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Honeywell ML6420 manual

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Table of contents for the manual

  • Page 1

    PRODUCT DAT A 63-2533-03 ML6420, ML7420 Non-S pring Return Electric Linear V alve Actuators APPLICATION The ML6420 Non-S pring Return Electric Linear V alve Actuators are floating control actuators used with controllers that provide a switched or fl oating single-pole d ouble-throw (spdt) output. These actuat ors operate standard Honeywe ll valves [...]

  • Page 2

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 63-2533—0 3 2 ORDERING INFORMATION When purchasing replacement and modernizat io n products from your TRADELINE® whol esaler or distributor , refe r to the TRADELINE® Catalog or price sheets for complete ordering number . If you have additional questions, need further information,[...]

  • Page 3

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 3 63-2533—0 3 T able 1. Close-off ratings for ML6420, ML7420 Ele ctric Linear V alve Actua tors and Honeywell V a lves (psi). a Represents maximum pressure difference between the outlet and either of the two inlets. b Do not exceed 100 psi with V501 1G valves used in steam applicati[...]

  • Page 4

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 63-2533—0 3 4 Fig. 2. Attaching actuator to valve collar . Fig. 3. Securing actuator to va lve. Fig. 4. Removing ac tuator cover . Wiri ng CAUTION Electrical Shock or Equipment Damage Hazard . Can shock individua ls or short equipment ci rcuitry . Disconnect power supply before inst[...]

  • Page 5

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 5 63-2533—0 3 Fig. 7. ML7420 wiring usin g feedback output from a controller with a common tr ansformer . Fig. 8. ML7420 wiring using a 2 to 10 Vdc control signal and sep arate transformers . Fig. 9. ML7420 wiring using a 2 to 10 Vdc control sig nal and a comm on transformer . Fig. [...]

  • Page 6

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 63-2533—0 3 6 Fig. 13. Replacing actuator cover . M17428[...]

  • Page 7

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 7 63-2533—0 3 Auxiliary Potentiometers The 43191679 Auxiliary Potentio meters can be used as feedback potentiometers and to provide remote indi cation of valve position. See the In stallation Instructions packed with the potentiometers. Auxiliary Switches The 43191680 Dual Auxi liar[...]

  • Page 8

    ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS Automation and Control Solutions Honeywell Internationa l Inc. 1985 Douglas Drive North Golden Valley, MN 55422 customer.honeywell.com ® U.S. Registered T rademark © 201 1 Hone ywell International Inc. 63-2533—03 M.S. Rev . 07-1 1 Printed in U.S.A. Fig. 15. Co nnections for over r[...]