Head of a pressure vessel and boiler parts a. the use of medium frequency induction heating modes on local heating pipe and tube bending mechanical transmission, power and maximum achievable 120KW, heating pipes of various size, quick heating, power can be adjusted, start the performance good, stable performance, small footprint, easy operation and maintenance. •Head of a pressure vessel of the cover, is one of the main pressure vessel bearing parts. • Head of quality is directly related to the pressure vessel safe and reliable operation for a long time.