Data Sheet for Product

4
Siemens
A6V12986007_de--_b
2022-02-07
The valve is closed in a de-energized state for most valve applications featuring thermal
actuators.
Actuators with the opposite control action are used when the reverse function is required:
The valve is opened in a de-energized state.
⇒ NO function: STA.. + NC valve / STP.. + NO valve
Response at de-energized actuator
Valve Type STA..21.. STP..21..
Radiator valves VDN.., VEN.., VUN.. Closed Open
1), 2)
Small valves VD1..CLC.. Closed Open
1), 2)
VVP47.., VPI47.., VMP47.. A ↔ AB open
1), 2)
A ↔ AB closed
Zonen valves VVI46.., VXI46.. AB ↔ A closed AB ↔ A open
1), 2)
PICV VPD.., VPE..
VPP46.., VPI46..
VQP46.., VQI46..
Closed Open
1), 2)
1)
Controller must support NO valve actuator combinations.
2)
Combination no recommended, as it makes no sense in terms of energy outside of demand period.
Positioning times, opening / closing
S Positioning signal
H Stroke in %
Actuator ST..321.. (AC 230 V)
Actuator ST..121.. (AC/DC 24 V)
Warm start
● Values at 25 °C ambient temperature
● The positioning time depends on the voltage and ambient temperature.