W-446(500HP) Drilling Mud Pump Triple Cylinder Single Action Pump

Product Overview

1. The overall structure design of the machine is compact, small in size, light in weight, and the gear pair is an integral herringbone gear transmission, with high transmission torque and stable operation. The crankshaft is a balanced crankshaft with a forged welded structure, which is lightweight, vibration free, and operates smoothly.
   The W-446 three cylinder single acting pump can be widely used in various operations in oil fields. The cylinder liner specification 41/2 "-6" adopts a piston structure, which is suitable for workover operations and shallow well drilling.

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 368kw (500HP)
Maximum 260 strokes/minute (260SPM)
Continuous operation with 220 strokes per minute (220SPM)
Stroke 152.4mm (6 ″)
Gear ratio 4.578:1
Maximum working pressure 21Mpa
Valve chamber API 4#
Maximum cylinder liner diameter 6 ″
Maximum cylinder liner pump pressure 9.17Mpa
Suction nozzle 8 "flange
3 ″ (900 #) flange for discharge pipe outlet
Pinion shaft diameter 95.25 mm (3.75 ″)
Key 22.174x15.9mm
External dimensions of pump: (excluding base) 2479X1219X1103 mm
Weight 4513 kg

Certificates:

Meets API 7K, Q1 standard.

Brands:

We can supply BOMCO/RONGSHENG/HH/QINGZHOU brands also.

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

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