W-440 Well Service Pump is a continuous duty 6" stroke high performance triplex. This pump is an Ellis Williams Style (EWS) design. The W-440HP is rated to 5,000 PSI, with 3-1/2" Piston/Liners, with a maximum output of 5.3 BPM. Our W-446 is a 3K pump and can accommodate from 3" liners/pistons to 6" liners/pistons. W-446 can turn out 15 BPM with 6" liners at 1027PSI. 
 

Specifications
Rated Horsepower:	440 HP
Rated Pump Speed:	320 SPM
Stroke Length:	6"
Suction Inlet:	150 flange 6"
Discharge Outlet:	900 flange 3"
Gear Ratio:	4.578:1
Valve Pot:	API #4
Dimensions	98" x 48" x 44"
Approximate Weight:	9,840 lbs

 

EWS-440 Performance

Liner Size, inches 4-1/2 4-1/4 4 3-3/4 3-1/2 3 Rated Pressure, psi 1,710 1,917 2,169 2,468 2,816 3,327 Pump Speed SPM Input Power HP Displacement, GPM 320 440 397 354 313 275 240 204 270 380 335 299 264 232 202 149 220 320 273 243 215 189 165 121 170 260 211 188 167 146 127 94 120 200 149 133 118 103 90 66  70 200 87 77 69 60 52 39 Volume/Stroke, gallons 1.239 1.011 0.979 0.861 0.750 0.551

Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency.