The plug is an important part for the fluid end of mud pump in oil drilling. Its front part is equipped with cylinder head (valve cover) sealing ring for the sealing and pressure maintaining of a hydraulic cylinder. A top-grade suitable plug is adopted to improve the cylinder head plug loading condition and also increase the bearing capacity and service life.
Cylinder head plug is installed in the hydraulic cylinder.Cylinder head plug consists of a handle and a plug body , which are welded together. The blank of plug body is 45 steel, which is quenched as per the standard of HB217-255.
Plugs made by LONGWELL Company cover a full range of pumps from BAOSHI, LANSHI and QINGSHI factories. All of them adopt high quality alloy carbon steel made by domestic steel plants. They are finished by means of high temperature forging, heat treatment and CNC machining so as to achieve guaranteed geometric size, sealing performance, increased durability and wear resistance.