F series mud pumps are used to circulate the drilling fluids,clean the bottom of the hole,carry the drill cuttings out of the hole,cool,clean and lubricate the drill bit, and support the well in drilling operation in oil and gas field, it is a kind of horizontal medium-speed triplex single acting piston pump. It is especially suited to high pressure jet drilling for increasing penetration rate,and it can also supply flowing drilling fluids for downhole motors to drive the downhole drilling machines and downhole tools.