Damper Actuator Pneumatic Spring Return 18-1/4 x 6-7/8 x 6-5/8 Inch 8-13 Pounds per Square Inch

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.

• 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