Manufacturer: National Oilwell (Now part of NOV / National Oilwell Varco)
Model: FD-1600
Type: Triplex, single-acting reciprocating mud pump
Class: High-horsepower drilling (approx. 1600 HP input capability)
Engine Power Rating: Designed for ~1,600 HP input
Stroke Length: 12 in (standard for high-HP pumps)
Crankcase: Heavy-duty forged steel
Bearings: Tapered or cylindrical roller bearings
Lubrication: Pressure lubrication, high oil volume
(Actual performance depends on liner selection & operating speed)
| Liner Size (in) | Approx Flow @ 120 SPM (GPM) | Approx Max Pressure (psi) |
|---|---|---|
| 7.0 in | ~960 GPM | ~3,600 psi |
| 7.25 in | ~995 GPM | ~3,400 psi |
| 7.5 in | ~1,030 GPM | ~3,200 psi |
| 8.0 in | ~1,100 GPM | ~2,800 psi |
(National Oilwell typically provides specific curves based on liner & rod size.)
Liner Material: Wear and corrosion-resistant steel alloy
Valve Type: Oilfield-style 3-web or 4-web valves
Pistons / Packing: Replaceable pistons and chevron or packing cup seals
Typical Drive:
Diesel engine (CAT 3512 / 3516 / Cummins KTA50)
Electric motor (AC or DC) with gearbox
Skid or trailer mounted: Yes
Coupling: Flexible or direct with torque converter / gearbox
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