T4 series backpressure tubine is double-decked arrangement engine of the surplus heat utilization and the combined heat and power to product.While satisfies process steam,it may also obtain the inexpensive electric power.Thus energy can be used reasonable;the economic efficiency is obvious.It is used widely in enterprises,e.g.refine sugar,food chemical industry,paper making,spinning,printing and dyeing and so on.Its rotor uses a velovity-compounded stage impeller and two pressure stage.The diameter of nozzle pitch is 1050mm.Its speed regulating system is the whole hydraulic control system,multi-valve regulations,forced lubri cation.Its speed of main shaft is 3000r/min.It drags generator to generate electricity. /