B2 - Schoonover, Inc.

Vacuum Fittings
ISO-K Clamp Flange Components
ISO-K Clamp
Flange Components
♦ Clamping flange fittings conform to Pneurop 6606/1981 and DIN 28404
♦ Stainless steel fittings comply with the published specifications
Nominal Diameter
Number of Screws of Number of
A B C Clamping Screws D Claw Grip Claw Grip
DN 63 ISO-K 95 70 12 4 110 M 8 x 35 4
DN 80 ISO-K 110 83 12 4 125 M 8 x 35 8
DN 100 ISO-K 130 102 12 4 145 M 8 x 35 8
DN 160 ISO-K 180 153 12 4 200 M 10 x 35 8
DN 200 ISO-K 240 213 12 6 260 M 10 x 35 12
DN 250 ISO-K 290 261 12 6 310 M 10 x 35 12
DN 320 ISO-K 370 318 17 8 395 M 12 x 50 12
DN 400 ISO-K 450 400 17 8 480 M 12 x 50 16
DN 500 ISO-K 550 501 17 12 580 M 12 x 50 16
DN 630 ISO-K 690 651 22 12 720 M 12 x 55 20
1 Clamp flange
2 Claw grip
3 Base plate
4 Claw grip
Connection Elements
Clamp DN ... ISO-K Ordering No. A B C
Steel zinc plated 63 Ð 250 212-225 60 17 27
320 Ð 500 212-226 78 27 39
630 212-227 88 31 49
Stainless steel 63 Ð 250 212-228 60 17 27
320 Ð 500 212-229 78 27 39
630 212-230 88 31 49
Set of 4 pcs.
B9.16