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Flanged Connection Surface Flanged Connection Surface |
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| O-Ring Groove |
Flange OD Flange OD |
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Maximum Pressure Maximum Pressure |
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Bolt Circle Diameter Bolt Circle Diameter |
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Specifications Met Specifications Met |
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For Use With For Use With |
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Bolt Hole Diameter Bolt Hole Diameter |
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Maximum Steam Pressure Maximum Steam Pressure |
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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 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. Cap flanges are also known as blind flanges.
For technical drawings and 3-D models, click on a part number.
Inch Caps—Forged
Front
Raised Surface on Back
- For Use With: Air, Water, Oil, Natural Gas
- Class: 150
- Specifications Met: ASTM A182, ANSI/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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | |
304/304L Stainless Steel | ||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 150 psi @ 72° F | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 150 psi @ 72° F | 000000000 | 000000 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 150 psi @ 72° F | 000000000 | 000000 |
316/316L Stainless Steel | ||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | 150 psi @ 72° F | 000000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | 150 psi @ 72° F | 000000000 | 000000 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | 150 psi @ 72° F | 000000000 | 000000 |
Metric Caps—Forged
Front
Raised Surface on Back
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: DIN EN 1092-1
- Fittings: Use schedule 40 stainless steel
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Each | |
304 Stainless Steel | ||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 000000 |
316 Stainless Steel | ||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | 150 psi @ 72° F | 000000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 000000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 000000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 000000000 | 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. Cap flanges are also known as blind flanges.
For technical drawings and 3-D models, click on a part number.
Caps
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Class: See table
- Specifications Met:
300 Class: ANSI/ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
600 Class: ANSI/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 | ||||||||||
300 Class | ||||||||||
| 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 | 00000 |
| 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 |
600 Class | ||||||||||
| 1/2 | 08 | 1,200 psi @ 72° F | 840 psi @ 400° F | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 0000000 | 00000 |
| 3/4 | 12 | 1,200 psi @ 72° F | 840 psi @ 400° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 0000000 | 00000 |
| 1 | 16 | 1,200 psi @ 72° F | 840 psi @ 400° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 0000000 | 00000 |
| 1 1/4 | 20 | 1,200 psi @ 72° F | 840 psi @ 400° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 0000000 | 000000 |
| 1 1/2 | 24 | 1,200 psi @ 72° F | 840 psi @ 400° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 0000000 | 000000 |
| 2 | 32 | 1,200 psi @ 72° F | 840 psi @ 400° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 0000000 | 000000 |
| 2 1/2 | 40 | 1,200 psi @ 72° F | 840 psi @ 400° F | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 0000000 | 000000 |
| 3 | 48 | 1,200 psi @ 72° F | 840 psi @ 400° F | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 0000000 | 000000 |
| 4 | 64 | 1,200 psi @ 72° F | 840 psi @ 400° F | 10 3/4" | 7/8" | 1" | 8 | 8 1/2" | 0000000 | 000000 |
316/316L Stainless Steel | ||||||||||
300 Class | ||||||||||
| 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 | 00000 |
| 2 | 32 | 600 psi @ 72° F | 300 psi @ 360° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 00000000 | 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 |
| 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 |
| 10 | __ | 600 psi @ 72° F | 300 psi @ 360° F | 17 1/2" | 1" | 1.12" | 16 | 15 1/4" | 00000000 | 000000 |
600 Class | ||||||||||
| 1/2 | 08 | 1,200 psi @ 72° F | 840 psi @ 400° F | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 0000000 | 00000 |
| 3/4 | 12 | 1,200 psi @ 72° F | 840 psi @ 400° F | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 0000000 | 00000 |
| 1 | 16 | 1,200 psi @ 72° F | 840 psi @ 400° F | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 0000000 | 00000 |
| 1 1/4 | 20 | 1,200 psi @ 72° F | 840 psi @ 400° F | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 0000000 | 000000 |
| 1 1/2 | 24 | 1,200 psi @ 72° F | 840 psi @ 400° F | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 0000000 | 000000 |
| 2 | 32 | 1,200 psi @ 72° F | 840 psi @ 400° F | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 0000000 | 000000 |
| 2 1/2 | 40 | 1,200 psi @ 72° F | 840 psi @ 400° F | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 0000000 | 000000 |
| 3 | 48 | 1,200 psi @ 72° F | 840 psi @ 400° F | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 0000000 | 000000 |
| 4 | 64 | 1,200 psi @ 72° F | 840 psi @ 400° F | 10 3/4" | 7/8" | 1" | 8 | 8 1/2" | 0000000 | 000000 |
High-Pressure Stainless Steel
Unthreaded SAE Pipe Flanges
Create an access point in a high-pressure hydraulic fluid line with these flanges. They are also known as Code 61 SAE hydraulic flanges. To connect, 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. Cap flanges are also known as blind flanges.
For technical drawings and 3-D models, click on a part number.
Caps with Flat Surface on Back
Front
Back
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
Flange | Bolt Hole | 316/316L Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
| 3/4 | 12 | 5,000 psi @ 72° F | 2 5/8" | 1 3/4" | 1 13/64" | No | 3/8" | 0.312" | 4 | 7/8", 1 7/8" | 00000000 | 0000000 |
| 1 | 16 | 4,600 psi @ 72° F | 2 53/64" | 2" | 1 29/64" | No | 3/8" | 0.312" | 4 | 1.031", 2.063" | 00000000 | 000000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 45/64" | No | 1/2" | 0.422" | 4 | 1.406", 2 3/4" | 00000000 | 000000 |
| 2 | 32 | 3,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | No | 1/2" | 0.422" | 4 | 1.688", 3.063" | 00000000 | 000000 |
Caps with O-Ring Groove Surface on Back
Front
Back
- For Use With: Hydraulic Fluid
- Specifications Met: SAE J518, ISO 6162
Flange | Bolt Hole | 316/316L Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAE Flange Size | Dash Size | Max. Pressure | Ht. | Wd. | Dp. | Mounting Hardware Included | For Bolt Dia. | Dia. | No. of | Ctr.-to-Ctr. | Each | |
Inch | ||||||||||||
| 3/4 | 12 | 5,000 psi @ 72° F | 2 5/8" | 1 3/4" | 1 13/64" | Yes | 3/8" | 0.406" | 4 | 7/8" 1 7/8" | 00000000 | 0000000 |
| 1 | 16 | 4,600 psi @ 72° F | 2 53/64" | 2" | 1 29/64" | Yes | 3/8" | 0.406" | 4 | 1.031" 2.063" | 00000000 | 000000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 3 3/4" | 2 3/4" | 1 45/64" | Yes | 1/2" | 0.531" | 4 | 1.406" 2 3/4" | 00000000 | 000000 |
| 2 | 32 | 3,000 psi @ 72° F | 4" | 3 1/4" | 1 45/64" | Yes | 1/2" | 0.531" | 4 | 1.688" 3.063" | 00000000 | 000000 |
Metric | ||||||||||||
| 3/4 | 12 | 5,000 psi @ 72° F | 67mm | 44mm | 31mm | Yes | 10mm | 10mm | 4 | 22mm 48mm | 00000000 | 000000 |
| 1 | 16 | 4,600 psi @ 72° F | 72mm | 51mm | 37mm | Yes | 10mm | 10mm | 4 | 26mm 52mm | 00000000 | 000000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 95mm | 70mm | 43mm | Yes | 12mm | 13mm | 4 | 36mm 70mm | 00000000 | 000000 |
| 2 | 32 | 3,000 psi @ 72° F | 102mm | 83mm | 43mm | Yes | 12mm | 13mm | 4 | 43mm 78mm | 00000000 | 000000 |
Ultra-High-Vacuum Flanges and
Fittings for Stainless Steel Tubing
- For Use With: Air
- Temperature Range:
Flanges: -300° to 800° F
Gaskets: Not Rated - Tubing: Use with 304/304L and 316/316L stainless steel
- Specifications Met:
Flanges: ASTM A240, ASTM E45, ASTM E12
Gaskets: ASTM B152-179, ASTM F68
Create access points in ultra-high-vacuum lines or chambers by bolting two same-size flanges together with a copper gasket (sold separately) between them. The flanges’ sharp edges dig into the copper gasket and form an extremely tight seal, which means they handle higher vacuum pressures than other high-vacuum fittings with rubber gaskets. Also known as CF, Conflat, and UHV fittings, use them in vacuum coating, heat treating, and drying applications, as well as for leak testing and analyzing gases. They’re stainless steel so they resist rusting.
Caps are also known as blind flanges.
Bolt kits are required to make a complete connection.
For technical drawings and 3-D models, click on a part number.
Caps
Cap
Bolt Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Flange OD | Trade Number | High Vacuum Connection Type | Bolt Circle Dia. | Dia. | No. of | Bolts Included | No. of Bolt Kits Required | Lg. | Max. Vacuum | Material | Appearance | Each | |
Fixed | ||||||||||||||
| 3/4" | 1 21/64" | 16 | CF | 1 1/16" | 11/64" | 6 | No | 1 | 5/16" | 1 × 10 -13 torr @72° F | 304 Stainless Steel | Polished | 0000000 | 000000 |
| 1 1/2" | 2 3/4" | 40 | CF | 2 5/16" | 17/64" | 6 | No | 1 | 1/2" | 1 × 10 -13 torr @72° F | 304 Stainless Steel | Polished | 0000000 | 00000 |
| 2 1/2" | 4 1/2" | 63 | CF | 3 5/8" | 21/64" | 8 | No | 1 | 11/16" | 1 × 10 -13 torr @72° F | 304 Stainless Steel | Polished | 0000000 | 00000 |
| 4" | 6" | 100 | CF | 5 1/8" | 21/64" | 16 | No | 2 | 25/32" | 1 × 10 -13 torr @72° F | 304 Stainless Steel | Polished | 0000000 | 000000 |
Bolt Kits
Bolt Kit
| For Flange OD | For Trade Number | Bolt Dia. | Thread Size | No. of Bolts Included | No. of Nuts Included | No. of Washers Included | Bolt Material | Each | |
| 1 21/64" | 16 | 0.167" | 8"-32 | 6 | 6 | 12 | 18-8 Stainless Steel | 0000000 | 00000 |
| 2 3/4" | 40 | 1/4" | 1/4"-28 | 6 | 6 | 12 | 18-8 Stainless Steel | 0000000 | 00000 |
| 4 1/2" | 63 | 5/16" | 5/16"-24 | 8 | 8 | 16 | 18-8 Stainless Steel | 0000000 | 00000 |
| 6" | 100 | 5/16" | 5/16"-24 | 8 | 8 | 16 | 18-8 Stainless Steel | 0000000 | 00000 |