Eweco EWS446 Triplex Piston Pump Liner Valve and Seat

Email: manager(at)oilwellmachinery(dot)com

EWS446

ELW440/446 Pump can be widely used in all kinds of worksin oil field. When the cylinder liner specification is 6”-3 1/2”, pistonstructure is recommended and it is suitable for Oil-Well Repair andshallow-well drilling, etc. When the cylinder liner specification is 3 1/4”-2”,axial piston structure is recommended and it is suitable for high-pressurework.

ELW446 Mud Pump TECHNICAL SPECIFICATION

Rated input power 328KW (440HP)
Rated Stroke 320 Stroke/Minute(320SPM)
Stroke 152.4mm（6”）
Gear Ratio 4.578 :1
Max. operation pressure 35Mpa
Valve chamber Valve-Over API 4#
Max. liner dia. 6”
Max. liner mud pressure(160 stroke/minute)16.9Mpa
Dia. of suction manifold, 6”(150#) Flange
Dia. of discharge manifold 3”(900#) Flange

Dia. pinion shaft 95.25 mm(3.75”)

Key 22.174x15.9mm
Dimension:(No included base),2479X1219X1103 mm
Weight 4463 kg

Liner

Supreme liner(bi-metal liner) for EWS446 triplex piston pump has zise from3-1/2" to 6". With alloy steel outer shell and over 27% chrome inner sleeve.

The bore hardness is60 to 65 RC while the hull has high tensile strength of more than 90000psi. Allhy-chrome liner are manufactured with an “HP” lip in case of inner sleeveslippage.

Theservice life of this liner is more than 800 hours under normal drillingconditions. Eastland’s hy-chrome liners are made for superior performance undertough corrosive and abrasive conditions.

Valve & Seat

ESW446 piston pump uses API4# full open valve & seat with forged alloy struction,deep curburized wear

surface and greater fluid flow and easier maintenance and seat pulling.

Piston

Eastland offers replacement rubber piston,rubber bonded piston,urethane replacement piston and urethane bonded piston which allows to work under different drilling condition.

Size from 3" to 7-1/2".

Email: manager(at)oilwellmachinery(dot)com