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HVAC المثبط المحرك
A compact rotary drive that clamps directly to a damper shaft and converts an electrical control signal into repeatable blade position or safety closure.
- Universal Direct Shaft Clamp
- Adjustable Mechanical End Stops
- Manual Gear Release
- On-Off Floating or Proportional Control
مقدمة المنتج
The HVAC damper actuator combines a reversible electric motor, reduction gear train, position electronics and universal shaft clamp in one sealed housing. It mounts directly on a round or square damper shaft, with an anti-rotation bracket preventing the body from turning. Adjustable stops limit the travel angle, while a manual release allows the blade position to be set during installation. Non-spring and spring-return versions support ordinary modulation, shut-off and selected safety-position duties.
الخصائص الرئيسية
Mechanical end stops define the usable rotation range and protect the damper linkage from overtravel.
Manual override disengages the gear train for blade positioning during installation or service.
Control variants cover two-position, three-point floating and proportional analog operation with optional feedback.
مخاوف المنتج للعملاء
Actuator reliability depends on correct torque, shaft geometry, travel direction, supply voltage and a fail-position strategy matched to the controlled damper.
The actuator reaches full torque but the damper still leaks because the blade bank needs more closing force.Required torque is calculated from blade area, differential pressure, seal drag and linkage efficiency before selecting the drive.
A loose shaft clamp slips after repeated reversals.A correctly sized self-centering clamp and anti-rotation bracket secure both the shaft and actuator housing.
The control signal opens the damper when the sequence expects closure.Selectable rotation direction and clearly set end stops align actuator travel with the blade position indication.
Loss of power leaves an isolation damper in an uncontrolled intermediate position.A spring-return model drives the shaft to the specified safety endpoint without relying on the controller.
تطبيقات نموذجية
Volume control dampersOutside and return-air dampersVAV terminal bladesShut-off and isolation dampersFire and smoke damper drive systems
المعلمات الفنية
Typical physical construction ranges for a direct-coupled rotary HVAC damper actuator are listed below.
| المواد الأساسية | Glass-fiber-reinforced engineering polymer housing with steel gear train and universal steel shaft clamp |
|---|---|
| سمك اللوحة | 2.5–4.0 mm molded actuator housing wall |
| العرض الفعال | 100–180 mm typical actuator body width |
| الحد الأقصى الطول | Up to 250 mm overall actuator body length including shaft clamp |
| الصلب يواجه سمك | 1.5–3.0 mm zinc-plated shaft clamp and anti-rotation bracket |
| الكثافة الأساسية | Approximately 1200–1400 kg/m³ for reinforced polymer housing material |
| الموصلية الحرارية | Approximately 0.20–0.35 W/(m·K) for the reinforced polymer enclosure |
| إنهاء السطح | Orange or black impact-resistant molded housing with zinc-plated clamp hardware |
| نوع المشترك | Direct universal shaft clamp with anti-rotation bracket, adjustable stops and protected cable entry |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
24 V or mains-voltage supplyNon-spring or spring-return mechanismOn-off, floating, 0–10 V or network controlAuxiliary switches and position feedback
Planning a HVAC Damper Actuator specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
