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440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
Specifications
Brand Name :
Hebei Pantu
Model Number :
W-440
Certification :
API 7K & ISO
Place of Origin :
China
MOQ :
1
Price :
10000USD~50000USD
Payment Terms :
L/C,T/T
Supply Ability :
20sets/month
Delivery Time :
45 days
Packaging Details :
3302mm*1671mm*1412mm(13ft*6.85ft*5.56ft)
Name :
Single Acting Oil Rig Mud Pump
Rated input Power: :
328 kW (440 HP)
stroke Per Minutes :
320 SPM
Stroke Length: :
6 inch
Gear Ratio: :
4.578:1
Valve :
API #4
Suction Inlet Flange :
6" 150 lb flange
Approx Weight :
9839 lb
Description

W-440 Triplex Single Acting Oil Rig Mud Pump

Product Overview

  1. The 440HP Triplex Mud Pump is a high-performance single-acting piston pump designed for oil and gas drilling operations. With a maximum speed of 320 SPM, it delivers reliable and efficient fluid circulation to support drilling stability and wellbore cleaning. Built with a robust triplex design, it ensures smooth operation, reduced pulsation, and extended service life.

  • 440 HP rated power for medium to deep drilling applications.

  • Triplex single-acting design for high efficiency and durability.

  • 320 strokes per minute (SPM) for stable and consistent mud circulation.

  • Compatible with Oilwell-style parts and expendables for easy maintenance.

  • Engineered for harsh drilling conditions, ensuring reliable performance.

Key Features

  1. Durable Construction – Fabricated with high-strength alloy steel for longer service life under harsh drilling conditions.
  2. High Pumping Efficiency – Optimized fluid end design ensures steady displacement and minimal pulsation.
  3. Flexible Power Options – Compatible with both electric motor and diesel engine drives.
  4. Easy Maintenance – Modular design allows quick replacement of fluid end parts, reducing downtime.
  5. Enhanced Lubrication System – Combination of splash and forced lubrication for extended bearing life.
  6. API & ISO Compliance – Designed and manufactured according to API Spec 7K and ISO 9001 standards.

Technical Specifications

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 in 4 1/2 4 1/4 4 3 3/4 3 1/2 3
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)
70

72

(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

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
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
MPa 17.2 19.3 21.7 24.8 28.4 34.5
● Performance data are calculated by 220 pm.


Applications

  1. Onshore and offshore oil drilling rigs
  2. Geothermal drilling projects
  3. Coalbed methane drilling
  4. Large-diameter water well drilling

Why Choose Our Mud Pump?

  1. Proven track record in Middle East, North America, Russia, and Africa oilfields.
  2. Global spare parts supply and after-sales service network.

Product photos

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

Product tags

www hydraulic pump engine

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hitachi ex200 hydraulic pump

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john deere hydraulic pump rebuild
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440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps

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Product Detail
Brand Name :
Hebei Pantu
Model Number :
W-440
Certification :
API 7K & ISO
Place of Origin :
China
MOQ :
1
Price :
10000USD~50000USD
Contact Supplier
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps
440HP Oil Rig Mud Pump 320 SPM Single Acting Oilwell Triplex Pumps

Hebei E-valves Petroleum Equipment Co., Ltd.

Verified Supplier
3 Years
hebei, cangzhou
Since 2018
Business Type :
Manufacturer, Trading Company
Main Products :
Drilling Mud Pump, Mud Pump Liner, Mud Pump Piston
Total Annual :
7000000-8000000
Employee Number :
80~100
Certification Level :
Verified Supplier
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