Honeywell Pneumatic Damper Actuator:
Used for proportional control of medium- to large-size dampers in HVAC systems.
The MP918A,B are rolling diaphragm, piston-type actuators. The MP918A has a positive positioner.
Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell actuator models.
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.
Application Type Damper.
Actuator Force high.
Stroke (in) 3.5 in.
Stroke (mm) 90 mm.
Diaphragm Effective Area (sq in) 23.8 sq in.
Diaphragm Effective Area (sq cm) 154 sq cm.
Dimensions (in) 18 1/4 in. long, 6 7/8 in. high, 6 5/8 in. dia.
Dimensions (mm) 465 mm long, 175 mm high, 168 mm dia.
Maximum Operating Pressure (psi) 29 psi.
Maximum Operating Pressure (kPa) 200 kPa.
Temperature range (F) -40 F to +158 F.
Temperature range (C) -40 C to +70 C.
Type Spring return.
Air connections Barbed fitting for 1/4 in. O.D. plastic tubing.
Includes 14004062-001 External Trunnion Mounting Bracket with crankarm assembly.
Description Damper Actuator, Actuator force: High ,Spring Range: 3 psi to 13 psi.
Actuator Spring Range (psi) 3 psi to 13 psi.
Humidity Ratings (% RH) 5 to 95% RH.
Actuator Spring Range (kPa) 20 kPa to 90 kPa