Siemens Building Technology SFP71U Actuator
The Siemens SFP71U is a high-performance electronic zone valve actuator engineered for precise 2-position control in hydronic heating and cooling systems. Operating on a 24V AC power supply, this normally open (NO) actuator is purpose-built for seamless integration with Siemens 599 Series zone valves featuring a 1/10-inch (2.5 mm) stroke. Designed with a spring return fail-safe mechanism, it ensures the valve returns to its default open position during power loss, protecting terminal units like fan coils, radiators, and baseboard heaters from freezing or stagnant flow. The direct-coupled design allows for tool-free installation onto the valve bonnet, while the UL plenum rating makes it suitable for concealed ceiling and wall applications. A robust 105 N (24 lb) nominal force ensures reliable close-off pressure, making it a staple for contractors managing light commercial and residential HVACR projects.
Key Benefits- Efficient Installation: Features a direct-coupled universal bonnet connection that allows for mounting without specialized tools.
- Fail-Safe Protection: Reliable spring return (SR) functionality ensures a known fail-safe state during electrical outages.
- Manual Override: Includes a manual handle for manual positioning and commissioning before power is landed.
- Plenum Rated: Fully UL listed for installation in plenum spaces, adhering to strict building codes.
- Visual Diagnostics: Equipped with a visual position indicator to verify valve state at a glance.
Is the Siemens SFP71U compatible with other valve brands?
This actuator is specifically designed for the Siemens 599 Series zone valves. For non-Siemens bodies, verify stroke length and bonnet dimensions, as this unit is optimized for a 2.5 mm stroke.
Can this actuator be used in chilled water systems?
Yes, the SFP71U is designed for both hot and chilled water applications, provided the media temperature remains within the rated range (typically 34°F to 230°F).
What is the power consumption for sizing a transformer?
The unit draws approximately 9.8 VA during operation. Ensure your 24V Class 2 transformer is sized to handle the total VA load if running multiple actuators in a zone.
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.
Original: $80.41
-65%$80.41
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Description
The Siemens SFP71U is a high-performance electronic zone valve actuator engineered for precise 2-position control in hydronic heating and cooling systems. Operating on a 24V AC power supply, this normally open (NO) actuator is purpose-built for seamless integration with Siemens 599 Series zone valves featuring a 1/10-inch (2.5 mm) stroke. Designed with a spring return fail-safe mechanism, it ensures the valve returns to its default open position during power loss, protecting terminal units like fan coils, radiators, and baseboard heaters from freezing or stagnant flow. The direct-coupled design allows for tool-free installation onto the valve bonnet, while the UL plenum rating makes it suitable for concealed ceiling and wall applications. A robust 105 N (24 lb) nominal force ensures reliable close-off pressure, making it a staple for contractors managing light commercial and residential HVACR projects.
Key Benefits- Efficient Installation: Features a direct-coupled universal bonnet connection that allows for mounting without specialized tools.
- Fail-Safe Protection: Reliable spring return (SR) functionality ensures a known fail-safe state during electrical outages.
- Manual Override: Includes a manual handle for manual positioning and commissioning before power is landed.
- Plenum Rated: Fully UL listed for installation in plenum spaces, adhering to strict building codes.
- Visual Diagnostics: Equipped with a visual position indicator to verify valve state at a glance.
Is the Siemens SFP71U compatible with other valve brands?
This actuator is specifically designed for the Siemens 599 Series zone valves. For non-Siemens bodies, verify stroke length and bonnet dimensions, as this unit is optimized for a 2.5 mm stroke.
Can this actuator be used in chilled water systems?
Yes, the SFP71U is designed for both hot and chilled water applications, provided the media temperature remains within the rated range (typically 34°F to 230°F).
What is the power consumption for sizing a transformer?
The unit draws approximately 9.8 VA during operation. Ensure your 24V Class 2 transformer is sized to handle the total VA load if running multiple actuators in a zone.
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.
