ELW-440/446 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

Fluid End Expendables & Accessories

Liner: hy-chrome liner, zirconia liner, ceramic liner,chrome-plated liner, hardned liner

Piston: nitrile rubber piston, supreme piston, polyurethanepiston, urethane bonded piston, green duo piston, blue lightning piston, whitelightning piston

Valve & Seat: three-web valve seat, four-web valve seat, full openvalve seat, Bomco type valve seat, NOV valve seat, Mission valve seat,Southwest valve seat

Pulsation Dampener: KB45,KB75,PD45,PD55,K10,K20

Module: “I” shaped module, “L” shaped module, suction module,discharge module

Spare parts:  Upper and lower Valve Guide, Liner Gasket,Piston Rod, Rod Clamp, Valve Cover, Valve Cover Seal, Cylinder head, CylinderHead Gasket, Cylinder Head Flange/Threaded Ring, Alignment Ring, Wear Plate,Cylinder Head Plug, Liner Flange, Liner Lock, Mud Baffle

Power End Parts

Pony Rod/Extension Rod, Stuffing Box,Stuffing box Seal Parts, Crosshead, Crosshead Guide, Crosshead Pin, CrossheadBearing, Connection Rod, Bull Gears, Pinion Shaft, Pinion Shaft Bearing/BearingCarrier/Oil Seal Gasket/, Crank Shaft, Crank Shaft Bearing/Bearing Carrier,Eccentric Bearing, Inner/outer Race Retainer, Gauges, Oil Lubrication Pump, MudPump Transmission Belt Pulley/V-belt