Marine Explosion Proof Axial Flow Fan - Marine Axial Flow Fan - Hi-sea

Marine Explosion Proof Axial Flow Fan

Marine Explosion Proof Axial Flow Fan





A marine explosion proof axial flow fan is a type of fan used in marine and offshore environments that require explosion-proof equipment to prevent the ignition of hazardous gases, vapors, or dust.

An axial flow fan is a type of fan that creates airflow by rotating a set of blades around a central shaft. These fans are designed to move large volumes of air at low pressures and are commonly used for ventilation and cooling applications.

The explosion-proof design of the fan ensures that it will not ignite any flammable or explosive materials that may be present in the surrounding environment. This is achieved through the use of materials and construction methods that prevent sparks or arcs from occurring, such as using non-sparking materials and ensuring all electrical connections are properly sealed.

Marine explosion-proof axial flow fans are used in a variety of applications, such as in cargo holds, engine rooms, and other areas of ships and offshore oil rigs. They are also used in other hazardous environments, such as chemical plants and refineries. These fans are an important safety feature in these environments, as they help to prevent the buildup of explosive gases or vapors that could lead to catastrophic accidents.


There are five structural types: type Ⅰ(deck type), type Ⅱ(tube type), type Ⅲ(separate cabins type), type Ⅳ(olive type) and type Ⅴ(wind upward type). The construction is non-sparking.

TypeⅠexplosion-proof fan has an explosion-proof motor installed on the top of the frame and a wire mesh guard with 2 inch, made of stainless steel, surrounding the frame. The fan is vertically fixed on the deck. It can be delivered for air supply or air extraction.
Type Ⅱ explosion-proof fan has no hood, built-in type anti-corrosive motor id mounted on the casting by vane. It can be installed vertically or horizontally, and also be installed on the deck. It can be delivered for air supply or air extraction.
According to the customer’s special requirement, the fan can be made into Ⅲ, Ⅳ,Ⅴ type structure, the fan and the motor with a driving device, a stuffing box and flexible coupling. It is used primarily for exhaust of dangerous compartment, the ventilator fan can also be type Ⅳ and Ⅴ, in which the air not pass the motor thus ensuring the vessel safety.
The explosion-proof ventilator is manufactured in the structure under which the impeller turns clockwise view from the motor side impeller can be reversible.

Configuration selection:

Part name

Texture of material

Advantages / disadvantages


Carbon steel

After heat treatment, higher hardness and better wear resistance can be obtained. The hardness in the annealed state is very moderate, and it also has good machinability. Raw materials are very common, easy to obtain, and the production cost is relatively low


Aluminium alloy

Low density, high strength, good conductivity, good corrosion resistance and easy processing

Electric machinery

Finished marine motor with low noise, low vibration and high protection grade

Junction box


It has good plasticity and welding performance, good forming ability, and has a certain strength. It is suitable for engineering structures. It has good practical performance, relatively cheap price and high cost performance

Stationary blade support foot


Ordinary carbon structural steel has simple production process, good process performance (such as welding performance, pressure processing performance, etc.), necessary toughness, good plasticity, low price and easy to supply in large quantities. It is usually used after hot rolling

Casing flange


Good toughness and plasticity, certain elongation, good welding performance and hot workability


Marine Explosion Proof Axial Flow Fan

The specific differences are as follows:

Product of other low-quality suppliers

Product of our factory

Other low quality suppliers


Our factory


Incorrect model selection and differences

The air volume and pressure cannot meet the customer's requirements

The air volume and pressure cannot meet the customer's requirements

The air volume and pressure meet the requirements, and the operation is stable and safe

Use inferior materials and turn out substandard goods

The casing is easy to rust

Adopt marine standard carbon steel

Impeller not durable

It is easy to be corroded by seawater in a short time, resulting in air holes in the impeller and reduced air volume

Adopt Marine Standard 104 aluminum alloy

More corrosion resistance and longer service life

Choose ordinary motor as marine motor

The insulation grade cannot meet the requirements

Strictly select marine motor

The shell has higher protection grade, certain explosion-proof property, more moisture and corrosion resistance, and longer service life

The explosion-proof grade is not selected as required

The motor fails to meet the explosion-proof requirements and is prone to danger

Choose explosion-proof grade in strict accordance with application requirements

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IACS Certificate: DNVGL, LR, KR, ABS, NK, BV, CE, CCS

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