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TWA actuators



TWA actuators are used to electically activate valves on hot water heating systems, where slow opening and closing is desirable to eliminate water hammer associated with quick acting valves. TWA is a low voltage (24V), low power consumption actuator equipped with a visual indicator to show the open or closed position of the valve. TWA actuators can be selected to create either a normally open or a normally closed control. Maximum ambient temperature is 140F (60C).
TWA actuators

Technical data



Code No.TypeConnectionSupply Voltage
(V.a.c.)		Valve Function

TWA-A
088H3110 TWA-ARA 200024NC
088H3111 TWA-ARA 200024NO
088H3114 TWA-ARA 200024NC/S (with end-switch)

TWA-V
088H3120 TWA-VVMT (065F0102, 065F0104)24NC
088H3121 TWA-VVMT (065F0102, 065F0104)24NO


Documentation



Data sheet

TWA - Electric Actuator Valve
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Literature number: VDSBA122 Release date: 7/17/2007
Filename: TWA actuator-DS.pdf Size:  0.7 Mb
Language: US English
Instruction

Instructions TWA NO/NC
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Literature number: VISBH302 Release date: 12/15/2005
Filename: VI.SB.H3.02.pdf Size:  0.6 Mb
Language: English
TWA-A NC/S instructions
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Literature number: VISAQ102 Release date: 3/1/2003
Filename: VISAQ202_088R02471.pdf Size:  0.4 Mb
Language: English
Leaflet

Zone Valves
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Literature number: VBSBP122 Release date: 7/17/2007
Filename: Zone Valves_Brochure.pdf Size:  0.3 Mb
Language: US English