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High-Pressure Stainless Steel Threaded Pipe Flanges
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: See table
- Specifications Met: ASTM A182, ASME B16.5
- Pipe Nipples and Pipe: Use Schedule 80 stainless steel
Forged for high strength, these heavy duty flanges can handle high-pressure applications. They are also known as ANSI flanges. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line.
304 stainless steel flanges provide very good corrosion resistance. 316 stainless steel flanges have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
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 | ||||||||||
NPT | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.88" | 4 | 4 1/2" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 2 1/2 | 40 | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 4 | 64 | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
Pressure Class 600 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 00000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.88" | 4 | 4 1/2" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 2 1/2 | 40 | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 4 | 64 | 10 3/4" | 7/8" | 1" | 8 | 8 1/2" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
NPT | ||||||||||
Pressure Class 300 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 00000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.88" | 4 | 4 1/2" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 2 1/2 | 40 | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
| 4 | 64 | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 600 psi @ 72° F | 300 psi @ 300° F | 0000000 | 000000 |
Pressure Class 600 | ||||||||||
| 1/2 | 08 | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 3/4 | 12 | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 | 16 | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 1/4 | 20 | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 1 1/2 | 24 | 6 1/8" | 3/4" | 0.88" | 4 | 4 1/2" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 2 | 32 | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
| 3 | 48 | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 1,200 psi @ 72° F | 840 psi @ 400° F | 0000000 | 000000 |
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. UN/UNF (SAE Straight) threads are also known as O-ring boss 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 | Thread 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 | 16 | 2,000 psi @ 72° F | 2 53/64" | 2" | 1 29/64" | No | 3/8" | 0.312" | 4 | 1.031", 2.062" | 0000000 | 0000000 |
| 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 | 000000 |
| 2 | __ | 2 | 32 | 1,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | No | 1/2" | 0.422" | 4 | 1.688", 3.062" | 0000000 | 000000 |
UN/UNF (SAE Straight) | ||||||||||||||
| __ | 2 1/2"-12 | 2 | 32 | 3,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | No | 1/2" | 0.531" | 4 | 1.688", 3.062" | 0000000 | 000000 |
- Specifications Met: SAE J518, ISO 6162
- For Use With: Hydraulic Fluid
Flange | Bolt Hole | 316/316L Stainless Steel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread 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 | ||||||||||||||
| 3/4 | __ | 3/4 | 12 | 2,500 psi @ 72° F | 2 5/8" | 1 3/4" | 1 13/64" | Yes | 3/8" | 0.406" | 4 | 0.875", 1.875" | 0000000 | 0000000 |
| 1 | __ | 1 | 16 | 2,000 psi @ 72° F | 2 53/64" | 2" | 1 29/64" | Yes | 3/8" | 0.406" | 4 | 1.031", 2.062" | 0000000 | 000000 |
| 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 | 000000 |
| 2 | __ | 2 | 32 | 1,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | Yes | 1/2" | 0.531" | 4 | 1.688", 3.062" | 0000000 | 000000 |
UN/UNF (SAE Straight) | ||||||||||||||
| __ | 1 5/16"-12 | 1 | 16 | 6,000 psi @ 72° F | 2 53/64" | 2" | 1 29/64" | Yes | 3/8" | 0.406" | 4 | 1.031", 2.062" | 0000000 | 000000 |
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. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; they have a gasket to prevent leaks.
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 | ||||||
| 3/4 | 3/4 | 12 | 5,000 psi @ 72° F | O-Ring Groove | 0000000 | 0000000 |
| 1 | 1 | 16 | 4,600 psi @ 72° F | O-Ring Groove | 0000000 | 000000 |
| 1 1/2 | 1 1/2 | 24 | 3,000 psi @ 72° F | O-Ring Groove | 0000000 | 000000 |
| 2 | 2 | 32 | 3,000 psi @ 72° F | O-Ring Groove | 0000000 | 000000 |
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
- 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 | |||||||||||||
| 3/4 | 12 | 5,000 psi @ 72° F | 2 9/16" | 2 1/16" | 7/8" | O-Ring Groove | Yes | 3/8" | 0.406" | 4 | 7/8", 1 7/8" | 0000000 | 0000000 |
| 1 | 16 | 4,600 psi @ 72° F | 2 3/4" | 2 5/16" | 15/16" | O-Ring Groove | Yes | 3/8" | 0.406" | 4 | 1.031", 2.062" | 0000000 | 000000 |
| 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 | 000000 |
| 2 | 32 | 3,000 psi @ 72° F | 4" | 3 13/16" | 1 1/32" | O-Ring Groove | Yes | 1/2" | 0.531" | 4 | 1.688", 3.062" | 0000000 | 000000 |
Metric | |||||||||||||
| 3/4 | 12 | 5,000 psi @ 72° F | 65mm | 52mm | 22mm | O-Ring Groove | Yes | 10mm | 10mm | 4 | 22mm, 48mm | 0000000 | 000000 |
| 1 | 16 | 4,600 psi @ 72° F | 70mm | 59mm | 24mm | O-Ring Groove | Yes | 10mm | 10mm | 4 | 26mm, 52mm | 0000000 | 000000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 94mm | 83mm | 25mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 36mm, 70mm | 0000000 | 000000 |
| 2 | 32 | 3,000 psi @ 72° F | 102mm | 97mm | 26mm | O-Ring Groove | Yes | 12mm | 13mm | 4 | 43mm, 78mm | 0000000 | 000000 |