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.
More
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. Adapters with weld end allow for a permanent connection.
Adapters for tanks create an inlet or outlet connection on the surface of any tank, pressure vessel, or drum.
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: Water, Oil, Gasoline, Diesel Fuel
316/316L Stainless Steel | ||||||
---|---|---|---|---|---|---|
Pipe Size | For Hole Dia. | OD | Lg. | For Tank OD | Each | |
NPTF Female × Weld | ||||||
1 1/2 | 2 1/16" | 3 1/4" | 1/4" | 21" | 0000000 | 000000 |
- 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
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 | |||||||||||||
1 1/2 | 1 1/2 | 24 | 1,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 45/64" | No | 1/2" | 0.422" | 4 | 1.406", 2.75" | 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 | |||||||||||||
1 1/2 | 1 1/2 | 24 | 1,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 45/64" | Yes | 1/2" | 0.531" | 4 | 1.406", 2.75" | 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 | ||||||
1 1/2 | 1 1/2 | 24 | 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 | |||||||||||||
1 1/2 | 24 | 3,000 psi @ 72° F | 3 11/16" | 3 1/4" | 1" | O-Ring Groove | Yes | 1/2" | 0.531" | 4 | 1.406", 2 3/4" | 0000000 | 0000000 |
Metric | |||||||||||||
1 1/2 | 24 | 3,000 psi @ 72° F | 94mm | 83mm | 25mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 36mm, 70mm | 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: See table
- Specifications Met: See table
316 Stainless Steel | |||||||
---|---|---|---|---|---|---|---|
Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | For Use With | Specifications Met | Each | |
NPTF Female | |||||||
1 1/2 | 24 | 2,400 psi @ 72° F | 2,400 psi @ 300° F | Hydraulic Fluid, Oil, Steam, Water | ASTM A479 | 000000000 | 0000000 |
- Specifications Met: See table
- For Use With: See table
316 Stainless Steel | ||||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Dash Size | Lg. | Max. Pressure | Max. Steam Pressure | For Use With | Specifications Met | Each | |
NPTF Male | ||||||||
1 1/2 | 24 | 2 39/64" | 3,600 psi @ 72° F | 3,600 psi @ 300° F | Hydraulic Fluid, Oil, Steam, Water | ASTM A479 | 000000000 | 0000000 |
- For Use With: Hydraulic Fluid, Oil, Steam, Water
- Specifications Met:
NPT × NPT: SAE J514
NPTF × NPTF: ASTM A479
Pipe Size | Dash Size | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPTF Male × NPTF Female | |||||||
1 1/2 | 1 | 24 | 16 | 3,600 psi @ 72° F | 3,600 psi @ 300° F | 000000000 | 0000000 |
- 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 | ||||
1 1/2 | 24 | 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, Steam, 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 | ||||||
---|---|---|---|---|---|---|
1 1/2 | 1" | 150 psi @ 72° F | 150 psi @ 360° F | ASME B16.14 | 0000000 | 000000 |
- For Use With: Air, Oil, Natural Gas, Steam, 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 | ||||||
---|---|---|---|---|---|---|
1 1/2 | Solid | 150 psi @ 72° F | 150 psi @ 360° F | 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 | |||||||||||||
1 1/2 | 24 | 1 1/2 | 3,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 3/4" | No | 0.438" | 1/2" | 4 | 1.406", 2.75" | 0000000 | 000000 |
- 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—Inch | |||||||||||||
1 1/2 | 24 | 1 1/2 | 3,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 3/4" | Yes | 0.438" | 0.53" | 4 | 1.406", 2.75" | 0000000 | 000000 |
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 | |||||||||||||
1 1/2 | 24 | 3,000 psi @ 72° F | 3 11/16" | 3 1/4" | 1" | O-Ring Groove | Yes | 0.438" | 0.47" | 4 | 1 13/32" , 2 3/4" | 000000 | 000000 |
1 1/2 | 24 | 6,000 psi @ 72° F | 4 7/16" | 3 3/4" | 1 11/16" | O-Ring Groove | Yes | 5/8" | 0.66" | 4 | 1 7/16" , 3 1/8" | 0000000 | 000000 |
Metric | |||||||||||||
1 1/2 | 24 | 3,000 psi @ 72° F | 94mm | 83mm | 25mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 36mm , 70mm | 0000000 | 00000 |
1 1/2 | 24 | 6,000 psi @ 72° F | 113mm | 95mm | 43mm | O-Ring Groove | Yes | 16mm | 17mm | 4 | 37mm , 80mm | 000000 | 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.
Female x male 90° elbow adapters are also known as street elbows. Right-angle tees are also known as run tees.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With:
NPTF: Air, Hydraulic Fluid, Water
Metric: Air, Hydraulic Fluid, Oil, Water - Specifications Met:
NPTF: ASTM A108
Metric: DIN 7631, ISO 6149, ISO 9974
Pipe Size | Dash Size | Max. Pressure | Material | Each | |
NPTF Female | |||||
---|---|---|---|---|---|
1 1/2 | 24 | 2,000 psi @ 72° F | Zinc Plated Steel | 000000000 | 000000 |
- 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 | ||||||
---|---|---|---|---|---|---|
1 1/2 | 24 | 3,000 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 | |||||
---|---|---|---|---|---|
1 1/2 | 24 | 1,500 psi @ 72° F | Zinc Plated Steel | 000000000 | 000000 |
- For Use With: Air, Hydraulic Fluid, Water
- Specifications Met: ASTM A576
Pipe Size | Dash Size | Max. Pressure | Material | Each | |
NPTF Male | |||||
---|---|---|---|---|---|
1 1/2 | 24 | 2,500 psi @ 72° F | Zinc Plated Steel | 000000000 | 000000 |
- For Use With: Air, Hydraulic Fluid, Water
- Specifications Met: ASTM A576
Pipe Size (A) | Dash Size (A) | Pipe Size (B) | Dash Size (B) | Max. Pressure | Material | Each | |
NPT Female × NPTF Male | |||||||
---|---|---|---|---|---|---|---|
1 1/2 | 24 | 1 1/2 | 24 | 1,500 psi @ 72° F | Zinc Plated Steel | 000000000 | 000000 |
- For Use With: Air, Hydraulic Fluid, Water
- Specifications Met: ASTM A576
Pipe Size | Dash Size | Max. Pressure | Material | Each | |
NPTF Female | |||||
---|---|---|---|---|---|
1 1/2 | 24 | 1,500 psi @ 72° F | Zinc Plated Steel | 000000000 | 0000000 |
- For Use With: Air, Hydraulic Fluid, Water
- Specifications Met: ASTM A576
Pipe Size | Dash Size | Max. Pressure | Material | Each | |
NPTF Female × NPTF Male | |||||
---|---|---|---|---|---|
1 1/2 | 20 | 1,500 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 | |||||||
---|---|---|---|---|---|---|---|
1 1/2 | 24 | 1" | 3,000 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 | ||||||||
---|---|---|---|---|---|---|---|---|
1 1/2 | 24 | Hollow | 3,000 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.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Natural Gas, Oil
- Specifications Met: See table
Pipe Size | Max. Pressure | Each | |
NPTF Female | |||
---|---|---|---|
1 1/2 | 1,000 psi @ 72° F | 00000000 | 000000 |
- For Use With: Air, Water, Natural Gas, Oil
- Specifications Met: See table
Pipe Size | Max. Pressure | Each | |
NPTF Male | |||
---|---|---|---|
1 1/2 | 1,000 psi @ 72° F | 000000000 | 000000 |
- For Use With: Air, Water, Oil, Natural Gas
Pipe Size | Max. Pressure | Each | |
NPTF Female | |||
---|---|---|---|
1 1/2 | 1,000 psi @ 72° F | 000000000 | 000000 |
- For Use With: Air, Natural Gas, Oil, Water
Hollow | |||
---|---|---|---|
Pipe Size | Max. Pressure | Each | |
NPTF Male | |||
1 1/2 | 1,000 psi @ 72° F | 000000000 | 000000 |
Low-Pressure Aluminum Threaded Pipe Fittings
In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.
Adapters for tanks weld onto the surface of any tank, pressure vessel, or drum to create a permanent inlet or outlet connection. 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: Water, Oil, Gasoline, Diesel Fuel
- Pipe Nipples and Pipe: Use Schedule 40 aluminum
Pipe Size | For Hole Dia. | OD | Lg. | For Tank OD | Each | |
NPTF Female × Weld | ||||||
---|---|---|---|---|---|---|
1 1/2 | 2" | 3 1/4" | 1/4" | 36" | 0000000 | 00000 |
37° Flared Fittings for Steel Tubing
- 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.
- For Use With: See Table
- Temperature Range: See Table
For Tube OD | Pipe Size | For Use With | Material | Max. Pressure | Temp. Range, °F | Each | |
NPTF Threads | |||||||
---|---|---|---|---|---|---|---|
1 1/2" | 1 1/2 | Air, Fuel Oil, Hydraulic Fluid, Mineral Oil | Zinc-Plated Steel | 1,500 psi @ 72° F | -60° to 400° | 00000000 | 000000 |
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
---|---|---|---|---|---|
1 1/2" | 1 1/2 | Zinc-Plated Steel | 1,500 psi @ 72° F | 00000000 | 000000 |
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- 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 |
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- 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 |