Type Type |
|---|
 |  |
| Flange | Adapter |
 |  |
| Reducing Adapter | Cap |
Material Material |
|---|
|
Connection Style Connection Style |
|---|
 |
| Flanged |
 |
| Threaded |
 |
| Butt Weld |
 |
| Slip-On Weld |
 |
| Socket Connect |
 |
| Stub End |
For Pipe Material For Pipe Material |
|---|
|
For Use With For Use With |
|---|
Bolt Circle Diameter Bolt Circle Diameter |
|---|
|
|
|
Maximum Pressure Maximum Pressure |
|---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
Maximum Steam Pressure Maximum Steam Pressure |
|---|
|
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 Stainless Steel Unthreaded Pipe Flanges
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. Cast flanges are also called MSS 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. 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. Reducing flanges let you transition your piping system to a smaller pipe; attach to a flange with a larger pipe size but with the same flange dimensions. Cap flanges are also known as blind flanges.
For technical drawings and 3-D models, click on a part number.
Inch Butt-Weld Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met: ASTM A182, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Construction | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | Seamless | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | Seamless | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | Seamless | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | Seamless | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | Seamless | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | Seamless | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 000000 |
| 2 1/2 | Seamless | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | Seamless | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 4 | Seamless | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 6 | Seamless | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 8 | Seamless | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 10 | Seamless | 16" | 7/8" | 1" | 12 | 14 1/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 12 | Seamless | 19" | 7/8" | 1" | 12 | 17" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Socket-Connect Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met
4-8 pipe size: ASTM 182
All other pipe sizes: ASME B16.5, ASTM A182 - Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 000000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Inch Slip-On Weld Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met: ASTM A182, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Stub-End Flanges—Forged
Flange with Straight Adapter (Front)
Flat Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met: ASTM A182, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bolt Hole | Thin-Wall Straight Adapters | Standard-Wall Straight Adapters | ||||||||||
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | Each | |||
304/304L Stainless Steel | ||||||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
316/316L Stainless Steel | ||||||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
Slip-On Weld Reducing Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Class: 150
- Specifications Met: ASME B16.5
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | For Flange Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Diameter | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||||||
| 3/4 | 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 1/2 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 4 | 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 6 | 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
316/316L Stainless Steel | ||||||||||
| 3/4 | 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/2 | 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3 | 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 4 | 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 6 | 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
Inch Caps—Forged
Front
Raised Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met: ASTM A182, ASME B16.5
- Certification: Material Certificate with Traceable Lot Number and Test Report
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 230 psi @ 72° F | 000000000 | 00000 | 000000000 | 000000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 230 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Slip-On Weld Flanges—Cast
Front
Flat Surface on Back
- For Use With: Air, Water, Natural Gas, Oil
- Class: 150
- Specifications Met: ASTM A341, MSS SP-51
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304 Stainless Steel | 316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 000000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Caps—Cast
Front
Flat Surface on Back
- For Use With: Air, Water, Natural Gas, Oil
- Class: 150
- Specifications Met: MSS SP-42, ASTM A341
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | 304 Stainless Steel | 316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 | 000000000 | 000000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 000000 | 000000000 | 000000 |
Low-Pressure Press-Connect Stainless Steel Unthreaded Pipe Fittings
- For Use With:
304 Stainless Steel: Air, Ethylene Glycol, Propylene Glycol, Water, Diesel Fuel, Fuel Oil
316 Stainless Steel: Drinking Water, Isopropyl Alcohol, Nitric Acid (10%), Phosphoric Acid (25%), Deionized Water, Anhydrous Ammonia - Maximum Pressure:
304 Stainless Steel: 125 psi @ 72° F
316 Stainless Steel: 200 psi @ 72° F - Specifications Met:
304 Stainless Steel: ASME B31.1, ASME B31.3, ASME B31.9, Uniform Mechanical Code, Uniform Plumbing Code
316 Stainless Steel: ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, NSF/ANSI 372, Uniform Mechanical Code, Uniform Plumbing Code - O-Ring Material:
304 Stainless Steel: Fluoroelastomer Rubber
316 Stainless Steel: EPDM Rubber - Pipe Nipples and Pipe: Use Schedule 10, 40 Stainless Steel
- Flanges: Use Class 150 Stainless Steel
Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat. Fittings have an internal stainless steel gripping ring and rubber O-ring that create a seal when crimped. They are designed to leak if fittings have not been crimped; a colored dot marks the leak path so it's easy to spot unsealed connections. These fittings are comparable to Viega MegaPress fittings.
Fittings comply with the Uniform Plumbing Code for plumbing systems and the Uniform Mechanical Code for HVAC and refrigeration. They also meet ANSI/ASME B31 code requirements for use in pressure piping systems.
304 stainless steel fittings resist corrosion from frequent exposure to water and fuels. They are often used for water processing lines, heating and cooling systems, and fuel lines.
316 stainless steel fittings stand up to harsh environments with constant exposure to chemical solutions. They meet NSF/ANSI Standard 61 for use with drinking water, and are often found on water and chemical processing lines in corrosive environments.
Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line.
For technical drawings and 3-D models, click on a part number.
Straight Adapters with Flange, Female Press Connect × Flanged
Straight Adapter with Flange
Bolt Hole | 304 Stainless Steel | 316 Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Socket Dp. | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Class | Lg. | Each | Each | ||
| 1/2 | 1 1/16" | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 | 2 3/16" | 00000000 | 000000 | 00000000 | 0000000 |
| 3/4 | 1 3/16" | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 | 2 25/64" | 00000000 | 000000 | 00000000 | 000000 |
| 1 | 1 3/8" | 4 3/8" | 1/2" | 5/8" | 4 | 3 1/8" | 150 | 2 11/16" | 00000000 | 000000 | 00000000 | 000000 |
| 1 1/2 | 1 7/8" | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 | 3 23/64" | 00000000 | 000000 | 00000000 | 000000 |
| 2 | 2" | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 | 3 1/2" | 00000000 | 000000 | 00000000 | 000000 |
Crimping Tools
Crimping Tool
Crimping tools seal fittings in less than five seconds. These tools are cordless, so you can take them to any job. Connect the jaw or ring that matches your pipe size to these tools, then pull the trigger to crimp the fitting. The pivoting head lets you access connections from any angle.
Battery | |||||||
|---|---|---|---|---|---|---|---|
| Voltage | No. Included | Cap., amp-hrs. | Battery Charger Included | Battery Charging Time, min. | Compatible With | Each | |
| 18V DC | 1 | 3 | Yes | 39 | Viega MegaPress Viega ProPress Viega ProPress XL-C | 00000000 | 000000000 |
Jaw and Ring Sets
Jaw and Ring Set
Jaw and ring sets include three jaws, three rings, and one ring actuator jaw. Jaws are for pipe sizes 1/2 to 1; they fit directly into the crimping tool. Rings are for pipe sizes 1 1/4 to 2; clip the ring around the fitting and use the ring actuator jaw and crimping tool to press the open ends together.
For Pipe | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Material | For Manufacturer | For Manufacturer Model No. | Compatible With | Includes | Container Type | Each | |
| 1/2, 3/4, 1, 1 1/4, 1 1/2, 2 | Stainless Steel, Steel | Ridgid | RP 340 | Viega MegaPress | One Ring Actuator Jaw Three Jaws (1/2-1 Pipe Size) Three Rings (1 1/4-2 Pipe Size) | Carrying Case | 00000000 | 000000000 |
Low-Pressure Stainless Steel Threaded Pipe Flanges
Also known as Class 150 flanges, these are designed for low-pressure pipe 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 within a line.
304 stainless steel flanges have very good corrosion resistance. 316 stainless steel flanges have excellent corrosion resistance. Alloy 20 stainless steel flanges have the best corrosion resistance of all the stainless steel flanges we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.
Forged flanges have better strength than cast flanges. They are also called ANSI flanges. Cast flanges are also called MSS flanges.
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.
For technical drawings and 3-D models, click on a part number.
Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Class: 150
- Specifications Met:
Alloy 20 flanges: ASME B16.5
All other flanges: ASME B16.5, ASTM A182 - Fittings: Use Class 150 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | |||||||||
NPT | |||||||||
| 1/2 | 3 1/2" | 1/2" | 0.625" | 4 | 2 3/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 0.625" | 4 | 2 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 0.625" | 4 | 3 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 0.625" | 4 | 3 7/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 0.75" | 4 | 5 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 0.75" | 4 | 6" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 6 | 11" | 3/4" | 0.875" | 8 | 9 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 0.88" | 8 | 11 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
BSPT | |||||||||
| 1/2 | 3 1/2" | 1/2" | 0.62" | 4 | 2 3/8" | 230 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 0.62" | 4 | 2 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 230 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 230 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
| 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
316/316L Stainless Steel | |||||||||
NPT | |||||||||
| 1/2 | 3 1/2" | 1/2" | 0.625" | 4 | 2 3/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 0.625" | 4 | 2 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 0.625" | 4 | 3 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 0.625" | 4 | 3 7/8" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 0.75" | 4 | 5 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 0.75" | 4 | 6" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 6 | 11" | 3/4" | 0.875" | 8 | 9 1/2" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 0.88" | 8 | 11 3/4" | 230 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
Alloy 20 Stainless Steel | |||||||||
NPT | |||||||||
| 1/2 | 3 1/2" | 1/2" | 0.62" | 4 | 2 3/8" | 290 psi @ 72° F | 200 psi @ 360° F | 0000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 0.62" | 4 | 2 3/4" | 290 psi @ 72° F | 200 psi @ 360° F | 0000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 290 psi @ 72° F | 200 psi @ 360° F | 0000000 | 000000 |
| 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 290 psi @ 72° F | 200 psi @ 360° F | 0000000 | 000000 |
| 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 290 psi @ 72° F | 200 psi @ 360° F | 0000000 | 000000 |
Reducing Flanges—Forged
Front
Raised Surface on Back
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Class: 150
- Specifications Met: ASTM A182, ASME B16.5
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Class 150 stainless 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 | Each | |
304/304L Stainless Steel | ||||||||||
NPT | ||||||||||
| 1/4 | 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1/2 | 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1/2 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3/4 | 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 3/4 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 3/4 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 | 1 1/4 | 4 5/8" | 1/2" | 0.62" | 4 | 3 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 | 1 1/2 | 5" | 1/2" | 0.625" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/4 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1 1/4 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/2 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 2 1/2 | 7" | 1/2" | 0.62" | 4 | 5 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 3 | 7 1/2" | 5/8" | 0.75" | 4 | 6" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3 | 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 4 | 6 | 11" | 3/4" | 0.88" | 8 | 9 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
316/316L Stainless Steel | ||||||||||
NPT | ||||||||||
| 1/4 | 1 | 4 1/4" | 1/2" | 0.62" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1/2 | 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 1/2 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3/4 | 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 |
| 3/4 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3/4 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 | 1 1/4 | 4 5/8" | 1/2" | 0.62" | 4 | 3 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 | 1 1/2 | 5" | 1/2" | 0.625" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/4 | 1 1/2 | 5" | 1/2" | 0.62" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/4 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 1 1/2 | 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 2 1/2 | 7" | 1/2" | 0.62" | 4 | 5 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 3 | 7 1/2" | 5/8" | 0.75" | 4 | 6" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 2 | 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
| 3 | 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 000000 |
| 4 | 6 | 11" | 3/4" | 0.88" | 8 | 9 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 |
Flanges—Cast
Front
Flat Surface on Back
- For Use With: Natural Gas, Steam, Oil, Water, Air
- Class: 150
- Specifications Met: MSS SP-51, ASTM A351, MSS SP-42
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Fittings: Use Class 150 stainless steel
Bolt Hole | 304 Stainless Steel | 316 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Each | Each | ||
NPT | |||||||||||
| 1/2 | 3 1/2" | 1/2" | 0.625" | 4 | 2 3/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 0.625" | 4 | 2 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 0.625" | 4 | 3 1/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 0.625" | 4 | 3 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 0.625" | 4 | 3 7/8" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 | 6" | 5/8" | 0.75" | 4 | 4 3/4" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 0.75" | 4 | 5 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 00000 | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 0.75" | 4 | 6" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 | 000000000 | 000000 |
| 4 | 9" | 5/8" | 0.75" | 8 | 7 1/2" | 150 psi @ 72° F | 150 psi @ 360° F | 000000000 | 000000 | 000000000 | 000000 |