The capacity of this steam boiler is 500 kg/hr, which means it can produce up to 500 kg of steam per hour. The IBR steam boiler is designed and constructed in compliance with Indian Boiler Regulations, which specify safety requirements, design standards, and testing procedures for boilers. he heat is transferred to the water in the shell through a series of tubes, which are immersed in the water. The water is converted into steam, which is then passed through a superheater to increase its temperature. IBR regulations ensure that the boiler is safe to operate, and that it meets certain performance standards in terms of efficiency, capacity, and emissions.