UL components Recognized report R18118

• Rolling diaphragm operated Low friction shaft bearing Close tolerance on operating range and stroke Non-overlapping spring ranges for sequencing Corrosion-resistant materials Reliable long life UL restrictions - UL listing applies only when used with UL classified Honeywell SD Series leakage rated damper Zero air consumption Dual barbed fitting for 5/32 or 1/4 in OD tubing 6.6 sq-in diaphragm effective area Spring return fail safe mode Trunnion and right angle bracket-mounting 59.4 lb at 0 lb/sq-in/33 lb at 18 lb/sq-in/46.2 lb at 20 lb/sq-in net force exerted

These actuators are used for proportional control of variable volume terminal units, mixing boxes, and small to medium sized dampers. They are available in various operating ranges for either independent operation or sequence operation with other actuators. The MP909E has an optional adjustable stroke feature. The MP909H includes a positive positioner. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell actuator models.