HEVAC practice recommends to keep within heating and chilled systems minimal losses . However is equally important that adequate differential pressure are available for accurate flow measurement. The requirement is achieved on the basis of a realistic compromise between the need for accuracy and low Hydraulic losses.
The VIR variable orifice regulating valves ref .9500, 9505, 9550, 9555 (range from DN15 to DN300) support system designers and installers to better satisfy the end user comfort as well as the energy saving.
The VIR variable orifice regulating valve induces a difference in pressure to achieve flow measurement and which is of variable dimensions and geometry.
Drain device easy to apply, metering stations (range from DN15 to DN50) and orifice plate (range from DN50 to DN300) supplement the VIR product offer.