Sichuan Wuzhou Petroleum Equipment Technology Co.,Ltd. is a professional manufacturer of solid control equipments used for oilfield such as WZF-500 series mud pumps, sand pumps, water pumps, mud centrifuges and their fittings in China. Our products has passed API Certificate and ISO9001:2000 Certificate.The details is introduced as follows: WZF-500 series Mud Pumps It is a horizontal piston pump with three cylinders single action. It cycles drilling fluid, washes well bottom, carries rock chip, cools and lubricates drill bit as well as reinforces wall of a well in the course of drilling of deep well and ultra-deep well, if it is used together with high pressure spray drill bit, it is beneficial to break rock and raise drilling speed. At the same time, it can use drilling fluid as motive power to drive drilling rig of well bottom. This kind of pump has characteristics of advanced structure, small volume, reliable, good exchangeability and easy maintenance. Performance parameter Stroke length: 190.5mm Rated speed: 165 strokes / minute Output power: 500hp / 370kW Rated speed of driving shaft: 707 revolutions / minute Cylinder diameter: 100 ~ 170mm Gear drive ratio: 4.2857 Theoretical displacement and working pressure when machinery efficiency is 0.9 and volume is 1 Cylinder diameter (mm) 100 110 120 130 140 150 160 170 Theoretical displacement (L/S) 12.3 14.9 17.7 20.8 24.2 27.7 31.6 35.6 Outlet pressure Mpa 26.8 22.2 18.6 15.8 13.6 11.9 10.4 9.2 kgf/cm2 273 226 190 161 139 121 106 94