Spirax Sarco Inc. has released its Belimo electric actuators as an option in their product lineup. Designed for light industrial and HVAC applications, the actuators are suitable for either two position or modulating control and can be used with the B Series control valves and the 1.2 to 2in Spira-trol control valves. Two types of actuators are available. The NV Series is a purpose-designed control valve actuator, providing good differential pressure capability for valves up to 2 in. The series is available in spring-to-extend, spring-to-retract and stay-put versions. The AF Series is a damper-type actuator mounted to linkage, transforming its rotary motion to linear, with two versions: single and double motor. The spring fail-safe feature is standard, and the mounting orientation on the bracket will provide spring-to-extend or spring-to-retract operation. The standard offering includes steel, aluminum die-casting or ABS construction; 24V AC 50/60 Hz or 24V DC supply voltage; 4-20mA, 2-10V, pulse width modulation, floating point or on/off control signal; manual override; travel indicator on the actuator yoke; and integrated microprocessor. All versions have received UL, CSA and CE approval.