HRSB Mud Pump｜W446

Mud Pump｜W446

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Brand HRSB

Certification CU-TR/EAC API

Lead Time 60days

Guarantee Period 12months

Source of Supply Hebei

Payment Method T/T L/C

Product Information

DESCRIPTION：

W-440/446(500HP) pumps can be widely used in all types of operations in an oilfield. The liner sizes range from 6" to 3 1/2", which are suitable to adopt piston structure for good maintenance and shallow drilling. The pumps with liner sizes of 3 1/4" ~ 2” adopt piston structure and such pumps can be used in conditions with high pressure. The pump is compact in structure and has a small size therefore it is light. The gear pairs are in an integral herringbone structure and the transmission torque is large.

Frame

The machine frames are welded with steel plates and processed to eliminate stress after welding, therefore. There are reinforced plates at the seats of the crankshaft and main bearing so that they have good stiffness and strength.

Crankshaft

The crankshaft is in a balanced structure with welded forged parts. It is light and can operate smoothly without vibration. Both sides of the crankshaft are equipped with double aligning spherical roller bearings so as to ensure the stability in operation and to improve its bearing capacity.

Pinion Shaft

It is made of forge alloy steel, herringbone gears (integral) is machined on the shaft and it adopts a medium-hard tooth surface. There is shaft extension at both ends, where bell pulleys or chain wheels may be installed.

Crosshead

The crosshead is made by one-piece cast with nodular cast iron, so the crosshead has good resistance to abrasion. The structure of the top and bottom guidance is adopted for crossheads in order to regulate the concentricity by adding gaskets at the bottom guidance. The extension rods are connected to the crossheads by flange bolts with pinholes, so as to ensure the concentricity of the crosshead and the extension rods. The packing adopts a double-layer sealing structure, which realizes good seal performance.

Fluid Cylinder

The cylinder is made of forge alloy steel and adopts a straight-way structure. The hydraulic cylinder has a small size and higher volume efficiency. The cylinder surface is processed by chemical plating in order to increase the resistance to corrosion. The three hydraulic cylinders of a pump are interchangeable.

Liner

W440/446(500HP) pumps have the same liner O.D. The liners are mounted tightly on the end face of the hydraulic cylinder by using squareness capping and bolts. Sealing between the liner and the hydraulic cylinder is realized by rectangular rubber gaskets.

Lubrication System

The pump adopts forced lubrication. In the oil tank, there is a gear oil pump, which transmits pressure oil to crossheads guidance as well as the bearings, so as to realize forced lubrication and cooling.

Spraying System

It adopts a power-driven spraying system.

RONG SHENG MUD PUMP SERIES MODELS:

F Series	P Series	3NB Series	W Series	PAH Series	TEE Series	Mud Pump-Engine Packages
RS-F500	8-P-80	RS-3NB1300	W-440	PAH-350	TEE-300
RS-F800	9-P-100	RS-3NB1600	W-446
RS-F800FT	10-P-130		W-447
RS-QF800	12-P-160
RS-F1000	RS-P1600HL
RS-F1300
RS-F1300L
RS-F1300FT
RS-F1600
RS-QF1600
RS-F1600HL
RS-QF1600HL
RS-F1600FTL