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- 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.
Pneumatic Damper Actuator, High Force, Series: MP918B, 29 psi Safe Maximum Air Pressure, 3-1/2 in Stroke, 8 to 13 psi Spring, 160 lb at 0 psi/83 lb at 18 psi Net Force Exerted, 18-1/4 in Length, 6-5/8 in Width, 6-7/8 in Height, Domestic
- 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
- Deep drawn aluminum body
- Zero air consumption
- Barbed fitting for 1/4 in OD plastic tubing air connection
- 23.8 sq-in diaphragm effective area
- Spring return fail safe mode
- 5 to 95% RH humidity range
- UL Restrictions: UL listing applies only when used with UL classified Honeywell SD series leakage rated dampers or other dampers with which actuators are listed
- -40 to 158 deg F ambient temperature
- Domestic / ImportDomesticMaximum Air Pressure29 psi SafeNet Force Exerted160 lb at 0 psi/83 lb at 18 psiSpring Range8 to 13 psiStroke Length3-1/2 inHeight6-7/8 inLength18-1/4 inManufacturerHoneywellManufacturer #MP918B1154/USeriesMP918BTypeHigh ForceWidth6-5/8 in