"Hydraulic Pressure Testing done in Coimbatore" We are undertaking Hydraulic Pressure Testing for Portable and Trolley Fire Extinguishers of ABC, Water and Foam types. We do testing of cylinders upto 1.5 times of their working pressure, normally upto 25 kg/cm2. Also we have tie with outside agency to do HPT for CO2 Fire Extinguishers. Every Five years old cylinders will be automatically pressure tested and only the passed out cylinders will be refilled. However, as per customer request the period can be reduced. Refilling of Fire Extinguishers in Coimbatore Hydraulic Pressure Testing HPT in Coimbatore. Refilling of Fire Extinguishers in Udumalpet Refilling of Fire Extinguishers in Pollachi.i