Boilers And Pressure Parts We manufacturing a wide variety of steam boiler, with different firing options. Wide Range : 100 kg/hr to 15 ton/hr. Working pressure : UP to 45 kg/cm2. Description Oil/Gas Fired, 3 Pass, Water Tube Coil Type Steam Boiler. The SU series is a reverse flue, three pass, water tube design steam boiler. Itgives quick steam output within 4 minutes from cold start. The combustion chamber and the smoke passages are accurately designed, which ensures that combustion occurs perfectly. It does not require any qualified boiler attendant. It is ideal for small and medium sized plants, where average steam pressure (10 Bar) is required. Units can also be designed for higher pressures. Salient Features of the SU - Oil/Gas Fired, 3 Pass, Water Tube Coil Type Steam Boilers are Reverse flue design Single coil for easy maintenance Larger pipe diameters Improved efficiency Instant steam generation