The oil tank series products manufactured by Baoji YidongPetroleum Machinery Co.，Ltd. (hereinafter referred to as" Yidong") mainly consist of diesel tank,gasoline tank andpetroleum tank,all of which can be designed in the shape of cubold,cyllnder or hay tank. The main components and parts of tankslnclude storage tank, centrlfugal pump,filter,floating ball llquld-level meter,exploslon-proof llquid level switch,explosion-proofelectrical control panel, atainless steel ball valve and manifoldsystem. Discharge outlet is set at the bottom of the tank while dust-proof respiration valve is at the top and swash plate spacer isinstalled inside.The series equipment is a guarantee for constantpower supply in such fleld environment as drilling site.