Blank, Rotatable, Bored
Category:
We offer Conflat flanges in a wide range of sizes from 1.33” to 16.5” in both rotatable and non-rotatable versions. All CF flanges are compatible with other manufacturers' standards and are available in SS304L material as standard, with an option for high-grade SS 316LN ESR. CF flanges utilize an OFHC (Oxygen Free High Conductivity) -10 copper gasket for effective seal up to 1x10 Torr. Moreover, the copper gasket can sustain a temperature of up to 450°C, but reuse of copper gaskets is not recommended.
STANDARD SPECIFICATION
Vacuum Rate: Ultra High Vacuum
Material: SS304L,SS316LN
Flange Sizes: CF 1.33”~ CF 16.5”
Tube Sizes: 1/ 2”~14.0”
Vacuum Range: 760 Torr ~ 1 x 10 Torr for 304L / 760 Torr ~ 1 x 10 Torr for 316LN
Gasket Material: OFHC Copper or Silver Plated
Temperature Range: –190°C ~ 450°C
Technical Features
CF Blank Flange
| Part Number | Flange Size | A (mm) | D (mm) | PCD (mm) | Bolt Holes | Diameter (mm) / Thread type |
|---|---|---|---|---|---|---|
| CF-BL-133 | CF1.33”(DN16) | 33.70 | 7.60 | 26.97 | 6 | 4.37 |
| CF-BL-133T | CF1.33”(DN16) | 33.70 | 7.60 | 26.97 | 6 | 8-32 |
| CF-BL-133M | CF1.33”(DN16) | 33.70 | 7.60 | 26.97 | 6 | M4 |
| CF-BL-212 | CF2.12"(DN25) | 53.80 | 11.90 | 41.28 | 4 | 6.73 |
| CF-BL-212T | CF2.12”(DN25) | 53.80 | 11.90 | 41.28 | 4 | 1/4-28 |
| CF-BL-212M | CF2.12”(DN25) | 53.80 | 11.90 | 41.28 | 4 | M6 |
| CF-BL-275 | CF2.75”(DN40) | 69.30 | 12.70 | 58.72 | 6 | 6.73 |
| CF-BL-275T | CF2.75”(DN40) | 69.30 | 12.70 | 58.72 | 6 | 1/4-28 |
| CF-BL-275M | CF2.75”(DN40) | 69.30 | 12.70 | 58.72 | 6 | M6 |
| CF-BL-338 | CF3.38”(DN50) | 85.30 | 16.00 | 72.39 | 8 | 8.43 |
| CF-BL-338T | CF3.38”(DN50) | 85.30 | 16.00 | 72.39 | 8 | 5/16-24 |
| CF-BL-338M | CF3.38”(DN50) | 85.30 | 16.00 | 72.39 | 8 | M8 |
| CF-BL-450 | CF4.50”(DN63) | 113.50 | 17.30 | 92.15 | 8 | 8.43 |
| CF-BL-450T | CF4.50”(DN63) | 113.50 | 17.30 | 92.15 | 8 | 5/16-24 |
| CF-BL-450M | CF4.50”(DN63) | 113.50 | 17.30 | 92.15 | 8 | M8 |
| CF-BL-462 | CF4.62”(DN80) | 117.00 | 19.10 | 102.36 | 10 | 8.43 |
| CF-BL-462T | CF4.62”(DN80) | 117.00 | 19.10 | 102.36 | 10 | 5/16-24 |
| CF-BL-462M | CF4.62”(DN80) | 117.00 | 19.10 | 102.36 | 10 | M8 |
| CF-BL-600 | CF6.00”(DN100) | 151.60 | 19.80 | 130.25 | 16 | 8.43 |
| CF-BL-600T | CF6.00”(DN100) | 151.60 | 19.80 | 130.25 | 16 | 5/16-24 |
| CF-BL-600M | CF6.00”(DN100) | 151.60 | 19.80 | 130.25 | 16 | M8 |
| CF-BL-675 | CF6.75”(DN130) | 170.69 | 21.30 | 151.61 | 18 | 8.43 |
| CF-BL-675T | CF6.75”(DN130) | 170.69 | 21.30 | 151.61 | 18 | 5/16-24 |
| CF-BL-675M | CF6.75”(DN130) | 170.69 | 21.30 | 151.61 | 18 | M8 |
| CF-BL-800 | CF8.00”(DN160) | 202.44 | 22.35 | 181.05 | 20 | 8.43 |
| CF-BL-800T | CF8.00”(DN160) | 202.44 | 22.35 | 181.05 | 20 | 5/16-24 |
| CF-BL-800M | CF8.00”(DN160) | 202.44 | 22.35 | 181.05 | 20 | M8 |
| CF-BL-1000 | CF10.00”(DN200) | 253.24 | 24.60 | 231.85 | 24 | 8.43 |
| CF-BL-1000T | CF10.00”(DN200) | 253.24 | 24.60 | 231.85 | 24 | 5/16-24 |
| CF-BL-1000M | CF10.00”(DN200) | 253.24 | 24.60 | 231.85 | 24 | M8 |
| CF-BL-1200 | CF12.00”(DN250) | 304.40 | 25.90 | 283.97 | 32 | 8.43 |
| CF-BL-1200T | CF12.00”(DN250) | 304.40 | 25.90 | 283.97 | 32 | 5/16-24 |
| CF-BL-1200M | CF12.00”(DN250) | 304.40 | 25.90 | 283.97 | 32 | M8 |
| CF-BL-1325 | CF13.25”(DN270) | 335.79 | 28.45 | 306.32 | 30 | 10.49 |
| CF-BL-1325T | CF13.25”(DN270) | 335.79 | 28.45 | 306.32 | 30 | 3/8-24 |
| CF-BL-1325M | CF13.25”(DN270) | 335.79 | 28.45 | 306.32 | 30 | M10 |
| CF-BL-1400 | CF14.00”(DN300) | 354.84 | 28.45 | 325.37 | 30 | 10.49 |
| CF-BL-1400T | CF14.00”(DN300) | 354.84 | 28.45 | 325.37 | 30 | 3/8-24 |
| CF-BL-1400M | CF14.00”(DN300) | 354.84 | 28.45 | 325.37 | 30 | M10 |
| CF-BL-1650 | CF16.50”(DN350) | 418.34 | 28.45 | 388.87 | 36 | 10.49 |
| CF-BL-1650T | CF16.50”(DN350) | 418.34 | 28.45 | 388.87 | 36 | 3/8-24 |
| CF-BL-1650M | CF16.50”(DN350) | 418.34 | 28.45 | 388.87 | 36 | M10 |
*Material: SS 304L
*Tapped and Through Holes
*Note: SS 316LN Material Available on Request.
CF Blank Flange, Rotatable
| Part Number | Flange Size | A (mm) | B (mm) | D (mm) | PCD (mm) | Bolt Holes | Diam. (mm) / Thread Type |
|---|---|---|---|---|---|---|---|
| CF-BL-133R | CF1.33" (DN16) | 33.70 | 19.41 | 7.60 | 26.97 | 6 | 4.37 |
| CF-BL-133RT | CF1.33" (DN16) | 33.70 | 19.41 | 7.60 | 26.97 | 6 | 8-32 |
| CF-BL-133RM | CF1.33" (DN16) | 33.70 | 19.41 | 7.60 | 26.97 | 6 | M4 |
| CF-BL-212R | CF2.12" (DN25) | 53.80 | 27.94 | 11.90 | 41.28 | 4 | 6.73 |
| CF-BL-212RT | CF2.12" (DN25) | 53.80 | 27.94 | 11.90 | 41.28 | 4 | 1/4-28 |
| CF-BL-212RM | CF2.12" (DN25) | 53.80 | 27.94 | 11.90 | 41.28 | 4 | M6 |
| CF-BL-275R | CF2.75" (DN40) | 69.30 | 48.31 | 12.70 | 58.72 | 6 | 6.73 |
| CF-BL-275RT | CF2.75" (DN40) | 69.30 | 48.31 | 12.70 | 58.72 | 6 | 1/4-28 |
| CF-BL-275RM | CF2.75" (DN40) | 69.30 | 48.31 | 12.70 | 58.72 | 6 | M6 |
| CF-BL-338R | CF3.38" (DN50) | 85.30 | 54.50 | 17.40 | 72.39 | 8 | 8.43 |
| CF-BL-338RT | CF3.38" (DN50) | 85.30 | 54.50 | 17.40 | 72.39 | 8 | 5/16-24 |
| CF-BL-338RM | CF3.38" (DN50) | 85.30 | 54.50 | 17.40 | 72.39 | 8 | M8 |
| CF-BL-450R | CF4.50" (DN63) | 113.50 | 72.39 | 19.10 | 92.15 | 8 | 8.43 |
| CF-BL-450RT | CF4.50" (DN63) | 113.50 | 72.39 | 19.10 | 92.15 | 8 | 5/16-24 |
| CF-BL-450RM | CF4.50" (DN63) | 113.50 | 72.39 | 19.10 | 92.15 | 8 | M8 |
| CF-BL-462R | CF4.62" (DN80) | 117.00 | 79.71 | 20.60 | 102.36 | 10 | 8.43 |
| CF-BL-462RT | CF4.62" (DN80) | 117.00 | 79.71 | 20.60 | 102.36 | 10 | 5/16-24 |
| CF-BL-462RM | CF4.62" (DN80) | 117.00 | 79.71 | 20.60 | 102.36 | 10 | M8 |
| CF-BL-600R | CF6.00" (DN100) | 151.60 | 106.17 | 21.30 | 130.25 | 16 | 8.43 |
| CF-BL-600RT | CF6.00" (DN100) | 151.60 | 106.17 | 21.30 | 130.25 | 16 | 5/16-24 |
| CF-BL-600RM | CF6.00" (DN100) | 151.60 | 106.17 | 21.30 | 130.25 | 16 | M8 |
| CF-BL-675R | CF6.75" (DN130) | 170.69 | 129.50 | 21.30 | 151.61 | 18 | 8.43 |
| CF-BL-675RT | CF6.75" (DN130) | 170.69 | 129.50 | 21.30 | 151.61 | 18 | 5/16-24 |
| CF-BL-675RM | CF6.75" (DN130) | 170.69 | 129.50 | 21.30 | 151.61 | 18 | M8 |
| CF-BL-800R | CF8.00" (DN160) | 202.44 | 155.70 | 23.90 | 181.05 | 20 | 8.43 |
| CF-BL-800RT | CF8.00" (DN160) | 202.44 | 155.70 | 23.90 | 181.05 | 20 | 5/16-24 |
| CF-BL-800RM | CF8.00" (DN160) | 202.44 | 155.70 | 23.90 | 181.05 | 20 | M8 |
| CF-BL-1000R | CF10.00" (DN200) | 253.24 | 208.28 | 24.60 | 231.85 | 24 | 8.43 |
| CF-BL-1000RT | CF10.00" (DN200) | 253.24 | 208.28 | 24.60 | 231.85 | 24 | 5/16-24 |
| CF-BL-1000RM | CF10.00" (DN200) | 253.24 | 208.28 | 24.60 | 231.85 | 24 | M8 |
| CF-BL-1200R | CF12.00" (DN250) | 304.04 | 256.03 | 25.90 | 283.97 | 32 | 8.43 |
| CF-BL-1200RT | CF12.00" (DN250) | 304.04 | 256.03 | 25.90 | 283.97 | 32 | 5/16-24 |
| CF-BL-1200RM | CF12.00" (DN250) | 304.04 | 256.03 | 25.90 | 283.97 | 32 | M8 |
| CF-BL-1325R | CF13.25" (DN270) | 335.79 | 276.30 | 28.45 | 306.32 | 30 | 10.49 |
| CF-BL-1325RT | CF13.25" (DN270) | 335.79 | 276.30 | 28.45 | 306.32 | 30 | 3/8-24 |
| CF-BL-1325RM | CF13.25" (DN270) | 335.79 | 276.30 | 28.45 | 306.32 | 30 | M10 |
| CF-BL-1400R | CF14.00" (DN300) | 354.84 | 305.82 | 28.45 | 325.37 | 30 | 10.49 |
| CF-BL-1400RT | CF14.00" (DN300) | 354.84 | 305.82 | 28.45 | 325.37 | 30 | 3/8-24 |
| CF-BL-1400RM | CF14.00" (DN300) | 354.84 | 305.82 | 28.45 | 325.37 | 30 | M10 |
| CF-BL-1650R | CF16.50" (DN350) | 418.34 | 359.61 | 28.45 | 388.87 | 36 | 10.49 |
| CF-BL-1650RT | CF16.50" (DN350) | 418.34 | 359.61 | 28.45 | 388.87 | 36 | 3/8-24 |
| CF-BL-1650RM | CF16.50" (DN350) | 418.34 | 359.61 | 28.45 | 388.87 | 36 | M10 |
*Material: SS 304L
*Tapped and Through Holes
*Note: SS 316LN Material Available on Request.
CF Bored Flanges
| Part Number | Size | A (mm) | B (mm) | C (mm) | D (mm) | F (mm) | PCD (mm) | Bolt Holes | Diameter (mm) - Thread Type |
|---|---|---|---|---|---|---|---|---|---|
| CF-BF-133x038 | CF1.33" (DN16) | 33.70 | 9.65 | - | 7.60 | - | 26.97 | 6 | 4.37 |
| CF-BF-133x038T | CF1.33" (DN16) | 33.70 | 9.65 | - | 7.60 | - | 26.97 | 6 | 8-32 |
| CF-BF-133x038M | CF1.33" (DN16) | 33.70 | 9.65 | - | 7.60 | - | 26.97 | 6 | M4 |
| CF-BF-133x050 | CF1.33" (DN16) | 33.70 | 12.83 | - | 7.60 | - | 26.97 | 6 | 4.37 |
| CF-BF-133x050T | CF1.33" (DN16) | 33.70 | 12.83 | - | 7.60 | - | 26.97 | 6 | 8-32 |
| CF-BF-133x050M | CF1.33" (DN16) | 33.70 | 12.83 | - | 7.60 | - | 26.97 | 6 | M4 |
| CF-BF-133x075 | CF1.33" (DN16) | 33.70 | 19.30 | 16.00 | 7.60 | 4.45 | 26.97 | 6 | 4.37 |
| CF-BF-133x075T | CF1.33" (DN16) | 33.70 | 19.30 | 16.00 | 7.60 | 4.45 | 26.97 | 6 | 8-32 |
| CF-BF-133x075M | CF1.33" (DN16) | 33.70 | 19.30 | 16.00 | 7.60 | 4.45 | 26.97 | 6 | M4 |
| CF-BF-212x100 | CF2.12" (DN25) | 53.80 | 25.65 | 23.90 | 11.90 | 4.32 | 41.28 | 4 | 6.73 |
| CF-BF-212x100T | CF2.12" (DN25) | 53.80 | 25.65 | 23.90 | 11.90 | 4.32 | 41.28 | 4 | 1/4-28 |
| CF-BF-212x100M | CF2.12" (DN25) | 53.80 | 25.65 | 23.90 | 11.90 | 4.32 | 41.28 | 4 | M6 |
| CF-BF-275x075 | CF2.75" (DN40) | 69.30 | 19.30 | 16.00 | 12.70 | 5.31 | 58.72 | 6 | 6.73 |
| CF-BF-275x075T | CF2.75" (DN40) | 69.30 | 19.30 | 16.00 | 12.70 | 5.31 | 58.72 | 6 | 1/4-28 |
| CF-BF-275x075M | CF2.75" (DN40) | 69.30 | 19.30 | 16.00 | 12.70 | 5.31 | 58.72 | 6 | M6 |
| CF-BF-275x100 | CF2.75" (DN40) | 69.30 | 25.65 | 22.10 | 12.70 | 5.31 | 58.72 | 6 | 6.73 |
| CF-BF-275x100T | CF2.75" (DN40) | 69.30 | 25.65 | 22.10 | 12.70 | 5.31 | 58.72 | 6 | 1/4-28 |
| CF-BF-275x100M | CF2.75" (DN40) | 69.30 | 25.65 | 22.10 | 12.70 | 5.31 | 58.72 | 6 | M6 |
| CF-BF-275x150 | CF2.75" (DN40) | 69.30 | 38.35 | 36.60 | 12.70 | 5.31 | 58.72 | 6 | 6.73 |
| CF-BF-275x150T | CF2.75" (DN40) | 69.30 | 38.35 | 36.60 | 12.70 | 5.31 | 58.72 | 6 | 1/4-28 |
| CF-BF-275x150M | CF2.75" (DN40) | 69.30 | 38.35 | 36.60 | 12.70 | 5.31 | 58.72 | 6 | M6 |
| CF-BF-275x175 | CF2.75" (DN40) | 69.30 | 44.70 | 41.20 | 12.70 | 5.31 | 58.72 | 6 | 6.73 |
| CF-BF-275x175T | CF2.75" (DN40) | 69.30 | 44.70 | 41.20 | 12.70 | 5.31 | 58.72 | 6 | 1/4-28 |
| CF-BF-275x175M | CF2.75" (DN40) | 69.30 | 44.70 | 41.20 | 12.70 | 5.31 | 58.72 | 6 | M6 |
| CF-BF-338x200 | CF3.38" (DN50) | 85.30 | 51.05 | 49.30 | 17.40 | 5.72 | 72.39 | 8 | 8.43 |
| CF-BF-338x200T | CF3.38" (DN50) | 85.30 | 51.05 | 49.30 | 17.40 | 5.72 | 72.39 | 8 | 5/16-24 |
| CF-BF-338x200M | CF3.38" (DN50) | 85.30 | 51.05 | 49.30 | 17.40 | 5.72 | 72.39 | 8 | M8 |
| CF-BF-450x250 | CF4.50" (DN63) | 113.50 | 63.75 | 62.00 | 17.40 | 9.53 | 92.15 | 8 | 8.43 |
| CF-BF-450x250T | CF4.50" (DN63) | 113.50 | 63.75 | 62.00 | 17.40 | 9.53 | 92.15 | 8 | 5/16-24 |
| CF-BF-450x250M | CF4.50" (DN63) | 113.50 | 63.75 | 62.00 | 17.40 | 9.53 | 92.15 | 8 | M8 |
| CF-BF-462x300 | CF4.62" (DN80) | 117.00 | 76.45 | 74.70 | 20.60 | 9.60 | 102.36 | 10 | 8.43 |
| CF-BF-462x300T | CF4.62" (DN80) | 117.00 | 76.45 | 74.70 | 20.60 | 9.60 | 102.36 | 10 | 5/16-24 |
| CF-BF-462x300M | CF4.62" (DN80) | 117.00 | 76.45 | 74.70 | 20.60 | 9.60 | 102.36 | 10 | M8 |
| CF-BF-600x400 | CF6.00" (DN100) | 151.60 | 101.85 | 99.60 | 19.80 | 11.10 | 130.25 | 16 | 8.43 |
| CF-BF-600x400T | CF6.00" (DN100) | 151.60 | 101.85 | 99.60 | 19.80 | 11.10 | 130.25 | 16 | 5/16-24 |
| CF-BF-600x400M | CF6.00" (DN100) | 151.60 | 101.85 | 99.60 | 19.80 | 11.10 | 130.25 | 16 | M8 |
| CF-BF-675x500 | CF6.75" (DN130) | 170.69 | 127.25 | 123.83 | 21.34 | 11.68 | 151.61 | 18 | 8.43 |
| CF-BF-675x500T | CF6.75" (DN130) | 170.69 | 127.25 | 123.83 | 21.34 | 11.68 | 151.61 | 18 | 5/16-24 |
| CF-BF-675x500M | CF6.75" (DN130) | 170.69 | 127.25 | 123.83 | 21.34 | 11.68 | 151.61 | 18 | M8 |
| CF-BF-800x600 | CF8.00" (DN160) | 202.44 | 152.91 | 150.40 | 22.35 | 12.70 | 181.05 | 20 | 8.43 |
| CF-BF-800x600T | CF8.00" (DN160) | 202.44 | 152.91 | 150.40 | 22.35 | 12.70 | 181.05 | 20 | 5/16-24 |
| CF-BF-800x600M | CF8.00" (DN160) | 202.44 | 152.91 | 150.40 | 22.35 | 12.70 | 181.05 | 20 | M8 |
| CF-BF-1000x800 | CF10.00" (DN200) | 253.24 | 203.71 | 200.40 | 24.64 | 12.70 | 231.85 | 24 | 8.43 |
| CF-BF-1000x800T | CF10.00" (DN200) | 253.24 | 203.71 | 200.40 | 24.64 | 12.70 | 231.85 | 24 | 5/16-24 |
| CF-BF-1000x800M | CF10.00" (DN200) | 253.24 | 203.71 | 200.40 | 24.64 | 12.70 | 231.85 | 24 | M8 |
| CF-BF-1200x1000 | CF12.00" (DN250) | 304.04 | 254.51 | 250.95 | 25.90 | 12.70 | 283.97 | 32 | 8.43 |
| CF-BF-1200x1000T | CF12.00" (DN250) | 304.04 | 254.51 | 250.95 | 25.90 | 12.70 | 283.97 | 32 | 5/16-24 |
| CF-BF-1200x1000M | CF12.00" (DN250) | 304.04 | 254.51 | 250.95 | 25.90 | 12.70 | 283.97 | 32 | M8 |
| CF-BF-1325x1000 | CF13.25" (DN270) | 335.79 | 254.51 | 250.95 | 28.45 | 12.70 | 306.32 | 30 | 10.49 |
| CF-BF-1325x1000T | CF13.25" (DN270) | 335.79 | 254.51 | 250.95 | 28.45 | 12.70 | 306.32 | 30 | 3/8-24 |
| CF-BF-1325x1000M | CF13.25" (DN270) | 335.79 | 254.51 | 250.95 | 28.45 | 12.70 | 306.32 | 30 | M10 |
| CF-BF-1400x1200 | CF14.00" (DN300) | 354.84 | 305.31 | 301.75 | 28.45 | 12.70 | 325.37 | 30 | 10.49 |
| CF-BF-1400x1200T | CF14.00" (DN300) | 354.84 | 305.31 | 301.75 | 28.45 | 12.70 | 325.37 | 30 | 3/8-24 |
| CF-BF-1400x1200M | CF14.00" (DN300) | 354.84 | 305.31 | 301.75 | 28.45 | 12.70 | 325.37 | 30 | M10 |
| CF-BF-1650x1400 | CF16.50" (DN350) | 418.34 | 356.11 | 352.00 | 28.45 | 12.70 | 388.87 | 36 | 10.49 |
| CF-BF-1650x1400T | CF16.50" (DN350) | 418.34 | 356.11 | 352.00 | 28.45 | 12.70 | 388.87 | 36 | 3/8-24 |
| CF-BF-1650x1400M | CF16.50" (DN350) | 418.34 | 356.11 | 352.00 | 28.45 | 12.70 | 388.87 | 36 | M10 |
| CF-BF-1650x1400M | CF16.50" (DN350) | 418.34 | 356.11 | 352.00 | 28.45 | 12.70 | 388.87 | 36 | M10 |
*Material: SS 304L
*Tapped and Through Holes
*Note: SS 316LN Material Available on Request.