CF Flanges

CF bored and blank flanges available in rotatable and non-rotatable configurations.

Nor-Cal Products, Inc.

CF Bored Flanges, Nonrotatable, Stainless 304

Nonrotatable bored CF flanges are a single-piece part, made from 304 stainless steel. The conflat knife edge is machined directly into the flange.

The flange seals with a flat gasket of oxygen-free (OFHC) copper allowing for high bakeout temperature necessary for UHV technology. This gasket can be used generally only once due to the plastic deformation by the knife-edge. Flange connections have a leak rate of <1.0E-13 mbar l/s and are bakeable up to 450 °C.

Flange SizeRotatable or NonrotatableBored or BlankFlange MaterialMounting Bolt HolesMfg. P/N.Encole P/N.Price
1-1/3" (DN16)NonrotatableBoredAISI 304Clearance Bolt Holes133-025N226A1000$15.00each
1-1/3" (DN16)NonrotatableBoredAISI 304Clearance Bolt Holes133-038N226A1001$15.00each
1-1/3" (DN16)NonrotatableBoredAISI 304Clearance Bolt Holes133-050N226A1002$15.00each
1-1/3" (DN16)NonrotatableBoredAISI 304Threaded Bolt Holes133-025NT226A1003$15.00each
1-1/3" (DN16)NonrotatableBoredAISI 304Threaded Bolt Holes133-038NT226A1004$15.00each
1-1/3" (DN16)NonrotatableBoredAISI 304Threaded Bolt Holes133-050NT226A1005$15.00each
2-1/8" (DN25)NonrotatableBoredAISI 304Clearance Bolt Holes212-025N226A1006$18.00each
2-1/8" (DN25)NonrotatableBoredAISI 304Clearance Bolt Holes212-050N226A1007$18.00each
2-1/8" (DN25)NonrotatableBoredAISI 304Clearance Bolt Holes212-075N226A1008$18.00each
2-1/8" (DN25)NonrotatableBoredAISI 304Clearance Bolt Holes212-100N226A1009$18.00each
2-1/8" (DN25)NonrotatableBoredAISI 304Threaded Bolt Holes212-25NT226A1010$24.00each
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Nor-Cal Products, Inc.

CF Bored Flanges, Rotatable, Stainless 304

Rotatable bored CF flanges are supplied as an assembly of two components - the flange and the insert. The flanges have threaded of clearance thru holes for mounting bolts.

The bolted portion freely rotates around the insert with the knife edge. The flange seals with a flat gasket of oxygen-free (OFHC) copper allowing for high bakeout temperature necessary for UHV technology. This gasket can be used generally only once due to the plastic deformation by the knife-edge. Flange connections have a leak rate of <1.0E-13 mbar l/s and are bakeable up to 450 °C.

Flange SizeRotatable or NonrotatableBored or BlankFlange MaterialMounting Bolt HolesMfg. P/N.Encole P/N.Price
1-1/3" (DN16)RotatableBoredAISI 304Clearance Bolt Holes133-025R225A1000$16.20each
1-1/3" (DN16)RotatableBoredAISI 304Clearance Bolt Holes133-038R225A1001$16.20each
1-1/3" (DN16)RotatableBoredAISI 304Clearance Bolt Holes133-050R225A1002$16.20each
1-1/3" (DN16)RotatableBoredAISI 304Clearance Bolt Holes133-075R225A1003$15.00each
1-1/3" (DN16)RotatableBoredAISI 304Threaded Bolt Holes133-025RT225A1004$21.60each
1-1/3" (DN16)RotatableBoredAISI 304Threaded Bolt Holes133-038RT225A1005$21.60each
1-1/3" (DN16)RotatableBoredAISI 304Threaded Bolt Holes133-050RT225A1006$21.60each
1-1/3" (DN16)RotatableBoredAISI 304Threaded Bolt Holes133-75RT225A1007$21.60each
2-1/8" (DN25)RotatableBoredAISI 304Clearance Bolt Holes212-025R225A1008$24.60each
2-1/8" (DN25)RotatableBoredAISI 304Clearance Bolt Holes212-050R225A1009$24.60each
2-1/8" (DN25)RotatableBoredAISI 304Clearance Bolt Holes212-075R225A1010$20.50each
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Nor-Cal Products, Inc.

CF Blank Flanges, Non-Rotatable, Stainless 304

Nonrotatable blank CF flanges are a single-piece part. The conflat knife edge is machined directly into the blank flange.

The flanges seal with a flat gasket of oxygen-free (OFHC) copper allowing for high bakeout temperature necessary for UHV technology. This gasket can be used generally only once due to the plastic deformation by the knife-edge. Flange connections have a leak rate of <1.0E-13 mbar l/s and are bakeable up to 450 °C.

Flange SizeRotatable or NonrotatableBored or BlankFlange MaterialMounting Bolt HolesMfg. P/N.Encole P/N.Price
1-1/3" (DN16)NonrotatableBlankAISI 304Clearance Bolt Holes133-000N228A1000$15.00each
1-1/3" (DN16)NonrotatableBlankAISI 304Threaded Bolt Holes133-000NT228A1001$19.80each
2-1/8" (DN25)NonrotatableBlankAISI 304Threaded Bolt Holes212-000N228A1002$18.00each
2-1/8" (DN25)NonrotatableBlankAISI 304Threaded Bolt Holes212-000NT228A1003$24.00each
3-3/8" (DN50)NonrotatableBlankAISI 304Clearance Bolt Holes338-000N228A1004$44.40each
3-3/8" (DN50)NonrotatableBlankAISI 304Threaded Bolt Holes338-000NT228A1005$44.40each
4-1/2" (DN63)NonrotatableBlankAISI 304Clearance Bolt Holes450-000N228A1006$63.60each
4-1/2" (DN63)NonrotatableBlankAISI 304Threaded Bolt Holes450-000NT228A1007$75.60each
4-5/8" (DN80)NonrotatableBlankAISI 304Clearance Bolt Holes462-000N228A1008$73.20each
4-5/8" (DN80)NonrotatableBlankAISI 304Threaded Bolt Holes462-000NT228A1009$80.25each
6" (DN100)NonrotatableBlankAISI 304Clearance Bolt Holes600-000N228A1010$92.40each
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Nor-Cal Products, Inc.

CF Blank Flanges, Rotatable, Stainless 304

Rotatable blank CF flanges are supplied as an assembly of two components - the flange and the blank insert. Flanges have threaded of clearance thru holes for mounting bolts.

Flange SizeRotatable or NonrotatableBored or BlankFlange MaterialMounting Bolt HolesMfg. P/N.Encole P/N.Price
1-1/3" (DN16)RotatableBlankAISI 304Clearance Bolt Holes133-000R227A1000$16.30each
1-1/3" (DN16)RotatableBlankAISI 304Threaded Bolt Holes133-000RT227A1001$21.75each
2-1/8" (DN25)RotatableBlankAISI 304Clearance Bolt Holes212-000R227A1002$24.75each
2-1/8" (DN25)RotatableBlankAISI 304Threaded Bolt Holes212-000RT227A1003$24.00each
3-3/8" (DN50)RotatableBlankAISI 304Clearance Bolt Holes338-000R227A1004$49.30each
3-3/8" (DN50)RotatableBlankAISI 304Threaded Bolt Holes338-000RT227A1005$60.00each
4-1/2" (DN63)RotatableBlankAISI 304Clearance Bolt Holes450-000R227A1006$81.60each
4-1/2" (DN63)RotatableBlankAISI 304Threaded Bolt Holes450-000RT227A1007$86.40each
4-5/8" (DN80)RotatableBlankAISI 304Clearance Bolt Holes462-000R227A1008$81.60each
4-5/8" (DN80)RotatableBlankAISI 304Threaded Bolt Holes462-000RT227A1009$94.80each
6" (DN100)RotatableBlankAISI 304Clearance Bolt Holes600-000R227A1010$108.00each
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