Hybrid Design for Medium Pressure & Airflow

The Mixed-Flow Explosion-Proof Fan combines the benefits of axial and centrifugal designs, offering an optimal balance of moderate pressure and airflow for hazardous ventilation systems. It overcomes the limitations of pure axial fans (low pressure) and pure centrifugal units (bulky size), making it ideal for industrial exhaust, laboratory fume removal, and long duct runs in explosive atmospheres. Engineered to comply with international explosion-proof standards, the Mixed-Flow Explosion-Proof Fan ensures both safety and performance where regulated ventilation is mandatory.

Secure Construction with Isolated Ignition Sources

This fan features a cylindrical housing that integrates a certified explosion-proof motor enclosed in a separate sealed compartment. A long shaft connects the motor to the mixed-flow impeller located in the airflow path, effectively isolating potential electrical ignition sources from explosive gases. The impeller is precision-cast or welded from approved aluminum or stainless steel and dynamically balanced to G6.3 (upgradable to G2.5) for smooth operation. All housing joints are machined as flameproof flanges or fitted with certified seals to maintain explosion integrity. The external bearing housing allows safe maintenance from a non-hazardous zone, reducing downtime and risk.

Delivering Reliable & Quiet Ventilation

Designed to handle higher static pressure than axial fans, the Mixed-Flow Explosion-Proof Fan maintains stable performance across demanding ducted systems. Its robust steel-plate casing ensures smooth internal airflow, while advanced noise reduction keeps sound levels between 70–80 dB(A) at 1 m distance. In pharmaceutical or chemical processing plants where solvents like ethanol or acetone are used, this fan is often installed mid-duct or at the exhaust endpoint to overcome system resistance (up to 500 Pa total pressure) and safely extract hazardous vapors. With reliable temperature control, anti-static features, and certified explosion containment, it provides continuous protection for personnel and facilities in classified areas.

Key Technical Parameters

Parameter	Specification
Airflow Range	4000–18000 m³/h
Total Pressure	250–500 Pa
Static Pressure	180–420 Pa
Total Efficiency	80–85%
Motor Power	1.5–15 kW
Protection Rating	IP55
Insulation Class	F (upgradable for corrosive environments)
Explosion Proof Standards	ATEX / IECEx / NEC
Impeller Balance Grade	G6.3 (G2.5 optional)
Vibration Velocity	≤2.8 mm/s
Noise Level (1 m)	70–80 dB(A)
Typical Applications	Pharmaceutical plants, chemical exhaust, long duct ventilation