Guangzhou Xingjin Fire Equipment Co.,Ltd. info@xingjin-fire.com 86--18011936582
Product Details
Place of Origin: Guangzhou,China
Brand Name: XINGJIN
Certification: GSG\TUV
Model Number: FHF-W-K
Payment & Shipping Terms
Minimum Order Quantity: 50 set system
Price: Pricing based on quantity
Packaging Details: Plywood outer box with bubble bag or paper
Delivery Time: 15-20 working days after payment or receipt of L/C
Payment Terms: T/T,L/C
Supply Ability: 30000set/month
Color: |
Silver |
Bladetype: |
Single Or Multi-blade |
Application: |
HVAC Ductwork Fire Protection |
Operation Method: |
Manual, Electric, Fully Automatic |
Operating Method: |
Manual\Automatic |
Maintenance: |
Minimal, Requires Annual Inspection |
Finish: |
Pre-painted Or Plain Galvanized |
Material: |
Galvanized Steel |
Weight: |
Varies By Size And Material |
Mini Order: |
20 Set |
Shape: |
Customized |
Power Supply: |
AC/DC |
Mountingposition: |
Vertical Or Horizontal |
Fireresistancerating: |
Up To 3 Hours |
Sizerange: |
100mm To 1200mm |
Color: |
Silver |
Bladetype: |
Single Or Multi-blade |
Application: |
HVAC Ductwork Fire Protection |
Operation Method: |
Manual, Electric, Fully Automatic |
Operating Method: |
Manual\Automatic |
Maintenance: |
Minimal, Requires Annual Inspection |
Finish: |
Pre-painted Or Plain Galvanized |
Material: |
Galvanized Steel |
Weight: |
Varies By Size And Material |
Mini Order: |
20 Set |
Shape: |
Customized |
Power Supply: |
AC/DC |
Mountingposition: |
Vertical Or Horizontal |
Fireresistancerating: |
Up To 3 Hours |
Sizerange: |
100mm To 1200mm |
The Combination Air Valve (ZF Series) is an electric modular air volume control device specifically designed for large space HVAC systems. It consists of a bottom frame, multiple independent valve bodies, an actuator, and a transmission mechanism. Manufactured from galvanized steel sheet, the blades can be constructed as double-layer riveted or single-layer reinforced structures. Controlled via a connecting rod mechanism for multi-blade联动, it is ideal for subway tunnels, large warehouses, petrochemical plants, large coal mines, and other applications requiring large cross-section duct air volume regulation.![]()
The Combination Air Valve is widely used in large space, large duct ventilation and air conditioning systems. Typical applications include:
| Facility Type | Specific Application |
|---|---|
| Subway Tunnels | Tunnel ventilation systems, smoke exhaust duct isolation and regulation |
| Large Warehouses | Logistics center ventilation system zone control |
| Petrochemical Plants | Chemical plant and tank area ventilation system air volume regulation |
| Large Coal Mines | Mine ventilation system duct control |
| Commercial Complexes | Large shopping malls, underground garage ventilation zone management |
| Public Buildings | Stadiums, exhibition centers, theater HVAC systems |
| Industrial Plants | Large-span workshop ventilation system air distribution |
| Power Facilities | Power plant and substation ventilation system duct control |
Core Value: Designed specifically for large cross-section ducts, the Combination Air Valve integrates multiple small air valves into one unit for unified control — saving installation space while ensuring precise and reliable air volume regulation.
Specifically for large-size ducts — single valve width can reach several meters
Composed of multiple independent valve bodies for flexible configuration
Solves the problem of no suitable ready-made valves for large ducts
Standard electric actuator (AC220V / DC24V optional)
Manual operation device included — manual control available during power outages
Meets both fire alarm integration and daily maintenance requirements
Blade options: 1.0mm+1.0mm double-layer riveted or 1.5-2.0mm single-layer reinforced
Zinc coating thickness 275g/m² (both sides) for excellent corrosion resistance
Stainless steel seals — leakage rate as low as 0.5%
Standard type leakage rate ≤ 1%
Tight shut-off type leakage rate ≤ 0.5%
Resistance coefficient < 0.5 when fully open — smooth airflow
Oil-impregnated self-lubricating brass bearings — no daily maintenance required
12×12mm galvanized square steel blade shaft — high strength, wear-resistant
16×4mm galvanized flat steel connecting rod — smooth transmission
Operating temperature: -20℃ to 45℃
Galvanized anti-corrosion treatment — suitable for humid, dusty environments
Stainless steel option available for higher corrosion resistance requirements![]()
| Parameter | Specification |
|---|---|
| Product Name | Combination Air Valve (ZF Series) |
| Drive Mode | Electric + Manual dual drive |
| Blade Movement | Opposed blade type / Multi-blade联动 |
| Effective Ventilation Area Ratio | > 80% |
| Leakage Rate | Standard ≤ 1% / Tight shut-off ≤ 0.5% |
| Resistance Coefficient (Full Open) | < 0.5 |
| Operating Temperature | -20℃ to 45℃ |
| Operating Voltage | AC 220V±15% 50HZ / DC24V (optional) |
| Valve Body Material | Galvanized steel sheet (220mm thickness, 275g/m² zinc coating) |
| Blade Material | 1.0mm+1.0mm double-layer riveted / 1.5-2.0mm single-layer |
| Blade Shaft | 12×12mm galvanized square steel |
| Connecting Rod | 16×4mm galvanized flat steel |
| Bearing | Oil-impregnated self-lubricating brass |
| Seal | Stainless steel |
| Customization | Size, material, and drive mode available on request |
✅ Designed for Large Ducts — solves the problem of no suitable ready-made valves for large cross-section ducts
✅ Dual Drive Mode — electric control with manual backup — safe and reliable
✅ Low Leakage Design — tight shut-off type leakage ≤ 0.5% — significant energy savings
✅ High-Quality Transmission Components — brass bearings + galvanized steel shaft — maintenance-free, long life
✅ Strict Quality Control — each valve undergoes operational and sealing tests before shipment
✅ Strong Customization Capability — size, material, and drive mode can all be customized
Why Choose Us:![]()