
Valve Finder
Underground ball valve
Series 157, welding / welding, EN (DIN), full bore, DN 150-400, PN 25

DN 150-400
Materials
| Body | DN 150-350: Steel, P235GH (1.0345) DN 400: Steel, P355 NL1 (1.0566)/ GP240GH (1.0619) |
| Ball | DN 150-400: Stainless steel, X5CrNi18-10 (1.4301) |
| Ball seal | DN 150-400: PTFE+C |
| Stem | DN 150-400: Stainless steel, X8CrNiS18-9 (1.4305) |
| Stem seal | DN 150-400: FPM |
| Top of Stem | DN 150-400: Stainless steel, X5CrNi18-10 (1.4301) |
Mounting
| welding / welding, EN (DIN) |
Operation
| DN 150-400 | free shaft |
We recommend angle gear operation for sizes DN 150 and larger.
Operating conditions
| Temperature | -20 °C - +200 °C |
| Leakage rate | A (EN 12266-1) |
Below -20 °C contact manufacturer. Lowest allowed ambient temperature -40 °C.

DN 150-400
water area
Steam area (not allowed)
short-term working area
Dimensions
DN 150-400

DN 150-300

DN 350-400
| DN | PN | Product no. | D | D1 | D2 | D3 | D4 | H1 | H2 | H3 | L | S | Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 150 | 25 | 157150/S/F12 | 150.0 | 168.3 | 273.0 | 76.1 | 35 | 490.0 | 406 | 334 | 350 | 4.5 | 36 |
| 200 | 25 | 157200/S/F14 | 200.0 | 219.1 | 355.6 | 88.9 | 40 | 525.0 | 416 | 327 | 400 | 5.0 | 62 |
| 250 | 25 | 157250/S/F16 | 250.0 | 273.0 | 419.0 | 101.6 | 50 | 571.0 | 434 | 341 | 530 | 5.0 | 98 |
| 300 | 25 | 157300 | 290.0 | 323.9 | 508.0 | 114.3 | 50 | 603.0 | 440 | 329 | 686 | 5.6 | 167 |
| 350 | 25 | 157350 | 340.0 | 355.6 | 610.0 | 168.3 | 70 | 680.0 | 502 | 350 | 762 | 6.3 | 308 |
| 400 | 25 | 157400 | 390.0 | 406.0 | 660.0 | 178.0 | 90 | 720.0 | 516 | 350 | 914 | 7.1 | 582 |
Product number conversions
| Product no. | Old Naval No |
|---|---|
| 157150/S/F12 | 23469405 |
| 157200/S/F14 | |
| 157250/S/F16 | |
| 157300 | 23469705 |
| 157350 | 23469805 |
| 157400 | 23469905 |




