Volume flow controllers VSRVE is for optimization of energy economy in ventilation systems by adjusting the volume flow of the supply and exhaust air to the requirements of the rooms. The adjustment is made by the maintenance-free, motor driven damper via the VAV-compact-controller (IP 54, CE to 89336 / EWG). The input signal is received from an averaging differential pressure sensor.

• Control function VAV-CAV- or open-loop-operation in external VAV-control-circuit.
• Feedback signal damper position for fan optimiser-systems, current volume flow ordifferential pressure.
• Demand-dependent setting for variable volume flow with constant reference variable and DDC- or BUS-System. The operating range Vmin …Vmax can be controlled viaswitchable modes.
• rectangular volume flow controller with nominal dimensions 200×100 mm to 1000×1000 mm
• for volume flows up to 36000 m³/h
• control range 20-100% of the nominal volume flow (approx. 2 m/s – 10 m/s)
• regulating dampers counter-rotating
• elongated hole both sides
• external toothed-wheels protected with removable cover

Material: Galvanised steel, differential pressure sensor PBT and aluminium

VSRVEI: Volume flow controller with insulation sheath to minimize noise emission.