G21/2in 2-Port screwed bronze seat valve

2-port valves with threaded connections for the control of terminal units, chilled ceilings or heating zones.
Suitable media: Water (to VDI 2035), water with anti-freeze.

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

• Bronze CC499K valve body
• DN 10…DN 40
• kvs 0.25…25m3 /h
• Flat seal male threaded connections G...B to ISO 228-1 for
• Sets of ALG.. screwed fittings with threaded connection (available from Siemens) − SERTO compression fittings, type SO 00021.. (available from suppliers to the trade)
• Manual adjuster
• Can be equipped with SSB.. or SSC.. electromotoric actuators