The DPQ-K1600 is a high-performance triplex mud pump designed for oil and gas drilling operations, especially in demanding deep-well environments. It circulates high-pressure drilling mud to cool the bit, remove cuttings, and maintain wellbore stability.
- Standard: API 7K compliant
- Rated Power: 1600 HP (upgradable to 2000 HP in the same footprint)
Key Specifications
| Parameter | Value/Details |
|---|---|
| Type | Triplex, single-acting reciprocating piston mud pump |
| Rated Power | 1600 HP (1193 kW); upgradable to 2000 HP |
| Stroke Length | 12 inches (305 mm) |
| Max Strokes per Minute | 120 SPM |
| Max Discharge Pressure | Up to 7,500 PSI (517 bar) with smaller liners |
| Liner Sizes | Interchangeable: 4″, 5″, 5.5″, 6″, 6.75″, 7″ |
| Max Flow Rate | Varies by liner & SPM; e.g., ~730 GPM at 6″ liner & 120 SPM |
| Fluid End | Forged alloy steel; I-type or L-type; valve-over-valve design |
| Power End | Forged steel crankshaft; splash + forced lubrication with gear oil pump |
| Weight (Approx.) | 12,000–15,000 lbs (5,440–6,804 kg) |
| Dimensions (L×W×H) | ~150″ × 40″ × 70″ (3.8 m × 1 m × 1.8 m) |
| Drive | Belt pulley or direct motor; cantilever design for easy fluid end removal |
Flow Calculation Formula:
Flow (GPM) = (Liner ID² × Stroke × SPM × 0.000324) × Efficiency (~85%)
Example: 6″ liner →(36 × 12 × 120 × 0.000324) ≈ 1,670 GPM theoreticalNeed others mud pump details? Please click
Performance Highlights
- Pressure vs. Volume: Smaller liners = higher pressure; larger liners = higher flow
- Efficiency: Lower SPM operation extends liner/piston life by 20–30%
- Mud Compatibility: Handles water-, oil-, or synthetic-based muds up to 100 cP
Standard Accessories
- KB-75 type pulsation dampener (N₂ charged)
- Discharge/suction manifolds
- Shear relief valve
- Liner wash system (centrifugal pump)
- Pressure gauges & safety guards
Materials & Durability
| Component | Material/Feature |
|---|---|
| Power End | High-tensile forged alloy steel |
| Fluid End | Chrome-plated or ceramic liners (500–1,000 hr life) |
| Pistons/Valves | API-interchangeable (NOV, GD, BOMCO compatible) |
Maintenance & Service
- Lubrication: Splash + forced (external gear oil pump); SAE 30–50
- Service Time: Fluid end removal < 4 hours; valve/piston swap < 2 hours
- Common Wear Parts: Liners, pistons, valve inserts, packing
- Testing: Hydrostatic test per API 7K recommended annually
Applications
- Onshore/offshore rigs (up to 20,000 ft wells)
- Exploration, production, workover
- High-solids mud circulation
| Spare parts list for drilling pump DPQ-K1600 | Part Number |
|---|---|
| Hydraulic block assembly 81015-05.01A.00 | 81015-05.01A.00 |
| Cover flange 81015-05.02 | 81015-05.02 |
| Cylinder flange 81015-05.17 | 81015-05.17 |
| Cylinder pressure cover 81015-05.18.00 | 81015-05.18.00 |
| Cylinder cover 81015-05.03 | 81015-05.03 |
| Stud M39×3×563 81001-05.35B | 81015-05.35B |
| Nut M39 81015-05.35B | 81015-05.35B |
| Air sac (membrane) PQ-60 | PQ-60 |
| Vibration-proof manometer YTN-100 M20×1.5 417.130.03.00 | 417.130.03.00 |
| Insert plate assembly 81015-05A.04.00 | 81015-05A.04.00 |
| Front cover O-ring 81015-05.08 | 81015-05.08 |
| Valve cover O-ring 81015-05.13 | 81015-05.13 |
| Cylinder liner O-ring (cylinder) 81015-05.15 | 81015-05.15 |
| Piston O-ring 81015-05.20 | 81015-05.20 |
| Valve assembly API7 with urethane element | 81015-05.12 |
| Valve rod guide (lower) | SD 81015-05A.05.00 |
| Valve rod guide (upper) 81015-05.12 | 81015-05.12 |
| Piston rod API SA-4 81015-05.19A | 81015-05.19A |
| Lower guide bushing SWU000017N109H | SWU000017N109H |
| Lower valve holder SWU000017N108D | SWU000017N108D |
| Retainer of lower guide SWU000017N108K | SWU000017N108K |
| Cover seal SWU000017N108L | SWU000017N108L |
| Feeding pump CXN65-250MPS | CXN65-250MPS |
| Liner d-180 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Liner d-170 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Liner d-160 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Liner d-150 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Liner d-140 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Liner d-130 mm 81015-05.23A.00 | 81015-05.23A.00 |
| Piston d-180 mm 81015-05.28.00 | 81015-05.28.00 |
| Piston d-170 mm 81015-05.28.00 | 81015-05.28.00 |
| Piston d-160 mm 81015-05.28.00 | 81015-05.28.00 |
| Piston d-150 mm 81015-05.28.00 | 81015-05.28.00 |
| Piston d-140 mm 81015-05.28.00 | 81015-05.28.00 |
| Piston d-130 mm 81015-05.28.00 | 81015-05.28.00 |
