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Overview

The ML6421A,B Non-Spring Return Electric Linear Valve Actuators are suitable for use with low-voltage, single-pole double-throw (spdt), Series 60 two-position and floating controllers. These actuators operate standard valves in heating, ventilating, and air conditioning (HVAC) applications. The ML7421A,B Non-Spring Return Electric Linear Valve Actuators are modulating control actuators used with control that provide an analog output of 0 to 10 Vdc or 2 to 10 Vdc. These actuators operate standard valves in HVAC applications. An internal selector plug can be used to reverse the direction of action.

Features

Easy and quick installation on valves with 1 3/8 in. bonnet and 3/4 in. stroke, or with 1 7/8 in. bonnet and 1 1/2 in. stroke
High force for VGF Pressure-balanced valves
No separate linkage required
Conduit connector standard
No adjustments required on linkage
Accurate valve positioning
Low power consumption
High close-off ratings
Force limiting end switches
Manual operator
Synchronous motor
Maintenance free

Product Specifications

Application: HVAC
Includes: 1/2 in. conduit hub; 1/2 in. flexible conduit adapter
Mounting: Directly on V5011/V5013 Globe Valves and VGF Flanged Globe Valves
Approvals, Underwriters Laboratories Inc.: Flammability Rating UL94V-5V
Approvals, Canadian Standards Association: Certified
Electrical Connections: Screw terminals
Shipping and Storage Temperature Range (F): -40 F to +158 F
Shipping and Storage Temperature Range (C): -40 C to +70 C
Approvals, CE: Recognized
Ambient Temperature Range (C): -10 C to +50 C
Ambient Temperature Range (F): 14 F to 122 F
Environmental, Electrical or Ingress Protection Rating: Class I Insulation (24 Vac),IP54
Internal Auxiliary Switch: 0
Fluid Temperature (C): 150 C Maximum
Fluid Temperature (F): 300 F Maximum
Actuator Type: Valve
Control Signal: SPDT; Two position; Floating
Fail Safe Mode: Stays in place
Torque Rating (lb-in.): 405 lbf
Torque Rating (Nm): 1800 N
Stroke (in.): 3/4 in.
Stroke (mm): 20 mm
Cable: Two knockout holes for 1/2 in. conduit standard on actuator case
Manual operation: Knob