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Replacement of Satchwell "AMS" or "AMSH" (high torque) series Spring Return Rotary Actuator

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Replacement of Satchwell "AMS" or "AMSH" (high torque) series Spring Return Rotary Actuator

Picard Product_Support
‎2018-09-10 12:04 AM

Last Updated: Administrator CraigEl Administrator ‎2022-08-10 02:03 AM

Issue

Satchwell "AMS" and "AMSH" series Spring Return Rotary Actuator requires replacement by S-E M700 Spring Return Linear Actuator due to obsolescence.

Product Line

Field Devices

Environment

  • Satchwell "AMS" series Spring Return Rotary Actuator installed on Satchwell MJF, MZ, MZF, VJF, VSF, VZ or VZF series Plug and Seat Valve Body.
  • Satchwell "AMSH" series Spring Return Rotary Actuator installed on Satchwell MZF or VZF series 125mm and 150mm Plug and Seat Valve Body.
  • N.B.
  • Where a Satchwell "AMS" series Spring Return Rotary Actuator is installed on a Satchwell VV Butterfly Valve Body then NO simple Actuator replacement is available.
  • See Replacement of Satchwell V V series Butterfly Valve Body

Cause

Obsolescence of Satchwell AMS and AMSH series Spring Return Rotary Actuator.

Resolution

  1. The new actuator is 24Vac and the control signal will need to be converted from 230Vac to 24Vac, this could be achieved by a transformer and 2 off 230Vac relays. The old signals switch the coils of the relays. The relay contacts switch 24Vac to the new actuator.
  2. Replace Satchwell AMS or AMSH series Spring Return Rotary Actuator with S-E M700 Spring Return Linear Actuator and Linkage Kit:
    AMS = M700 + L7SV (880-0126-000) Linkage Kit.
    N.B.
    M700 is available with two different spring return actions
    M700 - SRSU (880-0430-000) = Spring Return Spring Up          ( M700 - SRSU will CLOSE a Satchwell Valve.)
    M700 - SRSD (880-0440-000) = Spring Return Spring Down     ( M700 - SRSD will OPEN a Satchwell Valve.)
  3. Should the Satchwell AMS series Actuator include a wired Auxiliary Switch then the following S-E M700 Actuator specifications which include 2 independent 24 volt 4 amp AC-1 rated SPDT Auxiliary End Point Switches should be considered as appropriate:
    M700 - S2 - SRSU (880-0431-000)
    M700 - S2 - SRSD (880-0441-000)
  4. Alternatively Auxiliary Switch Pack S2 (880-0104-000) - Two independent 24 volt 4 amp AC-1 rated SPDT Auxiliary End Point Switches may be purchased separately permitting local installation.
  5. Particular care should be taken when selecting a TAC Forta M700 Spring Return Actuator to replace an existing Satchwell AMS Spring Return Actuator.

Please refer to Replacement of Satchwell "AL..S" series Spring Return Linear Actuator.

Please check the latest catalog for current equipment.

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