Material Material |
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Connection Style Connection Style |
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Flanged |
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Slip-On Weld |
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Butt Weld |
Specifications Met Specifications Met |
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For Use With For Use With |
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Maximum Steam Pressure Maximum Steam Pressure |
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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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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. Flanges are for use with low-pressure applications in noncorrosive environments.
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.
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 | DN Flange Size | Wall Thick., mm | Flange OD, mm | For Bolt Dia., mm | Dia. | No. of | Bolt Circle Dia., mm | Construction | Max. Pressure | Max. Steam Pressure | Each | |
1 | 25 | 3.378 | 115 | 12 | 14 | 4 | 85 | Welded | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 3.912 | 165 | 16 | 18 | 4 | 125 | Welded | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
3 | 80 | 5.486 | 200 | 16 | 18 | 8 | 160 | Welded | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
4 | 100 | 6.02 | 220 | 16 | 18 | 8 | 180 | Welded | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
Bolt Hole | ||||||||||
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Pipe Size | DN Flange Size | Flange OD, mm | For Bolt Dia., mm | Dia. | No. of | Bolt Circle Dia., mm | Max. Pressure | Max. Steam Pressure | Each | |
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
Bolt Hole | ||||||||||
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Pipe Size | DN Flange Size | Flange OD, mm | For Bolt Dia., mm | Dia. | No. of | Bolt Circle Dia., mm | Max. Pressure | Max. Steam Pressure | Each | |
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 180 psi @ 300° F | 0000000 | 00000 |
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.
304 stainless steel flanges offer very good corrosion resistance, and 316 stainless steel flanges have excellent corrosion resistance.
Forged flanges have better strength than cast flanges.
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. 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 | DN Flange Size | Construction | Flange OD, mm | For Bolt Dia., mm | Dia., mm | No. of | Bolt Circle Dia., mm | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | |||||||||||
1 | 25 | Seamless | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 0000000 |
2 | 50 | Seamless | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
3 | 80 | Seamless | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
4 | 100 | Seamless | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
6 | 150 | Seamless | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
316/316L Stainless Steel | |||||||||||
1 | 25 | Seamless | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
2 | 50 | Seamless | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
3 | 80 | Seamless | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
4 | 100 | Seamless | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
6 | 150 | Seamless | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
Bolt Hole | ||||||||||
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Pipe Size | DN Flange Size | Flange OD, mm | For Bolt Dia., mm | Dia., mm | No. of | Bolt Circle Dia., mm | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||||||
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
6 | 150 | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 00000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
6 | 150 | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
Bolt Hole | ||||||||||
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Pipe Size | DN Flange Size | Flange OD, mm | For Bolt Dia., mm | Dia., mm | No. of | Bolt Circle Dia., mm | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||||||
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
6 | 150 | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 125 psi @ 300° F | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
1 | 25 | 115 | 12 | 14 | 4 | 85 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
2 | 50 | 165 | 16 | 18 | 4 | 125 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
3 | 80 | 200 | 16 | 18 | 8 | 160 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
4 | 100 | 220 | 16 | 18 | 8 | 180 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |
6 | 150 | 285 | 20 | 22 | 8 | 240 | 230 psi @ 72° F | 145 psi @ 300° F | 0000000 | 000000 |