Active Member
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[China]
Address: Wenchang Rd, Licang District, Qingdao, China
Contact name:Eric
Qingdao National Premium Oilwell Machinery Co.,Ltd |
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| EWS-446 Triplex Mud Pumps (API-7K) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EWS-446 Performance | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Item | Part number | Description | Qty | Item | Part number | Description | Qty |
| 1 | B-440343-Re | Valve Cover | 2 | 17 | B-440321-Re | Valve Guide, Suction | 1 |
| 2 | B-440323-Re | Plug, Valve Cover | 1 | 18 | GB/T 3452.1-Re | O- Ring φ150x5.3 | 1 |
| 3 | W-446.01.010-Re | Seal, Valve Cover | 1 | 19 | W0101 | Stud 3/4-10UNCX1 11/16 | 4 |
| 4 | W-446.01.004-Re | Spring, Valve | 2 | 20 | W-446.01.008-Re | Seal, Liner | 1 |
| 5 | W-446.01.03.00-Re | Valve Assy(API #4) | 2 | 21 | W-446307-Re | Liner | 1 |
| 6 | W-446.01.002-Re | Seat, Valve | 2 | 22 | B-440322-Re | Liner Clamp | 1 |
| 7 | GB/T 3452.1-Re | O- Ringφ100x3.55 | 2 | 23 | W-446.01.007-Re | Self-Lock Nut | 1 |
| 8 | D-440342-Re | Valve Cover Flange | 2 | 24 | Piston | 1 | |
| 9 | D-440003-Re | Fluid End Module | 1 | 25 | GB/T 3452.1 | O- Ring φ25x3.55 | 1 |
| 10 | W-446.01.013-Re | Stud 3/4-10UNCX6 | 2 | 26 | B-440308-Re | Piston Rod | 1 |
| 11 | NF2-3/4 | Nut 3/4-10UNC-2B | 2 | 27 | W0105 | Nut 9/16-12UNC | 2 |
| 12 | GB/T 3452.1 | O-Ring φ47.5x5.3 | 1 | 28 | GB/T93 | Washer 14 | 2 |
| 13 | W-446.01.011-Re | Stud 7/8-9UNCX4 1/2 | 12 | 29 | B-440227.01 | Washer Ring | 1 |
| 14 | NF2-7/8 | Nut 7/8-9UNC | 12 | 30 | W0104 | Stud 9/16-12UNCX4 | 2 |
| 15 | B-440309-Re | Plug, Cylinder Cover | 1 | 31 | W-446.01.006 | Nut 1 1/8-8UN | 4 |
| 16 | W-446.01.001-Re | Seal, Cylinder Cover | 1 | 32 | W-446.01.005 | Stud 1 1/8-8UNX7 1/4 | 4 |
| W-440/446 data | SPM | 320 | 270 | 220 | 170 | 120 | 70 | |
| Rated input power(Hp) | 440 | 380 | 320 | 260 | 200 | 200 | ||
| Liner(in) | Pressurepsi) | Displacement, GPM | ||||||
| 4-1/2 | 1710 | 1.239 | 397 | 335 | 273 | 211 | 149 | 87 |
| 4-1/4 | 1917 | 10105 | 354 | 299 | 243 | 188 | 133 | 77 |
| 4 | 2169 | 0.979 | 313 | 264 | 215 | 167 | 118 | 69 |
| 3-3/4 | 2468 | 0.861 | 275 | 232 | 189 | 146 | 103 | 60 |
| 3-1/2 | 2816 | 0.750 | 240 | 202 | 165 | 127 | 90 | 52 |
| 3 | 3327 | 0.551 | 204 | 149 | 121 | 94 | 66 | 39 |
| Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency. | ||||||||
| W-446 Data | SPM | 260 | 220 | 180 | 140 | 100 | 60 | |
| Rated input power(Hp) | 500 | 423 | 346 | 269 | 192 | 115 | ||
| Liner(in) | PRESSURE(MPa) | L/S | Displacement(L/S) | |||||
| 6 | 9.17 | 8.33 | 36.10 | 30.54 | 24.99 | 19.44 | 13.88 | 8.33 |
| 5 1/2 | 10.92 | 7.00 | 30.33 | 25.67 | 21.00 | 16.33 | 11.67 | 7.00 |
| 5 | 13.20 | 5.79 | 25.09 | 21.23 | 17.37 | 13.51 | 9.65 | 5.79 |
| 4 1/2 | 16.30 | 4.69 | 20.32 | 17.20 | 14.07 | 10.94 | 7.82 | 4.69 |
| 4 | 20.60 | 3.71 | 16.08 | 13.60 | 11.13 | 8.66 | 6.18 | 3.71 |
| 3 1/2 | 21.00 | 2.84 | 12.31 | 10.41 | 8.52 | 6.63 | 4.73 | 2.84 |
| Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency. | ||||||||
