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
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Flange Sizes:
CF16 – CF400 |
Temperature Range:
–190°C ~ +450°C |
Tube Sizes:
12,7 - 406 mm Custom sizes on request.
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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 |
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Tube Size Tollerance + 0.1 / + 1
Caption:
| B |
Blank |
| BD |
Blank Double - Sided |
| BDT |
Blank Double - Sided Tapped |
| BRT |
Blank Rotatable Tapped |
| F |
Fixed |
| HT |
Half Tapped |
| M |
Mitred |
| R |
Rotatable |
| RT |
Rotatable Tapped |
| T |
Tapped |
