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Section 1.1<br />
Del-Seal TM <strong>CF</strong> flanges<br />
3 3 8” OD US sizes 85mm<br />
<strong>Flanges</strong> and fittings<br />
Del-Seal <strong>CF</strong> flanges<br />
UHV Series<br />
Figure 1<br />
85.6<br />
72.4<br />
15.7<br />
Non-rotatable<br />
Figure 2<br />
85.6<br />
72.4<br />
5.7<br />
15.7<br />
A<br />
Rotatable<br />
B<br />
Features<br />
n<br />
UHV rated to 1x10 -13 mbar<br />
n High-temperature rated to 450°C<br />
n<br />
n<br />
n<br />
n<br />
Rotatable and non-rotatable geometries<br />
OFE Copper or optional Viton ® elastomer gaskets<br />
Tapped or clearance bolt holes<br />
Conflat ® -compatible design<br />
Specifications<br />
Figure 3<br />
85.6<br />
72.4<br />
51.6<br />
9.5<br />
15.7<br />
Material<br />
<strong>Flanges</strong><br />
304ss<br />
Gaskets<br />
OFE Copper<br />
Bolts<br />
Stainless steel<br />
Fastening<br />
Bolt type<br />
Hexagonal or 12-point head<br />
Nut type<br />
Hexagonal or two-hole plate nuts<br />
Size<br />
5<br />
/16”-24 UNF<br />
Torque<br />
20 Nm<br />
Vacuum range<br />
to below 10 -13 mbar<br />
Temperature range -200°C to 450°C<br />
Weight<br />
0.7 kg maximum<br />
Dimensions<br />
85.6 OD x 47.6 ID maximum<br />
Figure 4<br />
85.6<br />
72.4<br />
A<br />
B<br />
51.6<br />
9.5<br />
5.7<br />
15.7<br />
Elastomer seal temperature range<br />
Sustained: -20°C to 150°C<br />
Intermittent: 200°C<br />
n<br />
n<br />
Through hole flanges have 8 bolt holes drilled 8.4 diameter<br />
Tapped flanges have 8 bolt holes threaded 5 /16”-24 UNF<br />
All dimensions are nominal in millimetres unless specified Weights given are approximate<br />
28<br />
MDC Vacuum Limited Telephone +44 (0)207 192 8300 www.mdcvacuum.co.uk
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