Cementing Units | DS Type - Triplex Plunger Pumps

DS Type - Triplex Plunger Pumps
Destination:

The triplex pump are single-acting pumps with "V" toothed cylindrical gear, bilt especialy for operating conditions of cementing units.

The pumps are designed to run on reduced revolutions providing proper filling of pump cylinders and more than 0,9 volumetric efficiency on natural suction without supercharging.



Contents:

Fluid end Power end Lubrication Plunger lubrication Frame Equipments

Constructive characteristics:

The hydraulic part of pump may be equipped, as desired, with the following range of plungers Ø85, Ø90, Ø100, Ø115 and Ø125 mm, according with the maximum working pressure of cementing unit.
In hydraulic part of pump mechanical energy is converted to hydraulic energy at the required operating pressure.
The hydraulic body is independent for each cylinder and is fixed to the pump frame.
The discharge chambers at the 3 hydraulic bodies are united by discharge collector.
The suction chambers of the hydraulic bodies are united by a common collector, sealed against each chamber

The power end converts the rotating movement from the transmission into translation movement required by the plungers. The power end is equipped with a "V" gear with different gear ratio.
The crankshaft is supported on two self-aligning radial bearings ans is provided internally with holes for crankpin lubrication.

The "V" toothed gear has the crowns fixed on crankshaft. Axial force developed in each crows pushes the crown towards the crankshaft shoulder and does not create additional stresses on the fixing screws.
The Connecting rods have both ends on feed bearings, the crankpin on two piece bimetallic bushing and crosshead on ball joint.

The Crosshead is cylindrical shapped and slides in a cast iron casing attached to the frame body.
The Transmission Mechanism lubrication system provides lubrication under pressure of the conecting rod bearings, crankshaft bearings and crosshead casings.
Oil under pressure is supplied by a gear pump witch is flanged on the plunger pump frame and is driven by its transmission shaft.
The other moving parts of the transmission mechanism such as gears, transmission shaft bearings are splash lubricated.
The triplex plunger pumps are driven by engine, by mechanical transmission. The transmission is provided with a gear box and a toothed cluch mounted between the motor and the gearbox and a toothed cluch mounted between the gearbox and the plunger pump.

See the following tables for tehnical performances with can be obtained with these pumps:

DS 40 Triplex Pump

CV 5-302
Speed
Drive motor
r.p.m
Pump double
stroke/min
Max. working pressure, bar Theoretical output, l/min
Plunger diameter, mm Plunger diamenter, mm
100 115 100 115
I 700 35,6 400 300 168 222
900 45,8 216 285
1100 56 264 349
1250 63,6 300 396
II 700 65,1 220 170 306 405
900 83,7 394 521
1100 102,3 482 637
1250 116,2 547 724
III 700 105,2 130 100 495 665
900 135,2 637 842
1100 165,3 779 1030
1250 187,8 885 1170

DS 50 A Triplex Pump

CV 5-302
Speed
Drive motor
r.p.m
Pump double
stroke/min
Max. working pressure, bar Theoretical output, l/min
Plunger diameter, mm Plunger diamenter, mm
90 100 115 90 100 115
I 700 35,6 500 400 300 136 168 222
900 45,8 175 216 285
1100 56 214 264 349
1250 63,6 243 300 396
II 700 65,1 275 220 170 248 306 405
900 83,7 319 394 521
1100 102,3 390 482 637
1250 116,2 443 547 724
III 700 105,2 170 130 100 401 495 665
900 135,2 516 637 842
1100 165,3 631 779 1030
1250 187,8 717 885 1170

DS 50 B Triplex Pump

CV 5-302
Speed
Drive motor
r.p.m
Pump double
stroke/ min
Max. working pressure, bar Theoretical output, l/min
Plunger diameter, mm Plunger diamenter, mm
90 100 115 125 90 100 115 125
I 700 35,6 500 400 300 250 255 300 400 470
900 45,8
1100 56
1250 63,6
II 700 58 330 270 208 165 400 490 660 760
900 74,.8
1100 91,5
1250 103,8
III 700 94,7 208 168 125 100 650 800 1050 1220
900 121,7
1100 148,7
1250 169
IV 700 153 128 103 78 66 1044 1290 1705 2010
900 196,7
1100 240,4
1250 273,2

DS 70 Triplex Pump

CV 12-350
speed
Drive motor
r.p.m.
Pump double
stroke/min
Max. working pressure, bar Theoretical output, l/min
Plungers diameter, mm Plungers diameter, mm
100 115 125 100 115 125
I 700 17,58 700 530 450 99 131 155
900 22,61 128 169 200
1100 27,63 156 206 244
1250 31,4 177 235 277
II 700 23,94 525 400 330 135 179 211
900 30,78 174 230 272
1100 37,62 212 281 332
1250 42,76 242 320 378
III 700 32,49 390 290 250 183 243 287
900 41,77 236 312 369
1100 51,05 288 382 451
1250 58,01 328 434 512
IV 700 42,85 290 220 180 242 320 378
900 55,09 311 412 486
1100 67,33 380 503 595
1250 76,52 432 572 676
V 700 57,36 220 160 140 324 429 509
900 73,75 417 551 651
1100 90,14 509 674 796
1250 102,43 579 766 905
VI 700 78,11 160 120 100 441 584 690
900 100,42 568 751 887
1100 122,74 694 918 1084
1250 139,48 788 1043 1232
VII 700 105,97 120 90 75 599 792 936
900 136,25 770 1019 1204
1100 166,53 941 1245 1471
1250 189,24 1070 1415 1672
VIII 700 139,78 90 65 55 790 1045 1235
900 179,71 1016 1344 1588
1100 219,65 1242 1642 1940
1250 249,60 1411 1866 2205
Output/stroke 5,65 7,47 8,83

DS 105 Triplex Pump

CV 12-351
speed
Drive motor
r.p.m.
Pump double
stroke/ min
Max. working pressure, bar Theoretical output, l/min
Plungers diameter, mm Plungers diameter, mm
85 100 115 125 85 100 115 125
I 700 17,58 1050 700 530 450 72 99 131 155
900 22,61 92 128 169 200
1100 27,63 113 156 206 244
1250 31,4 1000 128 177 235 277
II 700 23,94 730 525 400 330 98 135 179 211
900 30,78 126 174 230 272
1100 37,62 154 212 281 332
1250 42,76 174 242 320 378
III 700 32,49 530 390 290 250 132 183 243 287
900 41,77 170 236 312 369
1100 51,05 208 288 382 451
1250 58,01 237 328 434 512
IV 700 42,85 400 290 220 180 175 242 320 378
900 55,09 225 311 412 486
1100 67,33 275 380 503 595
1250 76,52 312 432 572 676
V 700 57,36 300 220 160 140 234 324 429 509
900 73,75 301 417 551 651
1100 90,14 368 509 674 796
1250 102,43 418 579 766 905
VI 700 78,11 225 160 120 100 319 441 584 690
900 100,42 410 568 751 887
1100 122,74 501 694 918 1084
1250 139,48 570 788 1043 1232
VII 700 105,97 160 120 90 75 433 599 792 936
900 136,25 556 770 1019 1204
1100 166,53 680 941 1245 1471
1250 189,24 773 1070 1415 1672
VIII 700 139,78 125 90 65 55 571 790 1045 1235
900 179,71 734 1016 1344 1588
1100 219,65 897 1242 1642 1940
1250 249,60 1020 1411 1866 2205
Output/stroke 4,08 5,65 7,47 8,83
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