Manufacturer: National Oilwell (NOV)
Model: 12P-160
Pump Type: Triplex, single-acting reciprocating mud pump
Class: Heavy drilling service (~1600 HP class)
Rated Input Power: ~1,600 HP (depends on installation)
Stroke Length: 12 in
Maximum Pump Speed: ~120 SPM (Strokes Per Minute)
Frame Design: 12P power end frame for heavy loads and continuous service
| Liner Size (in) | Approx Flow @ 120 SPM (GPM) | Approx Max Pressure (psi) |
|---|---|---|
| 7.0 | ~960–1020 | ~3,200–3,600 |
| 6¾ | ~900–960 | ~3,400–3,800 |
| 6½ | ~840–900 | ~3,600–4,000 |
| 6¼ | ~780–840 | ~3,900–4,300 |
| 6.0 | ~720–780 | ~4,100–4,500 |
Flow and pressure vary with rod diameter, mud weight, pump speed, and driving engine/gearbox.
Crankcase: Heavy duty cast/forged design
Crankshaft: Large diameter with generous journals
Bearings: Tapered roller / heavy roller bearings
Lubrication: Pressure-fed forced lubrication system
Oil Capacity: Large sump for thermal stability
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