Air flow regulator EHSF

Tested and calibrated device for accurate Demand Control Ventilation ductwork (High Velocity) Functionally tested and calibrated Accurate measuring for an easy and fast commissioning Available in 9 sizes from 100 to 630 mm Galvanised steel All duct fittings are equipped with a sealing ring made of EPDM rubber Integrated orifice plate for air measurement Pneumatic pressure measuring optional Tightness class B EHSF is a measuring device for the Optivent system. It generates an electrical voltage or a pneumatic pressure which represents the actual air flow. The EHSF measuring device is available in nine sizes with circular connection spigots for duct diameters from 100 to 630 mm. • Electronic and pneumatic control equipment • Integrated orifice plate measurement circuits for control and manual flow measurement • Functionally tested and calibrated Supplied as standard with electronic control equipment, but can be supplied on request with pneumatic control equipment. The EHSF measuring device is available in nine sizes with circular connection spigots for duct diameters from 100 to 630 mm. Integrated orifice plate measurement with separate measurement circuits for control and manual flow measurement. The measuring device is functionally tested and calibrated with the air flow at the factory. All duct connections have spigot dimensions and are equipped with sealing rings made of rubber. EHSF reaches air tightness class B in accordance with EN1751:1998.