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Product Series


MEP-4000/4800 Series ControlSet Actuators (40/80 in-lbs.)

These compact but powerful direct-coupled actuatos provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80 (MEP-48xx) inch-pounds is available over the 95° angular rotation.

The MEP-4002/4022/4802/4822 proportional actuator models accept a 0-10 volts DC control signal input from a thermostat, controller, or building automation system. "Anti-jitter" circuitry significantly reduces hunting and needless wear on the actuator and valve packing or damper components (from unnecessary miniscule position changes caused by undamped analog input signals). A user-initiated, auto-mapping feature provides better equipment control by reassigning the 0-10 volts DC input signal range over a reduced rotation range (from 45° to 95°). These models also feature a switch-selectable, 0-5 or 0-10 volts DC voltage feedback output that is proportional to the actuator position.

The MEP-4001/4003/4013/4021/4801/4813/4821 tri-state models are designed for use with floating thermostats, controllers, or building automation systems. The MEP-4013/4813 models feature a 10,000 ohm (+/- 10%), three-wire potentiometer feedback output. (Functionally like the MEP-4001, the MEP-4003 does not have the larger green top enclosure.)

The MEP-4021/4022/4821/4822 models also have a fully adjustable, built-in SPDT auxiliary switch, for remote position indication or controller and equipment interface.

MEP-4002V/4003V actuators have brackets with a patent-pending, quick-mounting mechanism that mounts directly on VFB-43...BC and VFB-46...BC series valve bodies (or VFB-43...BX and VFB-46...BX series with HPO-5074 kit). (See the “V” Models Valve Cross-Reference section in the data sheet for more information.)

All other MEP-4000s mount directly to 1/4- to 5/8-inch (6 to 16 mm) round shafts or 1/4- to 7/16-inch (6 to 11 mm) square shafts, eliminating the need for expensive and complicated linkages. A non-rotation bracket, to prevent lateral movement, is included with each actuator. A gear disengagement feature allows manual positioning of the actuator.

See also the modular MEP-4040/4842 and the fast-operating 10 in-lb. MEP-4101.

ProductData SheetDescription
MEP-4003 (Download) Tri-state (floating actuator without cover, 40 in-lbs.)
MEP-4001 (Download) Tri-state (floating), 40 in-lbs.
MEP-4002 (Download) Proportional (0-10 VDC) with voltage feedback (0-5 or 0-10 VDC) , 40 in-lbs.
MEP-4013 (Download) Tri-state (floating) with 10k potentiometer feedback, 40 in-lbs.
MEP-4021 (Download) Tri-state (floating) with SPDT auxiliary switch, 40 in-lbs.
MEP-4022 (Download) Proportional (0-10 VDC) with voltage feedback (0-5 or 0-10 VDC) and auxiliary switch, 40 in-lbs.
MEP-4801 (Download) Tri-state (floating), 80 in-lbs.
MEP-4802 (Download) Proportional (0-10 VDC) with voltage feedback (0-5 or 0-10 VDC) , 80 in-lbs.
MEP-4813 (Download) Tri-state (floating) with 10k potentiometer feedback, 80 in-lbs.
MEP-4821 (Download) Tri-state (floating) with SPDT auxiliary switch, 80 in-lbs.
MEP-4822 (Download) Proportional (0-10 VDC) with voltage feedback (0-5 or 0-10 VDC) and auxiliary switch, 80 in-lbs.
MEP-4002V (Download) MEP-4002 Proportional Actuator with Quick-Mount Bracket
MEP-4003V (Download) MEP-4003 Tri-State Actuator with Quick-Mount Bracket
Hang Fung Technology Company Limited
Tel:(852)2892 1992
Fax:(852)2836 0448
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