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HW-446mud pump are 100% replaceable to EWS-446 mud pump of American brand.

HW-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.

HW446 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