FIG. 1 — GENERAL VIEW
DN15 – DN1400 · PN25 · DIMS IN MM
Gear Operated Fully Welded Ball Valve
The gearbox version of the heating series: a fully welded ball valve that turns by hand at sizes where a lever no longer gives enough torque. Forged carbon steel body, PTFE seat, welded ends and an ISO 5211 mounting pad on every size — DN15 to DN1400 at PN25. Used on the larger branches and trunk lines of district heating networks.
- SIZE
- DN15 – DN1400
- PRESSURE
- PN25
- BODY
- ASTM A105 / P235GH
- TEMPERATURE
- −45…+200 °C
No actuator to maintain
A reduction gearbox brings a large valve within handwheel effort — no power supply, no actuator to service.
Gearbox fitted from DN125
Smaller sizes are normally supplied lever operated; the ISO 5211 pad is machined on every size either way.
Tested and traceable
Shell and seat pressure-tested to EN 12266-1, and traceable by heat number.
Specifications & standards
Values below are for the standard configuration. Other pressure ratings, trims and end connections are available on request.
NOT FOR STEAM SERVICE — PTFE seat, suitable to +200 °C. For steam or higher temperatures ask for the metal-seated version.
Dimensions & weight
Taken from the verified EN / DIN tables for this body. Sizes in this series: DN15 – DN1400.
| DN | PN | L (MM) | H (MM) | WEIGHT (KG) |
|---|---|---|---|---|
| DN125 | 25 | 350 | 365 | 30 |
| DN150 | 25 | 400 | 422 | 55 |
| DN200 | 25 | 400 | 520 | 94 |
| DN250 | 25 | 580 | 555 | 180 |
| DN300 | 25 | 680 | 637 | 245 |
| DN350 | 25 | 760 | 680 | 430 |
| DN400 | 25 | 914 | 750 | 670 |
| DN500 | 25 | 1080 | 820 | 1100 |
DN600 – DN1400 is made to order in this series — L, H and weight are issued with the quotation.
Related series
Other series from the same factory, built to the same welded, gasket-free principle.



