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VALVE ACTUATOR

ML6421A3005

Valve Actuator

  • Product Info
  • Literature
  • Accessories & Replacement Parts

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 Honeywell 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 Honeywell 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 (F)
14 F to 122 F
Ambient Temperature Range (C)
-10 C to +50 C
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

Accessories

312495/U

Large stem button provides anti-spin for CREVAL actuators with globe valves

43191679-101

Auxiliary Potentiometer for ML6421A

43191679-102

220 ohm Auxiliary Potentiometer for ML6421B

43191680-102

Dual Auxiliary Switch for CREVAL actuators

43196000-001

High Temp Kit for actuators with 3/4 inch (20 mm) stroke, stem button attachment

43196000-038

High Temp Kit for actuators with 1-1/2 inch (38 mm) stroke, stem button attachment