VVR Venturi Volume Valve data sheet ... (PDF)
The VVR round venturi valves are manufactured in galvanised sheet metal and are supplied with a venturi air volume measurement device. They can all be equipped with the CMR medium or fast speed actuators. The fastest Electric Actuator available is 4s for 90 degrees. The picture shows a Venturi Valve without actutaor. It is the ideal valve for constant air volume or pressure control applications. All valves can be fitted with pneumatic actuators and an Atex certificate can be supplied. The venturi air volume measurement devices provide an accurate air volume measurement and are factory calibrated. The valves are airtight to DIN 1946 Part 4 and are available also in stainless steel. Epoxy and PUR coating is possible as an optional.