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Reducing flames with stainless steel

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WHERE flammable or combustible materials are stored or handled, there can be a severe risk of an explosion or fire if handling equipment such as forklift trucks are not flameproofed.

Flameproofing of materials handling equipment is the science of reducing the risk of an explosion or fire by means of specialised principles and technologies.

Three components are needed in order to generate an explosion or fire: a flammable or combustible material (liquid, gas or dust); Oxygen; and an ignition source (sparks, hot surface or static discharges.

Sources of ignition include flames and sparks from exhaust systems, arc and sparks from electrical equipment, hot surfaces and static build up.

Chess Flameproof, a division of Chess Engineering , specialises in the conversion of materials handling equipment for use in hazardous areas. Both diesel and battery electric powered forklifts can be flameproofed. (Note spark ignition engines {LPG and petrol} are not permitted in any hazardous areas.)

To overcome the possible sources of ignition, a number of protection techniques are used:

Stainless steel water cooled exhaust manifold. Extreme temperatures of the gases leaving the cylinder head of the engine can easily cause the exhaust manifold to climb in temperature to a level where it may possibly ignite surrounding hazardous area atmosphere. To overcome this problem a stainless steel water cooled exhaust manifold is fitted.

Stainless steel exhaust conditioner. An exhaust conditioner is a water tank that channels the hot exhaust gases and particles through a labyrinth thus cooling and filtering. Depending upon the area classification, a final flame trap element may be fitted as a secondary measure. Inside the exhaust conditioner is a very corrosive environment because of the exhaust gases, water and elevated temperatures.

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