The CVR round mechanical constant air volume valves are manufactured of galvanised sheet metal and are supplied ready for installation. The air volume set point is factory adjusted but can easily be changed via an indicating dial on site. There is a built in shock absorber which eliminates any bouncing of the mechanical air volume control damper caused by turbulent air. The shock absorber provides clean air volume flow at all times. The CVR works between a minimum back pressure of 50Pa and a maximum of 1000 Pa. If a constant volume has been adjusted to 500m3/h and the operating pressure is 250 Pa and the pressure changes suddenly to 1000 Pa, the valve would adjust instantly to always provide 500 m3/h regardless of the changing back pressure. A motor driven unit is available to change the set point from remote which is ideal if a variable volume control is to be achieved. The motor can be used in conjunction with the DPC controllers and is ideal for night set back energy saving.
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 with a CMR DPC controller and fast actutaor. It is the ideal valve for constant air volume or pressure control applications and it worlks in conjunction with all CMR DPC controllers. 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.
The VPR round pressure control valves are manufactured in galvanised sheet metal. 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 Valve with a heavy duty IP65 actuator. It is the ideal valve for pressure control applications and it worlks in conjunction with all CMR DPC controllers. All valves can be fitted with pneumatic actuatorsand and an Atex certificate. The valves are airtight to DIN 1946 Part 4 and are available also in stainless steel. Epoxy and PUR coating is possib le as an optional.
The PFR venturi valves form a complete Fume Hood control System manufactured by CMR, which consists of the PFR venturi valves made of PPs and are complete with volume limiting and fast acting actuator with a response time of less than 1 second. A complete LAMS (Laboratory Air Management System) is standard which includes Room Extract, Room Make up Air with heating and cooling function and Fresh Air By-Pass Plenum control. The picture shows a CMR compact fume hood controller which is factory built and ready for installation. Simply connect the power 24V, 110V or 230Vac and the modbus communication network as well the remote alarm panel to the fume cupboard and it is ready to operate. The installation and commissioning takes less than an hour.The picture shows a typical Fume hood controller with all controls built onto the valve ready for installation.
The PVR round valves are manufactured of PPs with a Venturi air volume measurement device built in. They can all be equipped with the CMR medium or fast speed actuators. The fastest electric Actuator available is 5s for 60 degrees. The picture shows a the PVR valve with a fast actuator. All valves can be fitted with pneumatic actuators which are faster then 2s for a 60 degree rotation. The venturi provides an accurate air volume measurement and is factory calibrated and any DPC , P-Sensor , V-Sensor or DPM can be connected. The dampers are air tight to DIN 1946 Part 4. Counterflanges and Gaskets are also available as an optional.
The PPR round valves are manufactured without Venturi air volume measurement devices and can all be equipped with the CMR medium or fast speed actuators. The fastest electric Actuator available is 5s for 60 degrees. The picture shows a PPR valve with a fast Actuator. All valves can be fitted with pneumatic actuators which are faster then 2s for a 60 degree rotation. The dampers are air tight to DIN 1946 Part 4. Flanges and Counter Flanges with Gaskets are available as an optional.
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