Siemens Building Technology SKD82.50U Actuator
The Siemens SKD82.50U Electro-Hydraulic Actuator is a precise, high-performance solution for 3-position (floating) control in hydronic and steam systems. Operating on 24Vac, this non-spring return (NSR) actuator delivers a reliable 250 lb (1150 N) nominal force with a 3/4-inch (20 mm) stroke, making it a drop-in component for Siemens 599 Series Flowrite valves. The die-cast aluminum housing ensures durability in demanding mechanical rooms, while the 120-second run time allows for stable modulation without hunting. As a veteran-grade electronic valve actuator, it features automatic stroke calibration and an integrated manual override for easy commissioning and field maintenance. High-efficiency electro-hydraulic technology provides superior positioning accuracy for 2-way and 3-way globe valves, handling media temperatures from -13°F to 300°F when properly equipped with accessories like stem heaters for sub-freezing fluids.
Key Benefits- Optimized Compatibility: Designed specifically for Siemens Flowrite 599 Series valves up to 6 inches, ensuring a seamless direct-coupled installation without specialized tools.
- Robust Construction: Features a rugged die-cast aluminum housing and yoke, rated for NEMA 1 indoor environments and high-duty cycles.
- Precision Control: Utilizes 3-position floating control with travel-dependent, overload-proof end-position switching to protect the motor and valve stem.
- Field Flexibility: Includes a manual override for emergency positioning and visual/electronic stroke indicators for immediate status verification.
- Maintenance-Free Design: The closed-loop hydraulic system is factory-sealed, eliminating the need for periodic lubrication or internal adjustment.
Is the SKD82.50U a fail-safe actuator?
No, this model is a non-spring return (NSR) unit. In the event of a power loss, the actuator will maintain its last position. For fail-safe requirements, technicians typically specify the SKD82.51U series.
What is the difference between floating and proportional control for this unit?
The SKD82.50U uses 3-position (floating) control, which requires two separate 24Vac signals to drive the motor open or closed. Proportional models (like the SKD62U) utilize a 0-10Vdc or 4-20mA signal for more complex modulation.
Can this actuator be used on valves from other manufacturers?
While optimized for Siemens 599 Series, the 20 mm stroke and universal yoke design may fit other standard valves, though an adapter or specific mounting hardware is often required to ensure proper stem alignment.
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: $624.42
-65%$624.42
$218.55Siemens Building Technology SKD82.50U Actuator
The Siemens SKD82.50U Electro-Hydraulic Actuator is a precise, high-performance solution for 3-position (floating) control in hydronic and steam systems. Operating on 24Vac, this non-spring return (NSR) actuator delivers a reliable 250 lb (1150 N) nominal force with a 3/4-inch (20 mm) stroke, making it a drop-in component for Siemens 599 Series Flowrite valves. The die-cast aluminum housing ensures durability in demanding mechanical rooms, while the 120-second run time allows for stable modulation without hunting. As a veteran-grade electronic valve actuator, it features automatic stroke calibration and an integrated manual override for easy commissioning and field maintenance. High-efficiency electro-hydraulic technology provides superior positioning accuracy for 2-way and 3-way globe valves, handling media temperatures from -13°F to 300°F when properly equipped with accessories like stem heaters for sub-freezing fluids.
Key Benefits- Optimized Compatibility: Designed specifically for Siemens Flowrite 599 Series valves up to 6 inches, ensuring a seamless direct-coupled installation without specialized tools.
- Robust Construction: Features a rugged die-cast aluminum housing and yoke, rated for NEMA 1 indoor environments and high-duty cycles.
- Precision Control: Utilizes 3-position floating control with travel-dependent, overload-proof end-position switching to protect the motor and valve stem.
- Field Flexibility: Includes a manual override for emergency positioning and visual/electronic stroke indicators for immediate status verification.
- Maintenance-Free Design: The closed-loop hydraulic system is factory-sealed, eliminating the need for periodic lubrication or internal adjustment.
Is the SKD82.50U a fail-safe actuator?
No, this model is a non-spring return (NSR) unit. In the event of a power loss, the actuator will maintain its last position. For fail-safe requirements, technicians typically specify the SKD82.51U series.
What is the difference between floating and proportional control for this unit?
The SKD82.50U uses 3-position (floating) control, which requires two separate 24Vac signals to drive the motor open or closed. Proportional models (like the SKD62U) utilize a 0-10Vdc or 4-20mA signal for more complex modulation.
Can this actuator be used on valves from other manufacturers?
While optimized for Siemens 599 Series, the 20 mm stroke and universal yoke design may fit other standard valves, though an adapter or specific mounting hardware is often required to ensure proper stem alignment.
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 SKD82.50U Electro-Hydraulic Actuator is a precise, high-performance solution for 3-position (floating) control in hydronic and steam systems. Operating on 24Vac, this non-spring return (NSR) actuator delivers a reliable 250 lb (1150 N) nominal force with a 3/4-inch (20 mm) stroke, making it a drop-in component for Siemens 599 Series Flowrite valves. The die-cast aluminum housing ensures durability in demanding mechanical rooms, while the 120-second run time allows for stable modulation without hunting. As a veteran-grade electronic valve actuator, it features automatic stroke calibration and an integrated manual override for easy commissioning and field maintenance. High-efficiency electro-hydraulic technology provides superior positioning accuracy for 2-way and 3-way globe valves, handling media temperatures from -13°F to 300°F when properly equipped with accessories like stem heaters for sub-freezing fluids.
Key Benefits- Optimized Compatibility: Designed specifically for Siemens Flowrite 599 Series valves up to 6 inches, ensuring a seamless direct-coupled installation without specialized tools.
- Robust Construction: Features a rugged die-cast aluminum housing and yoke, rated for NEMA 1 indoor environments and high-duty cycles.
- Precision Control: Utilizes 3-position floating control with travel-dependent, overload-proof end-position switching to protect the motor and valve stem.
- Field Flexibility: Includes a manual override for emergency positioning and visual/electronic stroke indicators for immediate status verification.
- Maintenance-Free Design: The closed-loop hydraulic system is factory-sealed, eliminating the need for periodic lubrication or internal adjustment.
Is the SKD82.50U a fail-safe actuator?
No, this model is a non-spring return (NSR) unit. In the event of a power loss, the actuator will maintain its last position. For fail-safe requirements, technicians typically specify the SKD82.51U series.
What is the difference between floating and proportional control for this unit?
The SKD82.50U uses 3-position (floating) control, which requires two separate 24Vac signals to drive the motor open or closed. Proportional models (like the SKD62U) utilize a 0-10Vdc or 4-20mA signal for more complex modulation.
Can this actuator be used on valves from other manufacturers?
While optimized for Siemens 599 Series, the 20 mm stroke and universal yoke design may fit other standard valves, though an adapter or specific mounting hardware is often required to ensure proper stem alignment.
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.
