ISO Flanges

ISO flanges are designed to fit tubes with OD above 2 inches. Hositrad ISO flanges are manufactured according to ISO specifications ISO1609 
with full compatibility to other manufacturers' standards. There are two types of flange assemblies, claw clamp (ISO-K) and bolt flange (ISO-F).
Both use an O-ring hold in place by a centering ring to achieve vacuum seal up to 1x10-9 mbar.
The bolt type flanges are assembled by using a set of bolts to fix the position of the flanges.
The claw clamp flanges use double claw clamps to hold two flanges together.
The use of the claw clamps means that mating flanges can be connected together in any orientation.


Standard Specification
Application:
High Vacuum		 Vacuum Range:
1x10-9 mbar 
Materials:
304 (1.4301), 316L (1.4404)		 Gasket Materials:
Viton, Perbunan, Kalrez, Aluminium
Flange Sizes:
 ISO63~ISO630
 		 Temperature Range:
Surface Finish: Bead-blasted. Electro-polished  
on customers request
Other finishes are also available.
1x10-8 mbar < -200°C(150°C sustained)
 
Tube Sizes:
 12,7 mm - 640 mm








Cleaning and Packaging
Products with weld joints are 100 percent helium leak tested to assure leak free. To ensure the cleanliness of Hositrad products ready for onsite use,
all part are ultrasonically cleaned with de- ionized water. Each bag is affixed with a abel identifying the component's part number.

Flange Information ISO-K
Flange size     T     D1     D2       F       R   

Nr. of Claws (ISO-K)
ISO 63 12 95 70 5 1,5 3 - 4
ISO 80 12 110 83 5 1,5 4 - 8
ISO 100 12 130 102 5 1,5 4 - 8
ISO 160 12 180 153 5 2,5 4 - 8
ISO 200 12 240 213 5 2,5 6 - 12
ISO 250 12 290 261 5 2,5 6 - 12
ISO 320 17 370 318 7,5 2,5 8 - 12
ISO 400 17 450 400 7,5 4 8 - 12
ISO 500 17 550 501 7,5 4 12 - 16
ISO 630 22 690 651 10 5 16 - 20
             



 



Flange Information ISO-F
Flange size   T     D1     D2    PCD Nr. of Bolts
ISO 63 12 130 70  1104x     9/M8
ISO 80 12 145 83  1258x     9/M8
ISO 100 12 165 102  1458x     9/M8
ISO 160 16 225 153  2008x  11/M10
ISO 200 16 285 213  26012x 11/M10
ISO 250 16 335 261  31012x 11/M10
ISO 320 20 425 318  39512x 14/M12
ISO 400 20 510 400  48016x 14/M12
ISO 500 20 610 501  58016x 14/M12
ISO 630 24 750 651  72020x 14/M12