PRODUCTS

EWS-400 Mud Pump

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.
 
 
 
 

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