CRflDA INTERNATIONAL Installation dimensions ROUND VOLUME FLOW CONTROLLER RVC L]= installation length Selection table Application The round mechanical constant volume controller, type RVC, is suitable for both supply and exhaust of air in both high and low pressure systems. The controller keeps the air quantity constant (CAV) without auxiliary power and independent of the static initial pressure. The air flow is set at the factory, with adjustment possible within the whole control range by means of graduation. Technical information Characteristics: - suitable for air quantities of 40 to 4,500 m3/h - available in 9 sizes - operating temperature: -0°C to +100°C - differential pressure range: minimum differential pressure (see diagram 1) to maximum 1000 PA - air quantity-control precision: +/-10% (if <100 m3/h, variation to 10 m3/h) - recommended air speed: 4.5 m/s (minimum 2.7 m/s) - low resistance - can be assembled in any position - short fitting length - control mechanism is maintenance free Construction: - T-housing: smooth round tube made of galvanized steel sheet, laser-welded. With a plug and socket connection with rolled rubber sealing ring on both ends. Specifications subject to change © 9-2009

- valve face, valve spindle and spring made of stainless steel materials - synthetic bearings - provided with 25 or 50 mm of insulation upon request - volume control provided with servo motor: upon request Specifications description Circular air volume controller for constant volume systems, mechanically independent operation without auxiliary power, suitable for inlets and outlets, differential pressure range to 1000 PA. Excellent air quantity accuracy, maintenance-free and can be fitted in any position. Made of galvanized steel sheet with plug and socket connections and rubber seals. The air...