Gas Freeing Fans

Gas Freeing of Cargo Holds is a Critical Safety Requirement for Tank Entry.

Cargo Tank entry is not premitted unless the Oxygen Content is 21% or more and the hydrocarbon vapor content is less than 1% of the Lower Flammable Level.

If the previous Cargo contains Hydrogen Sulphide (H2S) or other toxic contaminants which could evolve toxic gases (e.g. benzene, toluene, mercaptans etc) the tank should be checked for such gases.

There are two types of gas freeing fan: deep penetration high volume fan and low penetration high volume fan.

The most efficient way of gas freeing is to use a Deep Penetration High Volume fan arranged to blow air into the tank. This arrangement offers the fastest Gas Freeing process. (refer to the Gas Freeing Arrangement Drawings)

All the Dasic Gas Freeing Fans are of the Deep Penetration High Volume Design to give the operator the most efficient gas freeing process.

The Gas Freeing Range

Jetfan 125

Jetfan 125 Water Driven

The Jetfan 125 is the most efficient deep penetration gas freeing fan on the market. Its robust design has been proven with in excess of 8000 units operating in the most arduous conditions.

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Jetfan 85

Jetfan 85 Air Driven

The Jetfan 85 is the air driven option of the Jetfan 125 Its robust design has been proven with in excess of 8000 units operating in the most arduous conditions from VLCC’s to continuous operation on FPSO’s.

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Jetfan 70

Jetfan 70 Water Driven

Our fan design technology has enabled us to build the small but robust Jetfan 70 Mark III. The Jetfan 70 offers the very best features for efficient and effective gas freeing operations.

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Jetfan 65

Jetfan 65 Air Driven

The Jetfan 65 offers excellent ventilating capabilities for small to mid tonnage vessels. The rigid but lightweight all stainless steel construction ensures that the Jetfan 65 is totally portable and capable of being used in virtually any location.

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Jetfan 50

Jetfan 50 Water Driven

The Water Driven Jetfan 50 offers excellent ventilating capabilities for small to mid tonnage vessels. The rigid but lightweight all stainless steel construction ensures that the Jetfan 50 is totally portable and capable of being used in virtually any location.

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