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{"title":"Square Ceiling Diffuser Air Grille with 4-Way Uniform Air Supply High-Strength","imgUrl":"https:\/\/img.chinax.com\/nimg\/a4\/8e\/430824c05f1c845afaab6822b263-200x200-1\/square_ceiling_diffuser_air_grille_with_4_way_uniform_air_supply_high_strength_aluminum_and_removable_core_design.jpg","attrs":{"Model Number":"FHF-W\/FHF-W-K\/FHF-WS-FK\/FHF-WSDC -K","Payment Terms":"T\/T,L\/C","Material":"ABS plastic, aluminum alloy, custom wood","Function":"Smoke Exhaust\/ventilation"}}
{"title":"Ball Jet Diffuser HVAC Diffuser with 30 Meters Throw Distance and \u00b130\u00b0","imgUrl":"https:\/\/img.chinax.com\/nimg\/c9\/a9\/ebb69115c899adc248f5889cbcd9-200x200-1\/ball_jet_diffuser_hvac_diffuser_with_30_meters_throw_distance_and_c2_b130_c2_b0_directional_adjustment_in_high_strength_aluminum.jpg","attrs":{"Model Number":"FHF-W\/FHF-W-K\/FHF-WS-FK\/FHF-WSDC -K","Price":"Pricing based on quantity","Installation":"Wall\/Ceilling Mounted","Supply Ability":"30000set\/month"}}
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{"title":"Circular Swirl Diffuser for HVAC Systems with High Induction Ratio and Large","imgUrl":"https:\/\/img.chinax.com\/nimg\/ac\/e7\/b3c6471ac6d93b64fd0f29d46676-200x200-1\/circular_swirl_diffuser_for_hvac_systems_with_high_induction_ratio_and_large_temperature_differential_for_draft_free_comfort.jpg","attrs":{"Model Number":"FHF-W\/FHF-W-K\/FHF-WS-FK\/FHF-WSDC -K","Payment Terms":"T\/T,L\/C","Material":"ABS plastic, aluminum alloy, custom wood","Function":"Smoke Exhaust\/ventilation"}}
{"title":"30\u00b0 Angled Airflow Linear Slot Diffuser with High-Strength Aluminum Alloy and","imgUrl":"https:\/\/img.chinax.com\/nimg\/e1\/1e\/4159327315f5808895417122f169-200x200-1\/30_c2_b0_angled_airflow_linear_slot_diffuser_with_high_strength_aluminum_alloy_and_multiple_core_configurations.jpg","attrs":{"Model Number":"FHF-W\/FHF-W-K\/FHF-WS-FK\/FHF-WSDC -K","Payment Terms":"T\/T,L\/C","Material":"ABS plastic, aluminum alloy, custom wood","Installation":"Wall\/Ceilling Mounted"}}
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The FHF-W-K Smoke & Fire Damper is a critical safety component for ventilation and air conditioning systems in buildings requiring fire protection. It operates as a normally open valve that automatically closes during a fire, preventing the spread of flames and smoke through ducts. Compliant with international safety standards, it integrates temperature sensing, manual control, and signal feedback for reliable performance in emergencies.
Key Features
Automatic Closure at High Temperatures: Activated by a 70°C / 150°C fusible link, the valve closes automatically under blade gravity or spring force, ensuring rapid fire containment.
Manual Control & Reset: Allows manual override for testing or emergencies. The valve can be manually reopened after activation.
Durable Construction: Galvanized steel (standard) or stainless steel (for corrosive environments such as kitchens or cleanrooms). The robust design withstands high-pressure airflow and extreme temperatures.
Signal Feedback: Equipped with an optional valve position signal output to integrate with building fire alarm systems, enabling real-time monitoring.
Versatile Installation: Suitable for horizontal or vertical mounting in ducts, walls, or floors. Complies with GB50045 (China's High-Rise Civil Building Fire Safety Code) and holds CCC certification.
Technical Specifications
Control Modes
Temperature-sensor auto-close (W) + Manual control (S)
Valve State
Normally open (closes upon fire detection)
Leakage Rate
≤0.5% (low leakage type available)
Flange Connection
Standard 30 mm single-sided flange for easy duct integration
Safety Certified: Tested under 280°C for 30+ minutes (meets GA211-1999 fire damper standards).
Low Maintenance: Corrosion-resistant materials and a simple reset mechanism.
Customizable: Available in rectangular or circular designs (e.g., PFHF-WSDc-Y-φ1000 for circular ducts).
Order Information
Model: FHF-W-K (e.g., FHF-W-K-630×500 for a 630 mm × 500 mm rectangular valve).
Contact: Guangzhou Xingjin Fire Equipment Co., Ltd. for OEM/ODM requests.
Ensure compliance and safety with the FHF-W-K — your trusted partner in fire protection.
Why Choose Us
2-year quality guarantee.
Xingjin operates under a high-efficiency management system.
Advanced equipment and professional engineers ensure all products are highly satisfactory.
We provide 8×6 hours of technical support and service.
After-Sale Service
Our efficient sales and after-sales team resolves all client questions in a timely manner.
We provide 8×6 hours of technical support and service.
FAQ
Q1: Are you a manufacturer or a trading company?
A1: We are a manufacturer.
Q2: Are OEM products available?
A2: Yes, we welcome your own design and drawings.
Q3: Where is your factory? Can I visit it?
A3: Our factory is located in Shilou, Panyu, Guangzhou, Guangdong, China. Of course — we always welcome and look forward to your visit.
Q4: How can I get to your factory?
A4: Thanks to convenient local transportation, you can take a taxi or come by subway. If you come by subway, take Line 4 and get off at Shiqi Station. Then walk out of the station and take Bus No. 126, getting off at Yuexi Station.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2010
Total Annual:
600000-1200000
Employee Number:
100~300
Ecer Certification：
Verified Supplier
About Us:
Guangzhou Xingjin Fire Equipment Co., Ltd. is a professional enterprise dedicated to the research, development and production of HFC-227ea (FM200), Novec1230, CO2 and inert gas products. For many years, the company has been committed to improving product quality, enriching pro... About Us:
Guangzhou Xingjin Fire Equipment Co., Ltd. is a professional enterprise dedicated to the research, development and production of HFC-227ea (FM200), Novec1230, CO2 and inert gas products. For many years, the company has been committed to improving product quality, enriching pro...
