Siemens SAS81.33U Fail-Safe Zone Valve Actuator
The SIEMENS Electric Zone Valve Actuator (MPN SAS81.33U) is a fail-safe zone valve actuator designed for use with the MT series of normally open valves. It operates on 24V AC/DC power and features a spring return…
SKU 3G-OTH-69361
Also listed as: SAS8133U · SAS81 33U · SAS81-33U
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SIEMENS Electric Zone Valve Actuator (MPN SAS81.33U) is a fail-safe zone valve actuator designed for use with the MT series of normally open valves. It operates on 24V AC/DC power and features a spring return mechanism for fail-safe positioning.
Frequently Asked Questions
What is the SIEMENS SAS81.33U electric zone valve actuator used for?
The SIEMENS SAS81.33U is a fail-safe zone valve actuator used in HVAC systems to control water or steam flow. It is designed for normally open MT series valves and provides spring return positioning on power loss, ensuring system safety in commercial buildings.
What are the specifications of the SIEMENS SAS81.33U actuator?
The SIEMENS SAS81.33U is a 24V AC/DC electric zone valve actuator with spring return fail-safe action. It is compatible with the MT series of normally open valves. The manufacturer part number is SAS81.33U, and it is a Siemens-branded fail-safe zone valve actuator.
Where to buy the SIEMENS SAS81.33U actuator worldwide?
3G Electric supplies the SIEMENS SAS81.33U actuator worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.
How to install the SIEMENS SAS81.33U spring return actuator?
Mount the SIEMENS SAS81.33U onto the MT series normally open valve stem, ensuring correct orientation. Connect 24V AC/DC power per the wiring diagram. The spring return engages automatically on power loss. Always follow local electrical codes and the manufacturer's installation manual.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens fail-safe zone valve actuators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
