CF Hardware & Seals

OFHC Copper Gaskets, Hex Head Bolts, Plate Nuts, Plastic Caps

CF flanges utilize an OFHC (Oxygen Free High Conductivity) copper gasket (also sold separately) 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.

Cleaning and Packaging

All products with weld joints are 100% helium leak tested to assure leak free operation prior to use. In addition, to ensure the cleanliness of AdvanTorr products, all parts are ultrasonically cleaned to UHV standards using de-ionized water and packaged in contamination free, class 10,000 clean room conditions. Each bag is affixed with a barcode label identifying the component's part number, heat number and batch number for full traceability.

Technical Features

OFHC Copper Gaskets & OFHC Copper Gaskets, Silver Plated
Part NumberSizeAB
CF-CS-133CF1.33"(DN16)16.2021.25
CF-CS-212CF2.12"(DN25)25.6532.77
CF-CS-275CF2.75"(DN35)36.8048.10
CF-CS-275-1CF2.75"(DN40)39.0048.10
CF-CS-338CF3.38"(DN50)51.0561.60
CF-CS-450CF4.50"(DN63)63.6082.35
CF-CS-462CF4.62"(DN80)76.4591.39
CF-CS-600CF6.00"(DN100)101.80120.45
CF-CS-675CF6.75"(DN130)127.25141.40
CF-CS-800CF8.00"(DN160)152.60171.25
CF-CS-1000CF10.00"(DN200)203.40222.05
CF-CS-1200CF12.00"(DN250)254.20272.85
CF-CS-1325CF13.25"(DN270)274.00294.34
CF-CS-1400CF14.00"(DN300)300.00313.00
CF-CS-1650CF16.50"(DN350)356.50376.60

*Optional for 10 pcs in 1 pack

Hex Head Bolts
Metric Thread
Part Number (metric thread)SizeThreadL (mm)No. of Sets
CF-HB-133MCF1.33"(DN16)M4xP0.702025
CF-HB-212MCF2.12"(DN25)M6xP1.003525
CF-HB-275MCF2.75"(DN40)M6xP1.003525
CF-HB-338MCF3.38"(DN50)M8xP1.254525
CF-HB-450MCF4.50"(DN63)M8xP1.254525
CF-HB-600MCF6.00"(DN100)M8xP1.255025
CF-HB-800MCF8.00"(DN160)M8xP1.256025
CF-HB-1000MCF10.0"(DN200)M8xP1.256025
Inch Thread
Part Number (inch thread)SizeThreadLNo. of Sets
CF-HB-133CF1.33"(DN16)8-32 UNC19.125
CF-HB-212CF2.12"(DN25)1/4"-28UNF31.825
CF-HB-275CF2.75"(DN40)1/4"-28UNF31.825
CF-HB-338CF3.38"(DN50)5/16"-24UNF44.525
CF-HB-450CF4.50"(DN63)5/16"-24UNF50.825
CF-HB-600CF6.00"(DN100)5/16"-24UNF57.225
CF-HB-800CF8.00"(DN160)5/16"-24UNF57.225
CF-HB-1000CF10.0"(DN200)5/16"-24UNF63.525

*Material: Stainless Steel
*Set: Bolts, Nuts & Washers

Nut Plates
Part Number (metric thread)SizeDiagramABCDF
CF-PN-133MCF1.33"(DN16)A20.307.6213.463.20M4xP0.7
CF-PN-275MCF2.75"(DN40)A41.1612.7029.465.10M6xP1.0
CF-PN-338MCF3.38"(DN50)B44.4512.7027.695.30M8xP1.25
CF-PN-450MCF4.50"(DN63)B51.5612.7035.305.30M8xP1.25
CF-PN-462MCF4.62"(DN80)B45.8012.7031.605.30M8xP1.25
CF-PN-600MCF6.00"(DN100)B41.6512.7025.405.30M8xP1.25
CF-PN-800MCF8.00"(DN160)B44.4512.7028.455.30M8xP1.25
Part Number (inch thread)SizeDiagramABCDF
CF-PN-133CF1.33"(DN16)A20.307.6213.463.208-32
CF-PN-275CF2.75"(DN40)A42.1612.7029.465.101/4-28
CF-PN-338CF3.38"(DN50)B44.4512.7027.695.305/16-24
CF-PN-450CF4.50"(DN63)B51.5612.7035.305.305/16-24
CF-PN-462CF4.62"(DN80)B45.8012.7031.605.305/16-24
CF-PN-600CF6.00"(DN100)B41.6512.7025.405.305/16-24
CF-PN-800CF8.00"(DN160)B44.4512.7028.455.305/16-24
CF-PN-1000CF10.00"(DN200)B44.4512.7030.235.305/16-24

*Material: Stainless Steel

CF Flange Plastic Cap
Part NumberSizeAB
CF-PC-133CF1.33"(DN16)36.2034.20
CF-PC-212CF2.12"(DN25)56.4054.00
CF-PC-275CF2.75"(DN40)72.1070.10
CF-PC-338CF3.38"(DN50)88.5085.90
CF-PC-450CF4.50"(DN63)118.30113.50
CF-PC-462CF4.62"(DN80)120.50117.60
CF-PC-600CF6.00"(DN100)156.40151.60
CF-PC-675CF6.75"(DN130)173.80171.60
CF-PC-800CF8.00"(DN160)206.00202.00
CF-PC-1000CF10.00"(DN200)258.00254.00
CF-PC-1200CF12.00"(DN250)309.00304.60
CF-PC-1325CF13.25"(DN270)341.10336.70
CF-PC-1400CF14.00"(DN300)360.10355.70