Overview
Used for proportional control of medium- to large-size dampers in HVAC systems. The MP918A,B are rolling diaphragm, piston-type actuators. Positive Positioner available. Replacement devices for most competitors products
Features
Rolling diaphragm operated.Low friction shaft bearing.Close tolerance on operating range and stroke.Versatile mounting and connecting hardware.Non-overlapping spring ranges for sequencing.Reliable-long life.
- Dimensions (in.) : 20 1/2 in. long x 8 in. high x 6 5/8 in. diameter
- Dimensions (mm) : 520 mm long x 205 mm high x 168 mm diameter
- Maximum Safe Operating Pressure (psi) : 25 psi
- Maximum Safe Operating Pressure (kPa) : 172 kPa
- Temperature Range (F) : -20 F to +158 F
- Temperature Range (C) : -29 C to +70 C
- Approvals, Underwriters Laboratories Inc. : Components Recognized: Report R18118
- Operating Humidity Range (% RH) : 5 to 95% RH
- Actuator Type : Damper
- Fail Safe Mode : Spring Return
- Stroke (in.) : 3 1/2 in.
- Stroke (mm) : 90 mm
- Actuator Force : High
- Spring Range (psi) : Positive positioner 10 psi span (5 psi spring included)
- Spring Range (kPa) : Positive positioner 69 kPa span (34 kPa spring included)
- Diaphragm Effective Area (sq in.) : 23.8 sq in.
- Diaphragm Effective Area (sq cm) : 154 sq cm
- Air connections : 5/32 in. push-on barb (Pilot), 1/4 in. push-on barb (main.)
