ISO F Flanges (bolted) ISO-F Weld Flanges (304L SS)
The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners. A variety of bolt/clamp options permit joints between mixed ISO-K and -F flanges.
The design principles of ISO and KF seals are identical. Each flange face is counter-bored or grooved to receive a metal centering ring with an elastomeric o-ring around its O.D. As with KF, the ISO centering ring both aligns the flanges and holds the o-ring in place.
ISO flanges are limited (by the o-ring's properties) to applications with temperatures between ~0° C and 120–180° C, and pressure from atmosphere to ~10-8 torr or mbar.
NOTE: These flanges are identical to the ISO NW flange standard. While these flanges are compatible with those made by European manufacturers, the tube diameter listed is in inches.
Flange
Size | Bore | Dim
A | Dim
B | Nominal
Tube O.D. | Weight
lbs (kg) | PartNo | Price | | |
| ISO63 |
2.435" |
2.51" |
0.25" |
2.5" |
3 (1.36) |
QF63-SWF |
$75.00 |
|
|
| ISO100 |
3.917" |
4.01" |
0.25" |
4" |
3 (1.36) |
QF100-SWF |
$109.00 |
|
|
| ISO200 |
7.880" |
8.02" |
0.25" |
8" |
8 (3.62) |
QF200-SWF |
$205.00 |
|
|
| ISO320 |
12.630" |
12.77" |
0.375" |
12.75" |
25 (11.33) |
QF320-SWF |
$675.00 |
|
|
| ISO500 |
19.880" |
20.02" |
0.375" |
20" |
55 (24.94) |
QF500-SWF |
$1,930.00 |
|
|
| ISO80 |
2.935" |
3.01" |
0.25" |
3" |
3 (1.36) |
QF80-SWF |
$98.00 |
|
|
| ISO160 |
5.917" |
6.02" |
0.25" |
6" |
5 (2.26) |
QF160-SWF |
$170.00 |
|
|
| ISO250 |
9.880" |
10.02" |
0.25" |
10" |
10 (4.53) |
QF250-SWF |
$340.00 |
|
|
| ISO400 |
15.880" |
16.02" |
0.375" |
16" |
25 (11.33) |
QF400-SWF |
$900.00 |
|
|
| ISO630 |
23.810" |
24.02" |
0.500" |
24" |
75 (34.01) |
QF630-SWF |
$1,930.00 |
|
|
|
