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FAQs - Frequently Asked Questions
FAQs - Frequently Asked Questions
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Siemens Electrothermal Actuators STA..3.. and STP..3.. series, designed for a wide range of applications. These electrothermal actuators represent the pinnacle of innovation, combining precision, robustness, and noise-free operation to ensure the optimal performance of your radiator valves, small valves, and Pressure Independent Control Valves (PICV).
Key Features:
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Versatile Voltage Options: The actuators are adaptable to various voltage options, including AC/DC 24 V with 2-point positioning signal or Pulse-Duration Modulation (PDM)/Time Proportional Integral (TPI), AC 230 V with a 2-point positioning signal, and AC 24 V with a Positioning signal DC 0-10 V. This adaptability ensures seamless integration into your existing systems.
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Reliable Positioning Force: With a robust positioning force of 100 N (90 N for specific variants), these actuators can confidently control various valves, maintaining precise climate settings in your interior spaces.
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Flexible Connectivity: Choose from a standard version with a connecting cable (offering options of 2 m, 1 m, or 0.8 m) or opt for actuators without a connecting cable. The latter can be effectively used with connecting cables that stretch up to 15 meters. Additionally, there are options with LED operating indication, auxiliary switches, or a DC 0-10 V module.
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Synchronization Capabilities: Certain variants support the synchronous operation of multiple actuators switched in parallel, ensuring that your climate control system works seamlessly.
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Visible Position Indication: A 270° visible position indication feature allows you to monitor the status of your valves at a glance.
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Easy Installation: Installing these actuators is a breeze thanks to the sliding sleeve lock (bayonet) and an adapter for mounting on third-party valves.
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Dismantling Protection (Optional): For added peace of mind, you can opt for the optional dismantling protection feature.
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Automatic Adaption: The actuators offer automatic adaption of close-dimension, reducing the need for manual adjustments.
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Robust and Maintenance-Free: Built to last, these actuators are robust, maintenance-free, and operate noise-free, ensuring a reliable and peaceful climate control experience.
Applications:
The Siemens Electrothermal Actuators STA..3.. and STP..3.. series are suitable for various applications, making them a versatile choice:
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Interior Rooms: Use them to maintain ideal climate conditions in interior spaces.
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Siemens Valves: These actuators are compatible with Siemens radiator valves VDN.., VEN.., and VUN.., small valves VD1..CLC, V..P47.., zone valves V..I46.., PICV VPP46.., VPI46.., VQP46.., VQI46.., and MiniCombiValves (MCV) VPD.. and VPE..
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Third-Party Valves: Direct assembly is possible with valves from Heimeier, Cazzaniga, Oventrop M30 x 1.5, Honeywell-Braukmann, and MNG. Alternatively, you can use an adapter for certain third-party valves.
Part Numbers:
STA73 Valve Actuator 100N 2.5mm Stroke AC/DC 24V 2-Pos SR (NC) (S55174-A100) - RUN OUT STOCK
STA63 Valve Actuator 100N 2.5mm Stroke AC 24V Modulating SR (NC) (S55174-A104)
STP63 Valve Actuator 100N 2.5mm Stroke AC 24V Modulating SR (NO) (S55174-A105)