1. Product Overview

2. Two Core Main Assemblies

2.1 Power End (Transmission Assembly)

1. Pump frame: Welded thick steel plate with stress relief treatment, reinforced rib structure for high rigidity, anti-vibration under long-term alternating load.

2. Transmission system: Integral forged alloy steel crankshaft, carburized hardening herringbone gears, stable low-noise transmission.

3. Lubrication system: Matched with Gear Oil Pump, adopts combined forced+splash dual lubrication, fully lubricates crankshaft bearings, crossheads, crosshead guides to avoid metal seizure.

4. Moving parts: Crosshead, crosshead guide, extension rod, nuts, shaft seals and other standard interchangeable spare parts.

2.2 Fluid End (Hydraulic Pressure Assembly)

• Main components: Cylinder flange, cylinder liner flange, cylinder cage, cylinder liner, piston assembly, suction/discharge valve assembly, discharge manifold, right-angle elbow, plug board, gate valve, pressure gauge, pulsation dampener, shear relief valve;

• Replaceable wearing parts: Sealing rings, valve rubber, piston rubber, guide tube;

• Supporting maintenance tool: Hydraulic valve puller for quick disassembly of stuck valve cores.

3. Core Structural Advantages

1. Long-stroke low-speed design

   Longer liner stroke allows operation under lower SPM, improves mud suction performance, reduces abrasion frequency of fluid end consumables, extends service life of liners, pistons and valves.

2. Dual composite lubrication

   Independent gear oil forced lubrication system ensures full oil film on all friction pairs, greatly prolongs power end service life compared with single splash lubrication.

3. High-pressure anti-fatigue fluid end

   All manifold, flange and elbow fittings adopt integral alloy steel forging, thick-wall pressure-bearing structure, effectively resist erosion of sand-containing drilling fluid; matched pulsation dampener stabilizes pipeline pressure fluctuation.

4. Universal standard spare parts

   All consumables follow unified international dimensions, cross-brand interchangeable, convenient for on-site stock and quick replacement.

5. Multiple drive modes

   Can be driven by AC/DC motor, diesel engine, belt or gearbox, adaptable to land rig, offshore platform and mobile directional drilling equipment.

4. Working Principle

1. Suction stroke: Piston retreats, negative pressure opens suction valve, drilling mud enters cylinder cavity;

2. Discharge stroke: Piston advances, mud pressure closes suction valve, opens discharge valve; high-pressure mud flows into discharge manifold and circulates to wellhead.

   Built-in shear relief valve provides overpressure protection to prevent pipeline burst caused by blockage.

5. Main Application Fields

1. Onshore & offshore oil/gas conventional drilling, deep well and sour gas well workover;

2. Horizontal directional crossing, municipal pipeline trenchless construction;

3. Geological exploration, water well drilling, foundation grouting engineering;

4. Coalbed methane, geothermal well construction supporting circulation system.

6. Product Value