Fail-Safe Auto-Reset Linear Actuator for FCU

SA905-S

Fail-Safe Power-off Auto-Reset Linear Actuator

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Fail-Safe Auto Closure via Supercapacitor

Ultra-Quiet Motorized Control (<30dB)

High Close-Off Pressure Rating (Leak-Proof)

Quick-Install M30x1.5 Threaded Connection

Ready for Modbus/BACnet BMS Integration

Superior Performance with High Cost-Ratio

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Product Description

The ultra-quiet SA905-S is an advanced linear actuator engineered for FCU zone valves. Utilizing supercapacitor technology, it guarantees rapid fail-safe closure under high close-off pressure, eliminating leakage risks and ensuring system integrity in commercial and residential HVAC applications.

Key Functions

Fail-Safe

Supercapacitor-driven return mechanism guarantees reliable valve closure upon any power interruption.
Tight Seal

The robust design features high close-off pressure rating, preventing water leakage and extending equipment life.
Quiet Run

Optimized motorized system operates with minimal acoustic interference, ideal for noise-sensitive areas.

Fast Setup

Compact structure and industry-standard M30x1.5 connection simplify the installation process significantly.
Precise Flow

Available in both ON/OFF and Modulating (0-10V) versions to deliver exact control over water flow and temperature.
Low Power

Optimized power consumption maintains high thrust force while ensuring energy-efficient long-term operation.

Product Selector

Model No.	Nominal Force	Voltage	Stroke	Control Signa	Manual
SA905-T(220V)	80-130N	220VAC	4.5mm	Automatic hydronic balancing valve actuator	download
SA905-T(24V)	80-130N	24VAC	4.5mm	Automatic hydronic balancing valve actuator	download
SAS905-V(220V)	160N	220VAC	6mm	Modulating 0-10V	download
SAS905-V(24V)	160N	24VAC	6mm	Modulating 0-10V	download
SAS905-S	80-130N	220VAC	4.5mm	ON/OFF	download

Product Parameters

Power supply: SA905-S:100-240VAC

SA905-S(24V):18-30VAC

* Thrust force: 100~140N

* IP rating: IP54

* Wring: Without auxi aryswitch2x05mm²

* Wire length: 0.9M

* Vave connection: M30x1.5mm

* Operating environment: -5~60°C, 0t~90%RH

* Housing material: PA66+15%GF,PC

* Max stroke: 4.5mm

Product Application Scenarios

The SA905-S is an essential solution for hydronic control systems across diverse settings. It is optimally suited for installation in commercial buildings, hotels, hospitals, educational institutions, and high-end residential projects that require whisper-quiet performance, enhanced safety features, and robust integration capabilities.

Hospital

Office-Building

Shopping-Mall

Global Partnership & OEM/ODM Support

As a trusted leader in FCU Actuators and HVAC control solutions, we empower our global network of distributors, installers, and supply chain partners with robust support, ensuring project success and minimizing operational complexity.

Rapid OEM/ODM Customization

We offer full OEM/ODM flexibility with accelerated delivery timelines. Leveraging our agile R&D and manufacturing capabilities, we swiftly adapt our actuators (including branding, coloring, and precise technical specifications) to meet diverse market demands and ensure fast portfolio integration.
Dedicated 24/7 Expert Technical Guidance

Access our deep industry expertise for comprehensive technical support. We provide detailed guidance on actuator installation, wiring, and FCU system commissioning, backed by 24/7 critical support to ensure rapid troubleshooting and maximum long-term system stability.
Global Quality Assurance & Warranty

We guarantee exceptional product reliability and longevity through our robust Global Warranty program. Supported by a localized, quick-response mechanism, this commitment effectively minimizes your Total Cost of Ownership (TCO) and eliminates after-sales burden, safeguarding your reputation worldwide.