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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About Actuated On/Off Valves
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Low-Pressure Stainless Steel Threaded Pipe Fittings
Use these fittings in a low-pressure pipe line. 304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Plugs with magnet attract metal debris that could otherwise damage your system.
NPTF (Dryseal) threads and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class:
NPTF: 150 - Specifications Met:
Metric and BSPP: DIN 908 - Pipe Nipples and Pipe:
NPTF: Use Schedule 40 stainless steel - Flanges:
NPTF: Use Class 150 stainless steel
Premium Low-Pressure Stainless Steel Threaded Pipe Fittings with Certification
Unlike other stainless steel fittings, these are made in the U.S.A. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition. All fittings except 1/4" and 3/8" plugs and plugs with hex drive adhere to ANSI/MSS SP-114 standards for heat treating, material thickness, and marking. It’s the highest quality standard for Pressure Class 150 low-pressure stainless steel fittings. They also meet either ASTM A351 or A479 requirements for parts that will be used in pressure systems.
These stainless steel fittings are more corrosion resistant than steel fittings, and almost as strong. 316 stainless steel fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Fabrication: Heat Treated
- Specifications Met: See table
- Certification: Material Certificate with Traceable Lot Number
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Pipe Size  | Drive Size | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPTF Male | ||||||
| 2 | 1" | 270 psi @ 72° F | 150 psi @ 350° F | ASME B16.14, ASTM A276, ASTM A479 | 0000000 | 000000 |
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Fabrication: Heat Treated
- Specifications Met: See table
- Certification: Material Certificate with Traceable Lot Number
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
316 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| Pipe Size | Drive Size | Pressure Class | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPTF Male | |||||||
| 2 | 2 1/2" | 1000 | 1,000 psi @ 72° F | 650 psi @ 350° F | ANSI/MSS SP-114, ASTM A276, ASTM A479 | 0000000 | 000000 |
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Fabrication: Heat Treated
- Specifications Met: See table
- Certification: Material Certificate with Traceable Lot Number
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPTF Male | ||||||
| 2 | 1000 | 1,000 psi @ 72° F | 650 psi @ 350° F | ANSI/MSS SP-114, ASME B16.14, ASTM A276, ASTM A479 | 0000000 | 000000 |
High-Pressure Stainless Steel Threaded SAE Pipe Flanges
Also known as Code 61 SAE hydraulic flanges, these let you create an access point in a high-pressure hydraulic line. To connect, bolt flanges to equipment, or bolt a flange with an O-ring groove surface to a flange with a flat surface of the same size. Flanges are 316 stainless steel for excellent corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- Specifications Met: SAE J518, ISO 6162
- For Use With: Hydraulic Fluid
Flange | Bolt Hole | 316/316L Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
NPTF | |||||||||||||
| 2 | 2 | 32 | 1,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | No | 1/2" | 0.422" | 4 | 1.688", 3.062" | 0000000 | 0000000 |
- Specifications Met: SAE J518, ISO 6162
- For Use With: Hydraulic Fluid
Flange | Bolt Hole | 316/316L Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
NPTF | |||||||||||||
| 2 | 2 | 32 | 1,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | Yes | 1/2" | 0.531" | 4 | 1.688", 3.062" | 0000000 | 0000000 |
High-Pressure Stainless Steel Threaded SAE Two-Piece Pipe Flanges
Combine an adapter with a two-piece pipe flange (sold separately) to build a customized flange connection. Also known as Code 61 or Code 62 split flanges, the two halves of the flange clamp around the adapter and bolt to another Code 61 or Code 62 flange. Flanges and adapters are 316 stainless steel which has excellent corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
316/316L Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Pipe Size | For SAE Flange Size | Dash Size | Max. Pressure | For Flanged Connection Surface | Each | |
NPTF | ||||||
| 2 | 2 | 32 | 3,000 psi @ 72° F | O-Ring Groove | 0000000 | 0000000 |
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
Flange | For Bolt | 316/316L Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Flanged Connection Surface | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
Inch | |||||||||||||
| 2 | 32 | 3,000 psi @ 72° F | 4" | 3 13/16" | 1 1/32" | O-Ring Groove | Yes | 1/2" | 0.531" | 4 | 1.688", 3.062" | 0000000 | 0000000 |
Metric | |||||||||||||
| 2 | 32 | 3,000 psi @ 72° F | 102mm | 97mm | 26mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 43mm, 78mm | 0000000 | 000000 |
Extreme-Pressure Stainless Steel Threaded Pipe Fittings
With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines. 316 stainless steel fittings have excellent corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Hydraulic Fluid, Oil, Water
- Specifications Met:
BSPP: ISO 1179, ISO 8434-6
316 Stainless Steel | ||||
|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Pressure | Each | |
NPTF Female | ||||
| 2 | 32 | 2,400 psi @ 72° F | 000000000 | 0000000 |
Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant
The male threads on these fittings have a sealant applied for extra leak protection. Fittings are made of galvanized iron or steel, which have fair corrosion resistance. Also known as Pressure Class 125 or 150 fittings, they are for use in low-pressure applications.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Oil, Natural Gas, Water
- Pressure Class: 150
- Specifications Met: See table
- Pipe Nipples and Pipe: Use Schedule 40 galvanized steel
- Flanges: Use Class 150 galvanized steel
| Pipe Size | Drive Size | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPTF Male | ||||||
|---|---|---|---|---|---|---|
| 2 | 1" | 150 psi @ 72° F | Not Rated | ASME B16.14 | 0000000 | 000000 |
- For Use With: Air, Oil, Natural Gas, Water
- Pressure Class: 150
- Specifications Met: See table
- Pipe Nipples and Pipe: Use Schedule 40 galvanized steel
- Flanges: Use Class 150 galvanized steel
| Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPTF Male | ||||||
|---|---|---|---|---|---|---|
| 2 | Solid | 150 psi @ 72° F | Not Rated | ASME B16.14 | 0000000 | 000000 |
High-Pressure Steel Threaded SAE Pipe Flanges
Also known as Code 61 SAE hydraulic flanges, these let you create an access point in a high-pressure hydraulic line. To connect, bolt flanges to equipment, or bolt a flange with an O-ring groove surface to a flange with a flat surface of the same size. Flanges are for use in noncorrosive environments.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
Flange | Bolt Hole | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | SAE Flange Size | Max. Pressure | Ht. | Wd. | Dp. | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
NPTF | |||||||||||||
| 2 | 32 | 2 | 3,000 psi @ 72° F | 4" | 3 1/4" | 1 3/4" | No | 1/2" | 1/2" | 4 | 1.688", 3.063" | 0000000 | 000000 |
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
High-Pressure Steel Threaded SAE Two-Piece Pipe Flanges
Combine an adapter with a two-piece pipe flange (sold separately) to build a customized flange connection. Also known as Code 61 or Code 62 split flanges, the two halves of the flange clamp around the adapter and bolt to another Code 61 or Code 62 flange. The adapters have NPTF (Dryseal) threads, so they’re compatible with NPT threads. Flanges and adapters should be used in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
Flange | Bolt Hole | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Flanged Connection Surface | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
Inch | |||||||||||||
| 2 | 32 | 3,000 psi @ 72° F | 4" | 3 13/16" | 1 1/32" | O-Ring Groove | Yes | 1/2" | 0.53" | 4 | 1 11/16" , 3 1/16" | 0000000 | 000000 |
| 2 | 32 | 6,000 psi @ 72° F | 5 1/4" | 4 1/2" | 2 1/16" | O-Ring Groove | Yes | 3/4" | 0.78" | 4 | 1 3/4" , 3 13/16" | 0000000 | 000000 |
Metric | |||||||||||||
| 2 | 32 | 3,000 psi @ 72° F | 102mm | 97mm | 26mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 43mm , 78mm | 0000000 | 00000 |
| 2 | 32 | 6,000 psi @ 72° F | 5 1/4" | 4 1/2" | 2 1/16" | O-Ring Groove | Yes | 20mm | 21mm | 4 | 1 3/4" , 3 13/16" | 0000000 | 000000 |
Compact Extreme-Pressure Steel Threaded Pipe Fittings
These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized and zinc-plated steel, which have better corrosion resistance than plain steel fittings.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: See table
- Specifications Met:
NPTF and UN/UNF (SAE Straight): ASTM A108
BSPP: ISO 1179, ISO 8434-6
BSPT: DIN EN 10226-1, ISO 7-1
| Pipe Size | Dash Size | Max. Pressure | Material | For Use With | Each | |
NPTF Male | ||||||
|---|---|---|---|---|---|---|
| 2 | 32 | 2,000 psi @ 72° F | Zinc Plated Steel | Air, Hydraulic Fluid, Water | 000000000 | 000000 |
- For Use With: Air, Hydraulic Fluid, Water
- Specifications Met: ASTM A576
| Pipe Size | Dash Size | Max. Pressure | Material | Each | |
NPTF Female | |||||
|---|---|---|---|---|---|
| 2 | 32 | 2,000 psi @ 72° F | Zinc Plated Steel | 000000000 | 0000000 |
- For Use With:
NPTF and UN/UNF (SAE Straight): Air, Hydraulic Fluid, Water
Metric, BSPP and BSPT: Air, Hydraulic Fluid, Oil, Water - Specifications Met: See table
| Pipe Size | Dash Size | Drive Size | Max. Pressure | Material | Specifications Met | Each | |
NPTF Male | |||||||
|---|---|---|---|---|---|---|---|
| 2 | 32 | 3/4" | 2,000 psi @ 72° F | Zinc Plated Steel | ASTM A108 | 000000000 | 000000 |
- For Use With: See table
- Specifications Met: See table
| Pipe Size | Dash Size | Plug Construction | Max. Pressure | Material | For Use With | Specifications Met | Each | |
NPTF Male | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2 | 32 | Hollow | 2,000 psi @ 72° F | Zinc Plated Steel | Air, Hydraulic Fluid, Water | ASTM A108 | 000000000 | 000000 |
High-Pressure Brass Threaded Pipe Fittings
These fittings have the strength to handle high-pressure applications. They are brass for good corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
37° Flared Fittings for Steel Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Tubing: Use with seamless steel
- Specifications Met: SAE J514
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately. Fittings are zinc-plated steel for fair corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: -60° to 400° F
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
|---|---|---|---|---|---|
| 2" | 2 | Zinc-Plated Steel | 1,100 psi @ 72° F | 00000000 | 000000 |
- Temperature Range: -60° to 400° F
Fittings that swivel until tightened have a built-in nut that rotates 360° for easy installation.
Fittings with female tube end have an internal flare that mates with the male tube end of another fitting.
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
|---|---|---|---|---|---|
| 2" | 2 | Zinc-Plated Steel | 1,500 psi @ 72° F | 000000000 | 0000000 |
- Temperature Range: NPT: -65° to 400° F
NPTF and BSPT: -60° to 400° F
Metric and BSPP with O-Rings: -30° to 200°F
BSPP with Washers: -20° to 212° F
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
|---|---|---|---|---|---|
| 2" | 2 | Zinc-Plated Steel | 1,000 psi @ 72° F | 000000000 | 000000 |
- Temperature Range: -60° to 400° F
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.
For Tube OD | ||||
|---|---|---|---|---|
| Inch | Sleeve Material | Max. Pressure | Each | |
Inch Sleeves | ||||
| 1 1/2" | Zinc-Plated Steel | 1,500 psi @ 72° F | 00000000 | 000000 |
- Temperature Range: -60° to 400° F
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 1 1/2" | Zinc-Plated Steel | 1,500 psi @ 72° F | 00000000 | 000000 |
Open-Flow Quick-Disconnect Hose Couplings for Air and Water
Couplings allow for maximum flow because there’s no shut-off valve in the plug or the socket. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Open-Flow plugs are compatible with any of the Open-Flow sockets of the same coupling size, regardless of the pipe size. They are compatible with Hansen ST, Parker ST, and Perfecting E couplings.
Plugs are also known as nipples.
Sockets are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.
303 stainless steel plugs and sockets have very good corrosion resistance. They’re the best choice for high-humidity environments.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: There is no valve in these couplings. Stop the air and water flow before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -40° to 250° F
- Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Max. Pressure | Each | |
303 Stainless Steel | ||||||
| 2 | 1/4" | 2 3/16" | 2 | 1,500 psi @ 72° F | 00000000 | 0000000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 250° F
- Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings
For Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Max. Pressure | Each | |
303 Stainless Steel | ||||||
| 2 | 1/4" | 2 3/16" | 2 | 1,500 psi @ 72° F | 00000000 | 000000000 |
Minimal-Spill Push-and-Turn Hose Couplings for Petroleum
Also known as dry disconnects and double shut-off couplings, these couplings make connecting and disconnecting your line quick and virtually spill-free. Simply push the socket onto the plug and twist 90° to connect. Both the plug and the socket have a shut-off valve that only opens when they’re connected and you turn the handle on the socket. Before you disconnect the coupling, you’ll need to close the valve by moving the handle back to its original position. A close fit between the plug and socket means there's little room for fluid to escape when you disconnect them. The socket swivels, so you won’t have to twist your hose to attach the plug.
Built to stand up to petroleum products, such as diesel fuel and gasoline, their body and gasket are made from materials that won’t corrode from oil.
A complete coupling consists of a plug and a socket (both sold separately). These couplings are compatible with Emco Wheaton Dry-Break couplers.
Couplings with a fluoroelastomer gasket withstand higher temperatures than those with a Buna-N gasket.
For technical drawings and 3-D models, click on a part number.
- For Use With: Diesel Fuel, Fuel Oil, Gasoline, Mineral Oil, Vegetable Oil
- Maximum Pressure: 85 psi @ 72° F
- Temperature Range: See table
Motor-Driven On/Off Valves
- Valve Type: Ball
- For Use With: Water, Oil, Air, Argon, Helium, Neon, Steam, Xenon, Krypton
- Seal Material : PTFE Plastic
Also known as actuated ball valves, these have a motor that can handle high flow rates and pressures. All operate on electricity to automatically start and stop flow. Valves can be wired as normally closed unless actuated or normally open unless actuated. They don’t require a minimum pressure drop between the inlet and outlet for operation.
The actuator is directly mounted to the valve body to minimize movement and reduce wear. A visual flow indicator on the top of the actuator shows whether the valve is open or closed. The manual override allows you to operate the valve during power outages.
316 stainless steel valves are more corrosion resistant than brass valves.
Standard-port valves 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.
Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Gender | Thread Type | Port Type | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Pressure Drop | Actuation Time, sec. | Temp. Range, °F | Valve Lg. | Lg. | Ht. | Each | |
Brass Body with Screw Terminals | ||||||||||||||
Normally Open or Normally Closed—120V AC | ||||||||||||||
| 2 | Female | NPTF | Standard | 60 | 720 psi @ 150° F | 150 psi @ 366° F | Zero Pressure Drop | 6 | -20° to 400° | 4 1/16" | 6 1/4" | 10 9/16" | 00000000 | 000000000 |
316 Stainless Steel Body with Screw Terminals | ||||||||||||||
Normally Open or Normally Closed—120V AC | ||||||||||||||
| 2 | Female | NPTF | Standard | 60 | 720 psi @ 150° F | 150 psi @ 366° F | Zero Pressure Drop | 10 | -20° to 400° | 4 1/16" | 6 1/4" | 10 9/16" | 00000000 | 00000000 |