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Description and Application These compact but powerful direct-coupled ControlSet® actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven fail-safe with switch-selectable direction provides consistent torque in both powered and fail-safe modes. A patented noise reducer provides whisper-quiet operation in both modes. A minimum torque of 25 (MEP-42xx), 45 (MEP-45xx), or 90 (MEP-49xx) in-lb. is availa …

Pressure Dependent Valves 1)What type of valve would the customer like?Ball Valve (CCV, ZoneTight, Industrial), Globe Valve or Butterfly Valve 2)Calculating the CV.What is CV? CV = The amount of water flow (GPM) through a fully open valve with 1 psi pressure drop.Why is CV important?If CV is too high, that means the valve is oversized and this will result in sloppy control and inefficient system performance.If CV is too low, that could result in insufficient flow and starve the coil. Y …

The Belimo 10 Step process for sizing and selecting a damper actuator:1)What is the Area of the damper?We need to find the height and width of the damper. The customer may provide this in millimetres (mm). If so, multiply the millimeters by 0.039 to convert it into inches. Once in Inches, multiply the height and width and divide by 144 to get the area in square ft (sq. ft). If the customer provides it is Feet (ft), no need to convert it to inches. The height and width can just be multiplie …