Flanges, flange dimensions and flange connections conform to ISO 7005 and EN 1092 respectively.
Valve types
2-port valves: VVF..
3-port valves: VXF..
Flange type
Type 21 (integral flange) as per ISO 7005 is an integral component of a pressure device.
Type of flange and flange face
 |
Type B Type B1 The illustration shows the transition from the flange to the valve body of the V..F.. valves (not true to scale, faces only outlined) |
 |
Type F (with recess) |
Gaskets
In the case of ISO 7005, the gaskets do not constitute part of the standard – in contrast to EN 1092.
Note
Up to DN 50, PN 25 is also used for PN 16
| Up to DN 50, the flange dimensions of pressure classes PN 16 and PN 25 are identical. For this reason, for kvs values ≤ 40 m3/h and nominal sizes ≤ DN 50, the valves of the V..F53.. line (PN 25) are listed in place of the valves of the V..F43.. line (PN 16). |  |
Connecting dimensions [mm]
PN 16/PN 25 to DN 50
| DN | D | K | D2 | Bolts | |
|---|---|---|---|---|---|
| Outside diameter of flange | Diameter of bolt circle | Diameter of bolt holes | Quantity | Size | |
| 10 | 90 | 60 | 14 | 4 | M12 |
| 15 | 95 | 65 | 14 | 4 | M12 |
| 20 | 105 | 75 | 14 | 4 | M12 |
| 25 | 115 | 85 | 14 | 4 | M12 |
| 32 | 140 | 100 | 18 | 4 | M16 |
| 40 | 150 | 110 | 18 | 4 | M16 |
| 50 | 165 | 125 | 18 | 4 | M16 |
Connecting dimensions [mm]
Bypass-Port B
The valve series VXF22, VXF32, VXF42, VXF43 and VXF53 have a greater interior diameter in bypass port B versus the nominal value. This is not a problem when used with any standard ISO7005 and EN1092 steel flanges but ensure that any connection method used is explicitly designed for a specific interior diameter is compatible with this grater interior diameter..
| DN | D3 | ||||
|---|---|---|---|---|---|
| Ø Inside diameter bypass-flange | |||||
| VXF22 | VXF32 | VXF42 | VXF43 | VXF53 | |
| 15 | - | 23 | 23 | - | 25 |
| 20 | - | - | 29 | - | 35 |
| 25 | 36 | 36 | 36 | - | 38 |
| 32 | - | - | 46 | - | 46 |
| 40 | 52 | 56 | 56 | - | 57 |
| 50 | 65 | 69 | 69 | - | 69 |
| 65 | 85 | 85 | 85 | 86 | 86 |
| 80 | 98 | 102 | 102 | 100 | 100 |
| 100 | 116 | 124 | 124 | 123 | 123 |
| 125 | - | 149 | 149 | 149 | 149 |
| 150 | - | 174 | 174 | 174 | 174 |