Quarter-turn electric actuators boast rugged design ProMation Engineering’s P9-13 Series quarter-turn electric, non-spring return actuators feature a rugged, industrial grade design for use with all ball and butterfly valves or dampers requiring higher torque outputs from 17,500 in. lbs. to 40,500 in. lbs. The series features a self-locking hardened steel drive train for smooth operation, mechanical end of travel stops, and patented clutch-free manual override for single-handed positioning of the actuator in any situation. The P9-13 actuators include an integrated position indicator, two auxiliary switches, an internal low-power anti-condensation heater, and cast aluminum polymer coated housing with two ¾ in conduit connections that is rated NEMA 4X for safe exposure to high pressure hosing and corrosion resistance. Proportional control units accept a wide range of control signals while generating multiple feedback signals and are easily installed, calibrated, and adjusted in the field. The actuators are available for 120 VAC or 230 VAC single phase and complete 3 Phase offerings. They are ISO 5211 compliant, conform to AWWA C540 standards, are certified to CSA 22.2 standards including ANSI/UL50 and ANSI/UL 429, and are ARRA compliant.