The Fire Extinguisher is manually discharged / fired and emptied.
The extinguisher is then dismantled completely; cylinder is de-stressed.
The cylinder then is made to undergo a Hydro Static Pressure Test at 30kgf cm sq for 2 minutes to check for leaks and the burst capacity.
New extinguishing agent (powder, gas, water or foam) is filled in the cylinder through a vacuum based process that fills the cylinder with exact quantity of extinguishing agent.
The cylinder then is made to undergo a Hydro Static Pressure Test at 30kgf cm sq for 2 minutes to check for leaks and the burst capacity.
New Discharge fitment mechanism including all new rubber seals, O rings, and hose pipe (EPDM with 50 kg burst capacity) are attached.
Fire extinguisher is charged (pressurized) with 99.99% pure nitrogen mixed with helium.
The Fire Extinguisher is then made to go through Leak tests. The first is an inverted beaker test in water. The extinguishers also undergo a Mass Spectro Meter Helium Leak Detection Test which is the most advanced leak detection technology available currently in the world.
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