Combined with an electric actuator the controllers are a self-acting flow controllers with integrated control valve. The working pressure across the control valve is kept constant. The controllers are primarily used in district heating systems for circulation water with a max. temperature of 150º C.
Function of the controller: the diaphragm in the controller regulates the differential pressure across an integrated throttle valve according to the effect, the spring power has on the diaphragm. The manual setting of the throttle valve will determine the effective max. flow volume. Additionally the electrical actuator will operate from zero to max. flow according to the load. Fonctions et caractéristiques
- DN 15 - 125 mm
- Coefficients kvs 1,6 - 160 m³/h
- PN 16, 25, 40 bars
- Plage de temp. max. 150°C*