Siemens Building Technology SAX81.03U Actuator
The Siemens SAX81.03U Actuator is a field-proven electromotoric valve actuator engineered for precise floating control in commercial HVAC systems. This non-spring return actuator is purpose-built for Siemens Flowrite 599 Series and flanged pressure independent control valves with a 3/4-inch (20 mm) stroke. Operating on a versatile 24Vac/Vdc supply, it delivers a robust 800 N (180 lb) positioning force, ensuring reliable performance in hot water, chilled water, and low-pressure steam applications. For technicians, the direct-coupled installation means no special tools are required for mounting, while the 30-second positioning time provides rapid response to 3-position control signals. Diagnostic features like the visual stroke indication and a manual override allow for high-efficiency commissioning and troubleshooting. This UL-listed unit also supports field-installable accessories, including auxiliary switches, potentiometers, and stem heating elements for specialized environments.
Key Benefits for Contractors:- Universal Compatibility: Optimized for Siemens 599 series valves and flanged PICVs with a standard 3/4-inch stroke.
- Rugged Performance: Delivers 180 lb nominal force to handle high-differential pressure across large-stroke globe valves.
- Efficiency-First Design: Non-spring return operation with maintenance-free internal gearing for long-term installation stability.
- Simplified Wiring: Supports both 24Vac and 24Vdc operating voltage for integration with diverse building automation systems.
- NEMA Rated: Standard IP54/NEMA 1 protection, with NEMA 3R capability when used with the optional ASK39.1 weathershield.
Is the Siemens SAX81.03U a fail-safe actuator?
No, this model is a non-spring return (NSR) actuator. It maintains its last position upon loss of power rather than returning to a default open or closed state.
What valves are compatible with the SAX81.03U?
It is designed for Siemens Flowrite 599 Series 2-way and 3-way valves and various pressure independent control valves requiring a 20 mm stroke.
Can I use this actuator with a 0-10V signal?
The SAX81.03U is specifically for 3-position/floating control. For proportional 0-10V or 4-20mA applications, the Siemens SAX61.03U would be the correct technical equivalent.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Building Technology SAX81.03U Actuator
The Siemens SAX81.03U Actuator is a field-proven electromotoric valve actuator engineered for precise floating control in commercial HVAC systems. This non-spring return actuator is purpose-built for Siemens Flowrite 599 Series and flanged pressure independent control valves with a 3/4-inch (20 mm) stroke. Operating on a versatile 24Vac/Vdc supply, it delivers a robust 800 N (180 lb) positioning force, ensuring reliable performance in hot water, chilled water, and low-pressure steam applications. For technicians, the direct-coupled installation means no special tools are required for mounting, while the 30-second positioning time provides rapid response to 3-position control signals. Diagnostic features like the visual stroke indication and a manual override allow for high-efficiency commissioning and troubleshooting. This UL-listed unit also supports field-installable accessories, including auxiliary switches, potentiometers, and stem heating elements for specialized environments.
Key Benefits for Contractors:- Universal Compatibility: Optimized for Siemens 599 series valves and flanged PICVs with a standard 3/4-inch stroke.
- Rugged Performance: Delivers 180 lb nominal force to handle high-differential pressure across large-stroke globe valves.
- Efficiency-First Design: Non-spring return operation with maintenance-free internal gearing for long-term installation stability.
- Simplified Wiring: Supports both 24Vac and 24Vdc operating voltage for integration with diverse building automation systems.
- NEMA Rated: Standard IP54/NEMA 1 protection, with NEMA 3R capability when used with the optional ASK39.1 weathershield.
Is the Siemens SAX81.03U a fail-safe actuator?
No, this model is a non-spring return (NSR) actuator. It maintains its last position upon loss of power rather than returning to a default open or closed state.
What valves are compatible with the SAX81.03U?
It is designed for Siemens Flowrite 599 Series 2-way and 3-way valves and various pressure independent control valves requiring a 20 mm stroke.
Can I use this actuator with a 0-10V signal?
The SAX81.03U is specifically for 3-position/floating control. For proportional 0-10V or 4-20mA applications, the Siemens SAX61.03U would be the correct technical equivalent.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens SAX81.03U Actuator is a field-proven electromotoric valve actuator engineered for precise floating control in commercial HVAC systems. This non-spring return actuator is purpose-built for Siemens Flowrite 599 Series and flanged pressure independent control valves with a 3/4-inch (20 mm) stroke. Operating on a versatile 24Vac/Vdc supply, it delivers a robust 800 N (180 lb) positioning force, ensuring reliable performance in hot water, chilled water, and low-pressure steam applications. For technicians, the direct-coupled installation means no special tools are required for mounting, while the 30-second positioning time provides rapid response to 3-position control signals. Diagnostic features like the visual stroke indication and a manual override allow for high-efficiency commissioning and troubleshooting. This UL-listed unit also supports field-installable accessories, including auxiliary switches, potentiometers, and stem heating elements for specialized environments.
Key Benefits for Contractors:- Universal Compatibility: Optimized for Siemens 599 series valves and flanged PICVs with a standard 3/4-inch stroke.
- Rugged Performance: Delivers 180 lb nominal force to handle high-differential pressure across large-stroke globe valves.
- Efficiency-First Design: Non-spring return operation with maintenance-free internal gearing for long-term installation stability.
- Simplified Wiring: Supports both 24Vac and 24Vdc operating voltage for integration with diverse building automation systems.
- NEMA Rated: Standard IP54/NEMA 1 protection, with NEMA 3R capability when used with the optional ASK39.1 weathershield.
Is the Siemens SAX81.03U a fail-safe actuator?
No, this model is a non-spring return (NSR) actuator. It maintains its last position upon loss of power rather than returning to a default open or closed state.
What valves are compatible with the SAX81.03U?
It is designed for Siemens Flowrite 599 Series 2-way and 3-way valves and various pressure independent control valves requiring a 20 mm stroke.
Can I use this actuator with a 0-10V signal?
The SAX81.03U is specifically for 3-position/floating control. For proportional 0-10V or 4-20mA applications, the Siemens SAX61.03U would be the correct technical equivalent.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
