Siemens Building Technology SKD82.51U Actuator
The Siemens Building Technology SKD82.51U Actuator is a heavy-duty electro-hydraulic valve actuator designed for precise flow control in demanding HVAC systems. Operating on a 24V AC power supply, this 3-position actuator provides reliable spring-return functionality, ensuring the valve returns to its fail-safe position during a power loss. Engineered for use with Siemens VF... and VG... valves, it features a 20 mm stroke and an integrated positioner for superior accuracy in chilled water and hot water systems. Contractors value the 1000 N (225 lbf) stroke force, which handles high-pressure drops across the valve body without stalling. The die-cast aluminum housing ensures durability in mechanical rooms, while the manual override lever allows for system testing during commissioning. This unit is a direct replacement for legacy Skive actuators, offering a 30-second run time that balances response speed with system stability.
- Universal Compatibility: Direct-mounts to Siemens valves with 20 mm stroke requirements, simplifying field retrofits.
- Fail-Safe Protection: Mechanical spring-return ensures the HVAC control valve closes or opens securely during outages.
- Precise Control: The 3-position control signal allows for incremental positioning, optimizing heat exchange efficiency.
- Rugged Design: Built with electro-hydraulic internals for high-torque performance and long-term vibration resistance.
- Technician Friendly: Features a clear position indicator and a manual operating handle for streamlined troubleshooting.
Common Questions
Is the SKD82.51U compatible with older Landis & Staefa valve bodies?
Yes, this actuator maintains backward compatibility with specific older pressure-independent valves and standard mixing/diverting valves using the appropriate 20 mm stroke linkage.
How does the manual override function on this model?
The unit features a manual adjuster that allows you to position the valve manually. The actuator stays in this position until the power supply is restored or the manual release is engaged.
Can I install this actuator in any orientation?
While the Siemens SKD82.51U is versatile, it should be installed between the vertical and 90-degree horizontal positions. Avoid mounting upside down to prevent condensation or fluids from entering the electro-hydraulic pump assembly.
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.
Original: $769.15
-65%$769.15
$269.20Siemens Building Technology SKD82.51U Actuator
The Siemens Building Technology SKD82.51U Actuator is a heavy-duty electro-hydraulic valve actuator designed for precise flow control in demanding HVAC systems. Operating on a 24V AC power supply, this 3-position actuator provides reliable spring-return functionality, ensuring the valve returns to its fail-safe position during a power loss. Engineered for use with Siemens VF... and VG... valves, it features a 20 mm stroke and an integrated positioner for superior accuracy in chilled water and hot water systems. Contractors value the 1000 N (225 lbf) stroke force, which handles high-pressure drops across the valve body without stalling. The die-cast aluminum housing ensures durability in mechanical rooms, while the manual override lever allows for system testing during commissioning. This unit is a direct replacement for legacy Skive actuators, offering a 30-second run time that balances response speed with system stability.
- Universal Compatibility: Direct-mounts to Siemens valves with 20 mm stroke requirements, simplifying field retrofits.
- Fail-Safe Protection: Mechanical spring-return ensures the HVAC control valve closes or opens securely during outages.
- Precise Control: The 3-position control signal allows for incremental positioning, optimizing heat exchange efficiency.
- Rugged Design: Built with electro-hydraulic internals for high-torque performance and long-term vibration resistance.
- Technician Friendly: Features a clear position indicator and a manual operating handle for streamlined troubleshooting.
Common Questions
Is the SKD82.51U compatible with older Landis & Staefa valve bodies?
Yes, this actuator maintains backward compatibility with specific older pressure-independent valves and standard mixing/diverting valves using the appropriate 20 mm stroke linkage.
How does the manual override function on this model?
The unit features a manual adjuster that allows you to position the valve manually. The actuator stays in this position until the power supply is restored or the manual release is engaged.
Can I install this actuator in any orientation?
While the Siemens SKD82.51U is versatile, it should be installed between the vertical and 90-degree horizontal positions. Avoid mounting upside down to prevent condensation or fluids from entering the electro-hydraulic pump assembly.
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.
Product Information
Product Information
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Description
The Siemens Building Technology SKD82.51U Actuator is a heavy-duty electro-hydraulic valve actuator designed for precise flow control in demanding HVAC systems. Operating on a 24V AC power supply, this 3-position actuator provides reliable spring-return functionality, ensuring the valve returns to its fail-safe position during a power loss. Engineered for use with Siemens VF... and VG... valves, it features a 20 mm stroke and an integrated positioner for superior accuracy in chilled water and hot water systems. Contractors value the 1000 N (225 lbf) stroke force, which handles high-pressure drops across the valve body without stalling. The die-cast aluminum housing ensures durability in mechanical rooms, while the manual override lever allows for system testing during commissioning. This unit is a direct replacement for legacy Skive actuators, offering a 30-second run time that balances response speed with system stability.
- Universal Compatibility: Direct-mounts to Siemens valves with 20 mm stroke requirements, simplifying field retrofits.
- Fail-Safe Protection: Mechanical spring-return ensures the HVAC control valve closes or opens securely during outages.
- Precise Control: The 3-position control signal allows for incremental positioning, optimizing heat exchange efficiency.
- Rugged Design: Built with electro-hydraulic internals for high-torque performance and long-term vibration resistance.
- Technician Friendly: Features a clear position indicator and a manual operating handle for streamlined troubleshooting.
Common Questions
Is the SKD82.51U compatible with older Landis & Staefa valve bodies?
Yes, this actuator maintains backward compatibility with specific older pressure-independent valves and standard mixing/diverting valves using the appropriate 20 mm stroke linkage.
How does the manual override function on this model?
The unit features a manual adjuster that allows you to position the valve manually. The actuator stays in this position until the power supply is restored or the manual release is engaged.
Can I install this actuator in any orientation?
While the Siemens SKD82.51U is versatile, it should be installed between the vertical and 90-degree horizontal positions. Avoid mounting upside down to prevent condensation or fluids from entering the electro-hydraulic pump assembly.
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.
