Hositrad Holland B.V.
Phone: (+31) 33 25 37 210
E-mail Hositrad Holland

Hositrad Deutschland
Phone: (+49) 941 55 82 7
E-mail Hositrad Deutschland

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CF Flanges & Components

Hositrad offers Conflat flanges from CF16 to CF400 in both rotatable and non-rotatable versions. Special (bigger) sizes on request.
CF flanges are compatible with other manufacturers’ standards. (ISO/TS 3669-2:2007)
Available materials for CF flanges are in SST 304, 304L, 304/ESR, 316L, 316LN/ESR.
CF flanges utilize an OFHC (Oxygen Free High Conductivity) copper gasket for effective seal up to 1x-11 mbar. The copper gasket can sustain up to 450°C.
However, reuse of OFHC copper gaskets is not recommended.
For transition from UHV to HV, Hositrad offers complete range of Adaptors for CF flanges to  ISO-KF, ISO-K or ISO-F Flanges.

Standard Specification
Application:
Ultra High Vacuum
Vacuum Range:
1x10- 11 mbar
Materials:
304 (1.4301), 304L (1.4306), 
316L (1.4404), 316LN/ESR (1.4429)
Gasket Materials:
OFHC Copper or Silver Plated
Viton also available
Flange Sizes:
CF16 – CF400
Temperature Range:
–190°C ~ +450°C
Tube Sizes:
12,7 - 406 mm  Custom sizes on request.
 












Cleaning and Packaging

Products with weld joins are 100 percent helium leak tested to assure leak free.
To ensure the cleanliness of Hositrad products ready for onsite use, all part are ultrasonic cleaned with de- ionized water, and packaged.
Each bag is affixed with a label identifying the component’s part number.
                                                                                                                                                       

Flange size  T  D1   C    B Holes   F   G
NW16CF  ISO-3669 7,6 34,0 27,0 4,4 / M4 6 21,4 18,3
NW25CF  ISO-3669
11,9
54,0  33,0  6,7 / M6  4  33,0  27,7 
NW35CF  ISO-3669 12,7 70,0 58,7 6,7 / M6 6 48,3 41,9
NW50CF  ISO-3669 15.8 85,6 72,4 8,4 / M8 8 61,8 55,6
NW63CF  ISO-3669 17,5 113,5 92,1 8,4 / M8 8 82,5 77,2
NW75CF  ISO-3669
17.5  76,2  102,3  8,4 / M8  10  91,6  85,2 
NW100CF  ISO-3669 19,9 151,6 130,3 8,4 / M8 16 120,7 115,3
NW125CF  ISO-3669
21,0 127,0 151,6 8,4 / M8 18 141,8 136,3
NW150CF  ISO-3669 22,3 202,4 181,0 8,4 / M8 20 171,5 166,1
NW200CF  ISO-3669 24,6 253,2 231,8 8,4 / M8 24 222,3 216,9
NW250CF  ISO-3669 26,0 306,0 284,0 8,4 / M8 32 273,2 267,0
NW275CF  ISO-3669 28,0 336.6 306.3 10,8 / M10
30 294.4 288,2
NW300CF   --
28,4 355,6 325,4 10,5 / M10 30 313,5 307,3
NW300CF  ISO-3669
28,4 368,3 338,1 10,8 / M10 32 326,4 320,0
NW350CF  ISO-3669 28,4  419,1  388,9  10,8 / M10  36  376,7  373,0 
NW400CF  ISO-3669
28,5 469,9 437,9  10,8 / M10 40 424,4 419,0
NW500CF   --
29,5 558,8 536,0  10,5 / M10 48 515,2 509,6






 



Tube Size Tollerance + 0.1 / + 1

Caption:

B Blank
BD Blank Double - Sided
BDT Blank Double - Sided Tapped
BRT Blank Rotatable Tapped
Fixed 
HT  Half Tapped 
Mitred 
Rotatable 
RT  Rotatable Tapped 
Tapped