads.
UN/UNF (SAE) threads are also known as O-ring boss threads. Male threads with a gasket provide extra protection against leaks.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Pipe Size | Thread Size | Material | Gasket Material | Max. Pressure | Each | |
NPTF Threads | |||||||
---|---|---|---|---|---|---|---|
1/4" | 1/4 | __ | 316 Stainless Steel | __ | 4,000 psi @ 72° F | 0000000 | 000000 |
3/8" | 3/8 | __ | 316 Stainless Steel | __ | 3,300 psi @ 72° F | 0000000 | 00000 |
1/2" | 1/2 | __ | 316 Stainless Steel | __ | 2,400 psi @ 72° F | 0000000 | 00000 |
UN/UNF (SAE) Threads | |||||||
1/4" | __ | 7/16"-20 | 316 Stainless Steel | Buna-N Rubber | 4,000 psi @ 72° F | 00000000 | 00000 |
3/8" | __ | 9/16"-18 | 316 Stainless Steel | Buna-N Rubber | 3,300 psi @ 72° F | 00000000 | 00000 |
1/2" | __ | 3/4"-16 | 316 Stainless Steel | Buna-N Rubber | 2,400 psi @ 72° F | 00000000 | 00000 |
Fittings that swivel until tightened rotate 360° for easy installation.
Female fittings mate with another O-ring face seal fitting without the need for a nut or a tube adapter.
For Tube OD | Pipe Size | Thread Size | Material | Max. Pressure | Each | |
NPTF Threads | ||||||
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1/4" | 1/4 | __ | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000000 |
3/8" | 3/8 | __ | 316 Stainless Steel | 3,300 psi @ 72° F | 00000000 | 000000 |
1/2" | 1/2 | __ | 316 Stainless Steel | 2,400 psi @ 72° F | 00000000 | 000000 |
UN/UNF (SAE) Threads | ||||||
1/4" | __ | 7/16"-20 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
3/8" | __ | 9/16"-18 | 316 Stainless Steel | 3,300 psi @ 72° F | 00000000 | 000000 |
1/2" | __ | 3/4"-16 | 316 Stainless Steel | 2,400 psi @ 72° F | 00000000 | 000000 |
Fittings that swivel until tightened rotate 360° for easy installation.
Female fittings mate with another O-ring face seal fitting without the need for a nut or a tube adapter.
For Tube OD | Pipe Size | Thread Size | Material | Max. Pressure | Each | |
NPTF Threads | ||||||
---|---|---|---|---|---|---|
1/4" | 1/4 | __ | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000000 |
3/8" | 1/4 | __ | 316 Stainless Steel | 3,300 psi @ 72° F | 00000000 | 000000 |
1/2" | 1/4 | __ | 316 Stainless Steel | 2,400 psi @ 72° F | 00000000 | 000000 |
UN/UNF (SAE) Threads | ||||||
1/4" | __ | 7/16"-20 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
3/8" | __ | 7/16"-20 | 316 Stainless Steel | 3,300 psi @ 72° F | 00000000 | 000000 |
1/2" | __ | 7/16"-20 | 316 Stainless Steel | 2,400 psi @ 72° F | 00000000 | 000000 |
Tube adapters sit flush against the flat face of an O-ring face seal fitting so you can slide the tubing and fitting sideways to disconnect in cramped spaces. To install, weld a tube adapter to the tubing with a brazing ring, then mate the tube adapter to an O-ring face seal fitting and screw on the nut. Tube adapters are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Use these nuts with O-ring face seal fittings and tube adapters to create a tight seal on stainless steel tubing. They are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Also known as check valves, these open to allow flow in one direction and close when flow stops or reverses.
Valves with a poppet have internal components that can handle any flow rates. The higher the flow rate of the hydraulic fluid coming into the valve, the lower the pressure the fluid is as it leaves the valve.
UN/UNF (SAE) thread connections have straight threads and are also known as O-ring Boss fittings.
UN/UNF (ORFS) threads are also known as O-ring face seal threads.
For technical drawings and 3-D models, click on a part number.
Inlet Connection | Outlet Connection | |||||||||||||
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Thread Size | Dash Size | Thread Size | Dash Size | Max. Flow Rate | Flow Coefficient (Cv) | Max. Pressure, psi | Min. Opening Pressure, psi | Seal Material | Port-to-Port Lg. | Hex Wd. | Mounting Orientation | Temp. Range, °F | Each | |
Steel Body | ||||||||||||||
7/16"-20 | 04 | 9/16"-18 | 04 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 1/8" | 5/8" | Any Position | -40° to 250° | 0000000 | 000000 |
9/16"-18 | 06 | 11/16"-16 | 06 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 1/8" | 3/4" | Any Position | -40° to 250° | 0000000 | 00000 |
3/4"-16 | 08 | 13/16"-16 | 08 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 3/8" | 7/8" | Any Position | -40° to 250° | 0000000 | 000000 |
7/8"-14 | 10 | 1"-14 | 10 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 5/8" | 1 1/8" | Any Position | -40° to 250° | 0000000 | 000000 |
1 1/16"-12 | 12 | 1 3/16"-12 | 12 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 7/8" | 1 1/4" | Any Position | -40° to 250° | 0000000 | 000000 |
1 5/16"-12 | 16 | 1 7/16"-12 | 16 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 2" | 1 1/2" | Any Position | -40° to 250° | 0000000 | 000000 |
Inlet Connection | Outlet Connection | |||||||||||||
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Thread Size | Dash Size | Thread Size | Dash Size | Max. Flow Rate | Flow Coefficient (Cv) | Max. Pressure, psi | Min. Opening Pressure, psi | Seal Material | Port-to-Port Lg. | Hex Wd. | Mounting Orientation | Temp. Range, °F | Each | |
Steel Body | ||||||||||||||
9/16"-18 | 04 | 7/16"-20 | 04 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 1/8" | 5/8" | Any Position | -40° to 250° | 0000000 | 000000 |
11/16"-16 | 06 | 9/16"-18 | 06 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 1/8" | 3/4" | Any Position | -40° to 250° | 0000000 | 00000 |
13/16"-16 | 08 | 3/4"-16 | 08 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 3/8" | 7/8" | Any Position | -40° to 250° | 0000000 | 000000 |
1"-14 | 10 | 7/8"-14 | 10 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 5/8" | 1 1/8" | Any Position | -40° to 250° | 0000000 | 000000 |
1 3/16"-12 | 12 | 1 1/16"-12 | 12 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 1 7/8" | 1 1/4" | Any Position | -40° to 250° | 0000000 | 000000 |
1 7/16"-12 | 16 | 1 5/16"-12 | 16 | Not Rated | Not Rated | 5,000 | 5 | Buna-N Rubber | 2" | 1 1/2" | Any Position | -40° to 250° | 0000000 | 000000 |