ISO250 HV Flanges
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.
Ordering Table
All dimensions listed in the table below, unless otherwise stated, are in inches.
All dimensions listed in the table below, unless otherwise stated, are in millimeters.
(Click column headers to sort data)
| Flange Size/OD | Type | Flange Material | Drawing | Nominal Tube OD | Bore | Counter Bore | Thickness | Bolt Circle Dia. | Bolt Hole Dia. | # of Bolt Holes | Minimal Number of Clamps | Optimal Number of Clamps | Setback | Description |
|
Part Number | Price | In Stock | Add To Cart | Accessories | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange Size/OD | Type | Flange Material | Drawing | Nominal Tube OD | Bore | Counter Bore | Thickness | Bolt Circle Dia. | Bolt Hole Dia. | # of Bolt Holes | Minimal Number of Clamps | Optimal Number of Clamps | Setback | Description |
|
Part Number | Price | In Stock | Add To Cart | Accessories | ||||
| ISO250-F (13.19" OD) |
|
|
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10 | — | — | 0.63 | 12.205 | 0.433 |
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— | — | — | BLANK FLANGE, AL,QF250-F STYLE BLANKS 10" TUBE |
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QF250-ABF
|
$277.70 |
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| ISO250-F (13.19" OD) |
|
|
|
10 | 9.88 | 10.020 | 0.63 | 12.205 | 0.433 |
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— | — | 0.25 | QF250 SOCKET WELD F-FLG ISO LARGE FLANGE |
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QF250-SWF
|
$363.70 |
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| ISO250-F (13.19" OD) |
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|
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10 | — | — | 0.63 | 12.205 | 0.433 |
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— | — | — | BLANK FLANGE, SS,QF250-F STYLE BLANKS 10" TUBE |
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QF250-BF
|
$471.45 |
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| ISO250-F (13.19" OD) |
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10-1/2 | 10.276 | 10.530 | 0.63 | 12.205 | 0.433 |
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— | — | 0.25 | FLANGE,ISO,316L SS,SOCKET WELD,QF250,267.46MM C-BORE,F-STYLE |
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QF250-SWF-M
|
$395.00 |
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| ISO250-K (11.42" OD) |
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|
10 | — | — | 0.47 | — | — | — |
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— | FLANGE,ISO,AL,BLANK,QF250, K-STYLE |
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QF250-ABK
|
$182.35 |
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| ISO250-K (11.42" OD) |
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|
|
10 | — | — | 0.47 | — | — | — |
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|
— | FLANGE,ISO,SS,BLANK,QF250, K-STYLE |
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QF250-BK
|
$380.25 |
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| ISO250-K (11.42" OD) |
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10 | 9.88 | 10.020 | 0.47 | — | — | — |
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0.25 | FLANGE,ISO,SS,SOCKET WELD, QF250,10.02"C-BORE,K-STYLE |
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QF250-SWK
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$294.30 |
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| ISO250-K (11.42" OD) |
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10-1/2 | 10.276 | 10.530 | 0.47 | — | — | — |
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0.25 | FLANGE,ISO,316L SS,SOCKET WELD,QF250,267.46MM, C-BORE,K-STYLE |
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QF250-SWK-M
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P.O.R. |
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| Flange Size/OD | Type | Flange Material | Drawing | Nominal Tube OD | Bore | Counter Bore | Thickness | Bolt Circle Dia. | Bolt Hole Dia. | # of Bolt Holes | Minimal Number of Clamps | Optimal Number of Clamps | Setback | Description |
|
Part Number | Price | In Stock | Add To Cart | Accessories | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange Size/OD | Type | Flange Material | Drawing | Nominal Tube OD | Bore | Counter Bore | Thickness | Bolt Circle Dia. | Bolt Hole Dia. | # of Bolt Holes | Minimal Number of Clamps | Optimal Number of Clamps | Setback | Description |
|
Part Number | Price | In Stock | Add To Cart | Accessories | ||||
| ISO250-F (335.03 mm OD) |
|
|
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254 | — | — | 16.002 | 310.007 | 10.998 |
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— | — | — | BLANK FLANGE, AL,QF250-F STYLE BLANKS 10" TUBE |
|
QF250-ABF
|
$277.70 |
|
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| ISO250-F (335.03 mm OD) |
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|
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254 | 250.952 | 254.508 | 16.002 | 310.007 | 10.998 |
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— | — | 6.350 | QF250 SOCKET WELD F-FLG ISO LARGE FLANGE |
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QF250-SWF
|
$363.70 |
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| ISO250-F (335.03 mm OD) |
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|
|
254 | — | — | 16.002 | 310.007 | 10.998 |
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— | — | — | BLANK FLANGE, SS,QF250-F STYLE BLANKS 10" TUBE |
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QF250-BF
|
$471.45 |
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| ISO250-F (335.03 mm OD) |
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266.700 | 261.010 | 267.462 | 16.002 | 310.007 | 10.998 |
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— | — | 6.350 | FLANGE,ISO,316L SS,SOCKET WELD,QF250,267.46MM C-BORE,F-STYLE |
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QF250-SWF-M
|
$395.00 |
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| ISO250-K (290.07 mm OD) |
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|
|
254 | — | — | 11.938 | — | — | — |
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— | FLANGE,ISO,AL,BLANK,QF250, K-STYLE |
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QF250-ABK
|
$182.35 |
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| ISO250-K (290.07 mm OD) |
|
|
|
254 | — | — | 11.938 | — | — | — |
|
|
— | FLANGE,ISO,SS,BLANK,QF250, K-STYLE |
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QF250-BK
|
$380.25 |
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| ISO250-K (290.07 mm OD) |
|
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|
254 | 250.952 | 254.508 | 11.938 | — | — | — |
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6.350 | FLANGE,ISO,SS,SOCKET WELD, QF250,10.02"C-BORE,K-STYLE |
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QF250-SWK
|
$294.30 |
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| ISO250-K (290.07 mm OD) |
|
|
|
266.700 | 261.010 | 267.462 | 11.938 | — | — | — |
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6.350 | FLANGE,ISO,316L SS,SOCKET WELD,QF250,267.46MM, C-BORE,K-STYLE |
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QF250-SWK-M
|
P.O.R. |
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