VT-446
TRIPLEX MUD PUMP
440 HP DRILLING & WELL SERVICE DUTYPUMP GENERAL DATA
- MAX. INPUT POWER
- 440 HP (328 kW)
- RATED PUMP SPEED
- 320 SPM
- GEAR RATIO
- 4.578 : 1
- STROKE LENGTH
- 6" (152.4 mm)
- APPROX. WEIGHT
- 9,840 LBS (4,463 kg)
- VALVE POT
- API #4
- SUCTION / DISCHARGE
- 6" Flange / 3" ANSI 900 Flange
POWER END FEATURES
- Extraordinary weight-to-horsepower ratio with high strength forged/welded frame
- Integral 4.578:1 internal herringbone gear pair for smooth transmission
- 100% roller bearing design with fail-safe internal lubrication system
- Inherently balanced forged crankshaft for minimal vibration operation
- Cast nodular iron crossheads with adjustable upper and lower guides
FLUID END FEATURES
- High-strength forged alloy steel fluid cylinders with anti-corrosion chemical plating
- Straight-through cylinder design for high volumetric efficiency
- API #4 valve pots with interchangeable suction and discharge valves/springs
- Piston rod dimensions fully compliant with API 7K (SA-2)
- Full liner range available from 3-1/2" up to 6" bore sizes
VT-446 PERFORMANCE RATINGS
| LINER SIZE | DISPLACEMENT PER REV. | RATED PRESSURE | DISPLACEMENT @ 120 SPM | DISPLACEMENT @ 170 SPM | DISPLACEMENT @ 220 SPM | DISPLACEMENT @ 270 SPM | DISPLACEMENT @ 300 SPM | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| in. | mm | GAL./REV. | LTR/REV. | PSI | BAR | GPM | LPM | GPM | LPM | GPM | LPM | GPM | LPM | GPM | LPM |
| 6.0 | 152.4 | 2.203 | 8.34 | 1,027 | 70.8 | 264 | 1,000 | 375 | 1,418 | 485 | 1,835 | 595 | 2,252 | 661 | 2,668 |
| 5.5 | 139.7 | 1.851 | 7.01 | 1,222 | 84.3 | 222 | 841 | 315 | 1,191 | 407 | 1,542 | 500 | 1,892 | 555 | 2,241 |
| 5.0 | 127.0 | 1.530 | 5.79 | 1,479 | 102.0 | 184 | 695 | 260 | 985 | 337 | 1,274 | 413 | 1,564 | 459 | 1,853 |
| 4.5 | 114.3 | 1.239 | 4.69 | 1,710 | 117.9 | 149 | 563 | 211 | 798 | 273 | 1,032 | 335 | 1,266 | 372 | 1,501 |
| 4.0 | 101.6 | 0.979 | 3.71 | 2,169 | 149.5 | 117 | 445 | 166 | 630 | 215 | 815 | 264 | 1,001 | 294 | 1,186 |
| 3.5 | 88.9 | 0.750 | 2.84 | 2,816 | 194.2 | 90 | 341 | 128 | 483 | 165 | 625 | 203 | 767 | 225 | 908 |
| INPUT SPEED (PINION) RPM | 549 | 778 | 1,007 | 1,236 | 1,465 | ||||||||||
* RATINGS ARE BASED ON 100% VOLUMETRIC EFFICIENCY AND 90% MECHANICAL EFFICIENCY.
** PINION SHAFT SPEED CALCULATED USING 4.578:1 INTERNAL GEAR REDUCTION RATIO.
