naval steel ball valves , manual gear, welding / welding, GOST, DN 200-400, full bore
Materials
| Body | DN 200-400 : Steel, P235GH (1.0345) |
| Ball | DN 200-400 : Stainless steel, X5CrNi18-10 (1.4301) |
| Ball seal | DN 200-400 : PTFE+C |
| Stem | DN 200-400 : Stainless steel, X8CrNiS18-9 (1.4305) |
| Stem seal | DN 200-400 : FPM |
Operation
DN 200-400 : Valve is equipped with manual gear
For type and features of manual gear please refer to: www.vexve.com/en/actuators
Operating conditions
-20 °C – +200 °C
Below -20 °C contact manufacturer
Lowest allowed ambient temperature -40 °C
Leakage rate A (EN 12266-1)

Pressure-temperature diagram DN 50–400
Dimension

DN 150-300

DN 100-400

DN 350-400
| DN | PN | Product no. | A | B | C | D | D1 | D2 | D3 | E | H1 | L | S | kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200 | 25 | 234436/GS | 301 | 294 | 97 | 200 | 219.0 | 355.6 | 300.0 | 345 | 135 | 400 | 6 | 78.0 |
| 250 | 25 | 234437/GS | 363 | 343 | 117 | 250 | 273.0 | 419.0 | 600.0 | 413 | 148 | 530 | 6 | 123.0 |
| 300 | 25 | 234438/GS | 363 | 418 | 117 | 290 | 325.0 | 508.0 | 600.0 | 487 | 206 | 686 | 7 | 216.0 |
| 350 | 25 | 234495/GS | 440 | 500 | 138 | 340 | 377.0 | 610.0 | 500.0 | 573 | 267 | 762 | 7,0 | 305.0 |
| 400 | 25 | 234479/GS | 471 | 576 | 180 | 390 | 426.0 | 660.0 | 500.0 | 648 | 300 | 914 | 7 | 603.0 |
Product numbers and downloads
| Product No | EAN | LVI | RSK | NRF | MM | DN | PN | Kv | Photo | kg |
|---|---|---|---|---|---|---|---|---|---|---|
| 234436/GS | 200 | 25 | 78.0 | |||||||
| 234437/GS | 250 | 25 | 123.0 | |||||||
| 234438/GS | 300 | 25 | 216.0 | |||||||
| 234495/GS | 350 | 25 | 305.0 | |||||||
| 234479/GS | 400 | 25 | 603.0 |
Technical documentation for the product
Certificates

Vexve Oy Finnish key flag certificate EN
Operation manuals

Naval steel ball valves, installation, operation and maintenance manual

Steel ball valves, coupling dimensions












