Mud Pump Liners
Mud pump liners are the main expendable parts of mud pump fluid end. They are combined with outer shell and inner sleeve compactly.
We can supply both ceramic and bi-metal liners for Emsco, Bomco,Gardner Denver, National, Oilwell,, Ideco, and other pumps.
Bi-metal liner, someone also calls hy-chrome liner, super premium liner, high chrome sleeve liner and supreme liner.
Service Life: more than 800 hours
forged by high quality carbon steel 45#;
tensile strength is σb>610MPa
yield strength is σs>450MPa
elongation is §>17%
hardness is HB180-200
centrifugal casting by high carbon and high chromium cast iron
Chromium content: 26~28%
high surface finish, wear resistant, corrosion resistant, longer service life.
annealing hardness is HRC≤40, quenching hardness is HRC62-65
Chemical composition of outer hull:
Chemical composition of inner sleeve:
The zirconium ceramic liners can not only adapted to some tough environment such as deep oil reservoir, hard stratum and severe earthiness, but also can be used for offshore oil and natural gas exploitation as well. So ceramic liners are the first choice to upgrade high pressure mud pump liners.
Service Life: over 4000 hours longer service life
Outer hull: forged by high quality carbon steel 45#;
Inner sleeve: zirconia
The value of fracture toughness is K10~15MPa（10 times than traditional ceramic）
Bending strength is σ600~800MPa
weber coefficient is m18
elasticity modulus is E200Gpa
HP design with shoulder-on-hull design to prevent sleeve slippage;
Reduced liner and piston wear;
Lower thermal load on the liner wash system;
better performance in wear resistant, corrosion resistant, high hardness.
There are mainly two kinds of ceramic materials for inner sleeve:
Compound ceramic material by tetragonal zirconia and aluminium oxide;
Better performance in wear resistance, corrosion resistance, impact resistance, high temperature resistance...
pure zirconia ceramic
high strength, high toughness, high wear resistance, excellent thermal insulation...
Liner sizes are availabe from 4-1/2” to 7-1/2” for all popular mud pumps.