Profile: Suman Exports specializes in manufacturing & exporting metal parts & accessories for electrical transformer industry such as H V & L V metal parts, level gauges, thermometers, connectors, stainless steel & mild steel arc welding studs, pressure relief device and non-ferrous forgings/castings. Pressure relief valve is a safety element of the transformer which prevents heavy damages of the tank in the case of sudden rise of the internal pressure. These valve have been designed to remove the excess pressure in a very short time as soon as the pressure in the tank rises above predetermined safe limit the valve operates and allow the pressure to drip instantaneously, it avoids damage to transformer body. Magnectic oil level gauge is used in distribution transformers with conservator.