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440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps

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Address: Xinhua District, Cangzhou City, Hebei Province, China

Contact name:Peter

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440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps

Country/Region	china
City & Province	cangzhou hebei

Product Details

W-440 Triplex Single Acting Oil Rig Mud Pump

W-440 Oil Rig Mud Pump Specification :

Rated input Power: 328 kW(440 HP)Max. Stroke Per Minute: 320 SPMContinuous operating stroke: 220 SPMStroke Length: 152.4 mm (6")
Gear Ratio4.578:1
Max. Working Pressure: 34.5 MPa (5000 psi)Valve: API#4
Piston Rod End : API #SA2
Max.Liner Size : 114.3 mm (4 1/2")
Suction Inlet Flange: 152.4 mm (6") 150 lb flange
Discharge Outlet Flange: 52.4 mm (2 1/16") flange,34.5 MPa (5000 psi)Overall Dimension (LxW×H):2478×1219×1103 mm3(8.13×4×3.62 ft3)Approx Weight: 4463 kg (9839 lb)

Parameters of W-440 Oil Rig Mud Pump

Liner Size

4 1/2

4 1/4

3 3/4

3 1/2

Discharge Pressure

MPa

11.8

13.2

14.9

17.0

19.5

26.6

psi

1711

1914

2160

2465

2828

3857

Stroke per Minute SPM

Power kW(HP)

Displacement L/s(GPM)

320

328

(440)

25.0

(396.3)

22.3

(353.5)

19.8

(313.8)

17.4

(275.8)

15.1

(239.3)

11.1

(175.9)

270

277

(371)

21.1

(334.4)

18.8

(298.0)

16.7

(264.7)

14.7

(233.0)

12.8

(202.9)

9.4

(149.0)

220

226

(303)

17.2

(272.6)

15.3

(242.5)

13.6

(215.6)

11.9

(188.6)

10.4

(164.8)

7.6

(120.5)

170

174

(234)

13.3

(210.8)

11.9

(188.6)

10.5

(166.4)

9.2

(145.8)

8.0

(126.8)

5.9

(93.5)

120

123

(165)

9.4

(149.0)

8.4

(133.1)

7.4

(117.3)

6.5

(103.0)

5.7

(90.3)

4.2

(66.6)

(96)

5.5

(87.2)

4.9

(77.7)

4.3

(68.2)

3.8

(60.2)

3.3

(52.3)

2.4

(38.0)

1.03

(1.38)

0.078

(1.236)

0.070

(1.110)

0.062

(0.983)

0.054

(0.856)

0.047

(0.745)

0.035

(0.555)

● Performance data are calculated by 90% mechanical efficiency and 100% volumetric efficiency.

Liner Size	in	4 1/2	4 1/4	4	3 3/4	3 1/2	3
Displacement	gal/rev	1.239	1.102	0.98	0.857	0.749	0.548
Displacement	L/s	17.2	15.3	13.6	11.9	10.4	7.6
Discharge Pressure	psi	2494	2798.5	3146.5	3596	4118	5000
Discharge Pressure	MPa	17.2	19.3	21.7	24.8	28.4	34.5
● Performance data are calculated		by 220 pm.

W-440 Oil Rig Mud Pump Details

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 to ensure stability in operation and to improve its bearing capacity.

Pinion Shaft

It is made of forge alloy steel, herringbone gears (integral) are machined

on the shaft and it adopts a medium hard tooth surface. There is a shaft

extension at both ends, where bell pulleys or chain wheels may be installed.

Crosshead

The crosshead is made of the one-piece cast with nodular cast iron, so the

crosshead has good abrasion resistance. The structure of top and bottom

guidance is adopted for crossheads to regulate the concentricity by

adding a gasket at the bottom guidance. The extension rods are connected

to the crossheads by flange bolts with pin holes, 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 ordtoase the corrosion resistance. 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, to realize forced lubrication and cooling.

Spraying System

It adopts a power-driven spraying system

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440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps

Product Details

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