25mm 3-port zone valve, internally threaded

3-port valves, internally threaded connections, for the control of zones or terminal units.

Suitable media: water (to VDI 2035), water with anti-freeze.

• For use in ventilation and air-conditioning systems for water-side terminal unit control in closed circuits, e.g. for induction units, fan-coil units, small reheaters and small re-coolers.
  • 2-pipe systems with 1 heat exchanger for heating and cooling
  • 4-pipe systems with 2 separate heat exchangers for heating and cooling
• In closed-circuit zone heating systems, for example: -
  • Separate floors in a building
  • Apartments
  • Individual rooms

With on/off characteristics

• Hot-pressed brass valve body
• DN 15, DN 20 and DN 25 kvs 2…5 m3 /h
• Internally threaded connections Rp to ISO 7-1
• Combined with electromotoric actuators, type SUA.., SSA31.04, SFA.. and electrothermal actuators STA..