ISO Clamp Style Flanges

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Specifications

MODEL NUMBERDIAGRAMNOMINAL IDABCDE
ISO-63-0R-VA3.740.47
ISO-63-250-OFB21/23.740.472.4382.510.25
ISO-80-000-CA4.3310.47
ISO-80-300-CB34.3310.472.9383.010.25
ISO-100-000-CA5.1180.47
ISO-100-400-CB45.1180.473.914.010.25
ISO-160-000-CA7.0870.47
ISO-160-600-CB67.0870.475.8756.020.375
ISO-200-000-CA9.4490.47
ISO-200-800-CB89.4490.477.8758.020.375
ISO-250-000-CA11.4170.47
ISO-250-1000-CB1011.4170.479.87510.020.375
ISO-320-000-CA14.5670.67
ISO-320-1200-CB1214.5670.6711.87512.020.375
ISO-320-1275-CB1214.5670.6712.4212.770.375
ISO-400-000-CA17.7160.67
ISO-400-1600-CB1617.7160.6715.62416.020.375
ISO-500-000-CA21.6530.67
ISO-500-2000-CB2021.6530.6719.62420.020.3

Specifications - ISO Clamp Style Flanges

General: Optional fastener or nonrotatable flanges with clearance bolt holes
Nominal OD sizes: ISO-63 to ISO-500
Tube sizes: 2-1/2 to 20 inches
Materials
Flange: 304 or 316L stainless steel
O-rings: Viton, Buna
Bolts: 18-8 stainless steel
Vacuum range:
Elastomer seal: >= 1 x 10-8 Torr – High vacuum
EVAC metal seal: >= 1 x 10-11 Torr – UHV
Temperature range:
Viton: -20°C to 200°C
Buna: -30°C to 110°C
EVAC metal seal: -270°C to 150°C