TWA Series actuators

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Electric zone valve actuators

TWA actuators electrically activate valves on hot water heating systems, where slow opening and closing is desirable to eliminate water hammer associated with quick acting valves.

The 24VAC, 2.0 VA actuators are available in a normally closed or normally open position, and with or without a valve position indicator.


TWA-A Actuator
24VAC 2.0 VA c/w valve position indicator.

Code No. Type Required Valve Body
088H3110 NC RA2000
088H3111 NO RA2000
088H3114 NC 4 Wire w/
end switch

NC=Normally Closed, NO=Normally Open.

TWA-V Actuator
24VAC 2.0 VA

Code No. Type Required Valve Body
088H3120 NC VMT (065F0102 or 065F0104 only)
088H3121 NO VMT (065F0102 or 065F0104 only)

NC=Normally Closed, NO=Normally Open


Type Name Language Valid for Updated Download File type
Catalog Hydronic Specialties Controls Catalog and Application Guide English Multiple 25 Mar, 2022 2.4 MB .pdf
Data sheet TWA Series Electric Actuator Datasheet English United States 17 Jan, 2017 886.0 KB .pdf

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