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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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Low-Pressure Steel Threaded Pipe Flanges
Use these flanges for low-pressure applications in noncorrosive environments. Bolt two flanges of the same size together with a gasket (sold separately) to create an access point within a line.
Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
Reducing Flanges
Front
Raised Surface on Back
- For Use With:
1/4 Pipe Size: Air, Natural Gas, Oil, Water
All other sizes: Air, Natural Gas, Oil, Steam, Water - Specifications Met:
1/4 Pipe Size: ASTM A105, MSS SP-6
All other sizes: ASME B16.5, ASTM A105, MSS SP-25, MSS SP-6 - Fittings: Use Class 125 or 150 iron and steel
- Pipe Nipples and Pipe: Use Schedule 40 Steel
Bolt Hole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | For Flange Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT | |||||||||||
| 1/4 | 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3.12" | Not Rated | __ | Steel | 0000000 | 000000 |
| 1/2 | 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 1/2 | 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3.12" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 1/2 | 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3.88" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 1/2 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1/2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1/2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 3/4 | 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3.12" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 3/4 | 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3.88" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 3/4 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 3/4 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 3/4 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3.88" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 1 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/4 | 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3.88" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 00000 |
| 1 1/4 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/4 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/4 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/2 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/2 | 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 | 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 1/2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 1/2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 3 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 4 | 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 5 | 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
| 6 | 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 000000 |
High-Pressure Steel Threaded Pipe Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: 1500
- Specifications Met:
1/2 to 2 Pipe Sizes: ASME B16.5, ASTM A105, MSS SP-25, MSS SP-6
All other sizes: ASTM A105 - Pipe Nipples and Pipe: Use Schedule 160 or XXH steel
- Fittings: Use Class 3000 or 6000 iron and steel
Also known as Pressure Class 1500 flanges, these have the strength to handle high pressures. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges are for use in noncorrosive environments.
Bolt Hole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT | |||||||||||
| 1/2 | 08 | 4 3/4" | 3/4" | 7/8" | 4 | 3 1/4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 0000000 |
| 3/4 | 12 | 5 1/8" | 3/4" | 7/8" | 4 | 3 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 | 16 | 5 7/8" | 7/8" | 1" | 4 | 4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/4 | 20 | 6 1/4" | 7/8" | 1" | 4 | 4 3/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 000000 |
| 1 1/2 | 24 | 7" | 1" | 1 1/8" | 4 | 4 7/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 000000 |
| 2 | 32 | 8 1/2" | 7/8" | 1" | 8 | 6 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Steel | 0000000 | 000000 |
Extreme-Pressure Steel Unthreaded Pipe Flanges
For excellent strength in extreme-pressure applications, choose these heavy duty Pressure Class 1500 flanges. Bolt two same-size flanges together with a gasket (sold separately) to create an access point in a pipe line. They are for 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.
Socket-connect flanges have an internal stop that supports the pipe when welding and prevents the pipe from sliding all the way through.
Cap flanges are also known as blind flanges.
Butt-Weld Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class : 1500
- Specifications Met: MSS SP-6, MSS SP-25, ASTM A105, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use Class 6000 steel
Bolt Hole | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Wall Thick. | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | For Pipe Schedule | Each | |
| 1 | 16 | 0.179" | 5 7/8" | 7/8" | 1" | 4 | 4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 0000000 |
| 1 1/2 | 24 | 0.2" | 7" | 1" | 1 1/8" | 4 | 4 7/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 000000 |
| 2 | 32 | 0.218" | 8 1/2" | 7/8" | 1" | 8 | 6 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 000000 |
| 3 | 48 | 0.216" | 10 1/2" | 1 1/4" | 1 1/4" | 8 | 8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 40 | 0000000 | 000000 |
Slip-On Weld Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class : 1500
- Specifications Met: ASME B16.5, ASTM A105, MSS SP-25, MSS SP-6
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use Class 6000 steel
Socket-Connect Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class : 1500
- Specifications Met:
3 and 4 Pipe Sizes: ASTM A105
All other sizes: ASME B16.5, ASTM A105, MSS SP-25, MSS SP-6 - Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use Class 6000 steel
Bolt Hole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | For Pipe Schedule | Each | |
| 3/4 | 12 | 5 1/8" | 3/4" | 7/8" | 4 | 3 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 0000000 |
| 1 | 16 | 5 7/8" | 7/8" | 1" | 4 | 4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 000000 |
| 1 1/2 | 24 | 7" | 1" | 1 1/8" | 4 | 4 7/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 000000 |
| 2 | 32 | 8 1/2" | 7/8" | 1" | 8 | 6 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | 80 | 0000000 | 000000 |
Caps
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class : 1500
- Specifications Met: MSS SP-6, MSS SP-25, ASTM A105, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use Class 6000 steel
Bolt Hole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | For Pipe Schedule | Each | |
| 1/2 | 08 | 4 3/4" | 3/4" | 7/8" | 4 | 3 1/4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 0000000 |
| 3/4 | 12 | 5 1/8" | 3/4" | 7/8" | 4 | 3 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 1 | 16 | 5 7/8" | 7/8" | 1" | 4 | 4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 1 1/4 | 20 | 6 1/4" | 7/8" | 1" | 4 | 4 3/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 1 1/2 | 24 | 7" | 1" | 1 1/8" | 4 | 4 7/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 2 | 32 | 8 1/2" | 7/8" | 1" | 8 | 6 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 3 | 48 | 10 1/2" | 1 1/4" | 1 1/4" | 8 | 8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
| 4 | 64 | 12 1/4" | 1.38" | 1.38" | 8 | 9 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Any | 0000000 | 000000 |
High-Pressure Stainless Steel Unthreaded Pipe Flanges
Use these heavy duty forged flanges for high-pressure applications. Bolt two flat-surface flanges or two raised-surface flanges of 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. 316 stainless steel flanges have excellent corrosion resistance.
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.
Butt-Weld Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Specifications Met:
Pressure Class 300: ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
Pressure Class 600: ASME B16.5, ASTM A182 - Certification: Material Certificate with Traceable Lot Number and Test Report
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Schedule 40 stainless steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 00000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 00000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 2 1/2 | 40 | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 4 | 64 | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 6 | 96 | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
316/316L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 00000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 00000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 00000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 2 1/2 | 40 | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 4 | 64 | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
| 6 | 96 | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 600 psi @ 72° F | 415 psi @ 360° F | 00000000 | 000000 |
Socket-Connect Flanges
Front
Raised Surface on Back
- For Use With:
4 and 6 Pipe Sizes: Air, Hydraulic Fluid, Natural Gas, Oil, Water
All other sizes: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water - Pressure Class: See table
- Specifications Met: See table
- Certification:: Material Certificate with Traceable Lot Number and Test Report
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Schedule 40 stainless steel
Bolt Hole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Specifications Met | Each | |
304/304L Stainless Steel | |||||||||||
Pressure Class 300 | |||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
316/316L Stainless Steel | |||||||||||
Pressure Class 300 | |||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | ASTM A182, MSS SP-25, MSS SP-6 | 00000000 | 000000 |
Slip-On Weld Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Specifications Met:
Pressure Class 300: ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
Pressure Class 600: ASME B16.5, ASTM A182 - Certification:: Material Certificate with Traceable Lot Number and Test Report
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Schedule 40 stainless steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Each | |
304/304L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 00000000 | 000000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 00000000 | 00000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 00000000 | 000000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 00000000 | 000000 |
| 8 | __ | 600 psi @ 72° F | 300 psi @ 360° F | 15" | 7/8" | 1" | 12 | 13" | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 00000000 | 00000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 00000000 | 000000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 00000000 | 000000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 00000000 | 000000 |
Stub-End Flanges
Flange with Straight Adapter (Front)
Flat Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Specifications Met:
Pressure Class 300: ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
Pressure Class 600: ASME B16.5, ASTM A182 - Certification:: Material Certificate with Traceable Lot Number and Test Report
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Schedule 40 stainless steel
Flanges | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bolt Hole | Straight Adapters | |||||||||||
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Each | Each | ||
304/304L Stainless Steel | ||||||||||||
Pressure Class 300 | ||||||||||||
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 00000000 | 000000 | 000000000 | 000000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 | 000000000 | 00000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 | 000000000 | 00000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 | 000000000 | 00000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 | 000000000 | 00000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 00000000 | 000000 | 000000000 | 00000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 00000000 | 000000 | 000000000 | 000000 |
316/316L Stainless Steel | ||||||||||||
Pressure Class 300 | ||||||||||||
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 | 000000000 | 00000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 | 000000000 | 00000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 | 000000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 | 000000000 | 00000 |
Caps
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Specifications Met:
Pressure Class 300: ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
Pressure Class 600: ASME B16.5, ASTM A182 - Certification:: Material Certificate with Traceable Lot Number and Test Report
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Schedule 40 stainless steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Each | |
304/304L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 00000000 | 000000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 00000000 | 00000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 00000000 | 000000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 00000000 | 000000 |
| 8 | __ | 600 psi @ 72° F | 300 psi @ 360° F | 15" | 7/8" | 1" | 12 | 13" | 0000000 | 000000 |
| 10 | __ | 600 psi @ 72° F | 300 psi @ 360° F | 17 1/2" | 1" | 1.12" | 16 | 15 1/4" | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 600 psi @ 72° F | 300 psi @ 360° F | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 00000000 | 00000 |
| 3/4 | 12 | 600 psi @ 72° F | 300 psi @ 360° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 00000000 | 00000 |
| 1 | 16 | 600 psi @ 72° F | 300 psi @ 360° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 00000000 | 00000 |
| 1 1/4 | 20 | 600 psi @ 72° F | 300 psi @ 360° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 00000000 | 000000 |
| 1 1/2 | 24 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 00000000 | 000000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 000000 |
| 2 1/2 | 40 | 600 psi @ 72° F | 300 psi @ 360° F | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 00000000 | 000000 |
| 3 | 48 | 600 psi @ 72° F | 300 psi @ 360° F | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 00000000 | 000000 |
| 4 | 64 | 600 psi @ 72° F | 300 psi @ 360° F | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 00000000 | 000000 |
| 6 | 96 | 600 psi @ 72° F | 300 psi @ 360° F | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 00000000 | 000000 |
| 8 | __ | 600 psi @ 72° F | 300 psi @ 360° F | 15" | 7/8" | 1" | 12 | 13" | 00000000 | 000000 |