Drive Style Drive Style |
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External Square | External Hex |
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Hex | Square |
For Use With For Use With |
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Maximum Pressure Maximum Pressure |
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Connection Style Connection Style |
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Threaded |
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Butt Weld |
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Flanged |
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Slip-On Weld |
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Socket Connect |
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Stub End |
Specifications Met Specifications Met |
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Maximum Steam Pressure Maximum Steam Pressure |
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Length Length |
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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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These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.
Union connectors separate into three pieces so you can access your line without unthreading pipe connections.
Tee outlets allow you to create a threaded outlet anywhere along a pipe. They are also known as branch connectors and are comparable to Thredolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Dash Size | |||||||
---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male × NPT Female | ||||||||
1/4 | 1/8 | 04 | 02 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
3/8 | 1/8 | 06 | 02 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
3/8 | 1/4 | 06 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1/2 | 1/4 | 08 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1/2 | 3/8 | 08 | 06 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
3/4 | 3/8 | 12 | 06 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
3/4 | 1/2 | 12 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 | 1/2 | 16 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 | 3/4 | 16 | 12 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 1/4 | 1/2 | 20 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 1/4 | 1 | 20 | 16 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 1/2 | 1 1/4 | 24 | 20 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
2 | 1/4 | 32 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
2 | 1 | 32 | 16 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
3 | 1/4 | 48 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
3 | 1/2 | 48 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
3 | 3/4 | 48 | 12 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
4 | 1 | 64 | 16 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 000000 |
4 | 2 | 64 | 32 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
Pipe Size | Dash Size | |||||||
---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | ||||||||
1/2 | 1/8 | 08 | 02 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
1 | 3/8 | 16 | 06 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 1/4 | 3/4 | 20 | 12 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
3 | 1 1/4 | 48 | 20 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
4 | 2 1/2 | 64 | 40 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 000000 |
Pipe Size | Dash Size | For Pipe Size | Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female × Butt Weld | ||||||||
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1/4 | 04 | 1/2 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 00000 |
3/8 | 06 | 1 1/4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
1/2 | 08 | 3/4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
3/4 | 12 | 1 1/2 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
1 | 16 | 3 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
1 1/4 | 20 | 4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 00000 |
Pipe Size | Dash Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | |||||||
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3/8 | 06 | Solid | 6,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
1/2 | 08 | Solid | 6,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
3/4 | 12 | Solid | 6,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
1 | 16 | Solid | 6,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 0000 |
With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
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1/4 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 000000 |
3/8 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
1/2 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
3/4 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
1 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
1 1/4 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
1 1/2 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
2 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
2 1/2 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
3 | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | ||||||
---|---|---|---|---|---|---|
1/2 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
3/4 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 0000 |
1 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 0000 |
1 1/4 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 0000 |
1 1/2 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 0000 |
2 | Solid | 300 psi @ 72° F | 300 psi @ 550° F | Iron | 00000000 | 00000 |
Use these fittings for low-pressure applications in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
BSPT Female | |||||
---|---|---|---|---|---|
1/4 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 00000 |
3/8 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1/2 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
3/4 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 1/4 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 1/2 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
2 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
2 1/2 | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 0000000 | 00000 |
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | ||||||
---|---|---|---|---|---|---|
2 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
3 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
4 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | ||||||
---|---|---|---|---|---|---|
2 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
3 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
4 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
BSPT Male | ||||||
1/4 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
3/8 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1/2 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
3/4 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 1/4 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
1 1/2 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
2 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 00000000 | 0000 |
2 1/2 | Hollow | 150 psi @ 72° F | 150 psi @ 360° F | Black-Coated Iron | 0000000 | 00000 |
Forged for extra strength, these heavy duty flanges can withstand high-pressure applications. Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line.
Butt-weld flanges are also known as weld-neck flanges; the flange neck has a beveled end that, when flush to pipe, creates a trough for a strong weld.
Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
Socket-connect flanges have an internal stop that supports the pipe when welding and prevents the pipe from sliding all the way through.
Stub-end flanges are also known as lap-joint flanges; use them with a stub-end straight adapter (not included). The stub-end straight adapter slides into the flange and welds to pipe (not the flange). Since the flange isn’t welded to the pipe, it can be disconnected easily for frequent cleaning and inspecting.
Cap flanges are also known as blind flanges.
For technical drawings and 3-D models, click on a part number.
Bolt Hole | ||||||||||||
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Pipe Size | Dash Size | Wall Thick. | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
300 Class | ||||||||||||
1 1/4 | 20 | 0.191" | 5 1/4" | 5/8" | 3/4" | 4 | 3 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
1 1/2 | 24 | 0.2" | 6 1/8" | 3/4" | 7/8" | 4 | 4 1/2" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 00000 |
12 | __ | 0.688" | 20 1/2" | 1 1/4" | 1 1/4" | 16 | 17 3/4" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
600 Class | ||||||||||||
1 1/2 | 24 | 0.2" | 6.12" | 0.88" | 0.88" | 4 | 4 1/2" | 1,400 psi @ 72° F | 1,300 psi @ 300° F | Black-Coated Steel | 00000000 | 00000 |
Bolt Hole | ||||||||||||
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Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Specifications Met | Each | |
300 Class | ||||||||||||
3/4 | 12 | 4 5/8" | 5/8" | 3/4" | 4 | 3 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | ANSI/ASME B16.5, ASTM A105 | 00000000 | 000000 |
5 | __ | 11" | 3/4" | 7/8" | 8 | 9 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | ANSI/ASME B16.5, ASTM A105 | 00000000 | 000000 |
600 Class | ||||||||||||
1 1/2 | 24 | 6.12" | 0.88" | 0.88" | 4 | 4 1/2" | 1,400 psi @ 72° F | 1,300 psi @ 300° F | Black-Coated Steel | ANSI/ASME B16.5, ASTM A105 | 00000000 | 00000 |
4 | 64 | 10 3/4" | 1" | 1" | 8 | 8 1/2" | Not Rated | Not Rated | Black-Coated Steel | ASTM A105 | 00000000 | 000000 |
Bolt Hole | |||||||||||
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Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
300 Class | |||||||||||
1/2 | 08 | 3 3/4" | 1/2" | 5/8" | 4 | 2 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
2 | 32 | 6 1/2" | 5/8" | 3/4" | 8 | 5" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 00000 |
3 | 48 | 8 1/4" | 3/4" | 7/8" | 8 | 6 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 00000 |
10 | __ | 17 1/2" | 1.12" | 1.12" | 16 | 15 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
Bolt Hole | |||||||||||
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Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
300 Class | |||||||||||
1 1/4 | 20 | 5 1/4" | 5/8" | 3/4" | 4 | 3 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
10 | __ | 17 1/2" | 1.12" | 1.12" | 16 | 15 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | Black-Coated Steel | 00000000 | 000000 |
600 Class | |||||||||||
2 | 32 | 6 1/2" | 3/4" | 3/4" | 8 | 5" | 1,400 psi @ 72° F | 1,300 psi @ 300° F | Black-Coated Steel | 00000000 | 00000 |