SKD62U Siemens Actuator
$846.69
Flowrite Electro-Hydraulic Actuator, 24Vac, Proportional, SR, 3/4″ Stroke
5 in stock
Siemens SKD62U Electro-Hydraulic Actuator – 24 VAC, 0-10 VDC / 4-20 mA, Spring Return
Overview
The Siemens SKD62U is a Flowrite 599 Series electro-hydraulic actuator designed for precision control of valves in HVAC and fluid handling systems. Operating on 24 VAC, it supports both 0-10 VDC and 4-20 mA control signals. With a built-in spring return fail-safe, robust die-cast aluminum housing, and automatic stroke calibration, this actuator ensures reliable long-term performance in demanding applications.
Specifications
| Specification | Details |
|---|---|
| Brand / Model | Siemens SKD62U, Flowrite 599 Series |
| Actuator Type | Electro-hydraulic, spring return (fail-safe) |
| Control Signal | 0-10 VDC or 4-20 mA |
| Power Supply | 24 VAC, 50/60 Hz |
| Stroke | 3⁄4-inch (20 mm) |
| Thrust / Force (NC) | ~225 lb-in (≈1000 N) |
| Thrust / Force (NO) | ~258 lb-in (≈1150 N) |
| Run Time (Powered) | ~30 seconds full stroke |
| Run Time (Spring Return) | ~15 seconds |
| Operating Temperature | 5°F to 122°F (-15°C to +50°C) |
| Media Temperature | -13°F to 300°F (-25°C to +150°C) with accessories |
| Weight | ~8.5 lbs (≈3.85 kg) |
| Housing | Die-cast aluminum, manual override, stroke indicator |
| Certifications | UL, CE, EMC, Low-Voltage Compliance |
| Enclosure Rating | NEMA 1 (indoor use) |
Features & Benefits
Fail-safe spring return ensures valve reverts to safe position on power loss
Accepts both voltage and current control signals for maximum compatibility
Automatic stroke calibration for simple, accurate commissioning
Manual override for setup and emergency adjustment
Heavy-duty construction for long service life in HVAC environments
Applications
Zone and control valves in HVAC hydronic and steam systems
Chilled water and hot water distribution
Radiant heating and fan coil units
Systems requiring precise modulating control with spring return safety
Installation & Maintenance Notes
Requires 24 VAC power supply with adequate VA rating
Stroke calibration should be performed at installation for accurate control
Optional accessories available: auxiliary switches, stem heaters, weather shields
Allow clearance for mounting and servicing
Verify signal input settings (voltage vs current) before commissioning
Warranty & Compliance
Backed by Siemens standard product warranty
Meets UL and CE safety and performance standards
Related Products
Other Siemens Flowrite SKD series actuators (non-spring return and higher force models)
Compatible Siemens valve bodies for HVAC applications
Accessories including auxiliary switches and stem heaters
| Weight | 11 lbs |
|---|---|
| Dimensions | 14 × 9 × 8 in |
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