ISB Series – Split Case Pumps

Aquaplus ISB Series Split Case Pumps feature high operating reliability, low maintenance costs and service-friendly design. They are primarily used for handling pure, raw and waste water.

ISB Series – Split Case Pumps
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High operating reliability – Thanks to the double-entry impeller (compensating the axial forces) the load on the generously dimensioned, pre-loaded, maintenance-free bearings is minimal.

Low maintenance costs – The combination of solid bearing brackets, a short and rigid shaft, and pre-loaded bearings guarantees low vibrations and long operating lives of bearings, seals and coupling. Corrosion and abrasion resistant materials ensure top service lives for shaft protecting sleeves, impeller/casing wear rings, and impeller.

Service-friendly design – The self-centering upper part of the casing and the pre-loaded rotor enable cover and rotor assembly without any adjustments. For maintenance, the cover’s hexagon head bolts are completely removed from the casing. The casing split flange can therefore be easily and thoroughly cleaned, and the inside of the pump is freely accessible.

Reliable sealing – The sold casing split flange at the upper and lower casing part ensures reliable and trouble-free sealing of the upper and lower casing halves.

For handling pure, raw and waste water as well as seawater in:
• Water works
• Irrigation and drainage pumping stations
• Power stations
• Industrial water supply
• Fire fighting systems
• Marine and offshore engineering
• General applications in the petrochemical industry
• Seawater desalination

Pump Sizes DN 80-700 3 to 28 in
Capacity Up to 10, 000 m3/h Up to 44, 030 gpm
Discharge head Up to 240 m Up to 787 ft
Operating pressure Up to 25 bar Up to 363 psi
Temperature Up to 140°C Up to 284°F

Pump Dimensions

Pump Size (mm) Pump (mm) Suction Side  Discharge Side 
a1 a2 d3 f h1 h2 h3 l2 l3 z AS  AD
080-210 300 300 19 415 315 140 168 300 715 340 125 80
080-270 300 300 19 415 315 140 190 300 715 380 125 80
080-370 330 330 19 415 315 140 225 300 715 450 125 80
100-250 330 330 19 415 355 170 195 300 715 390 150 100
100-310 330 330 19 415 355 170 225 300 715 450 150 100
100-375 370 370 19 415 355 170 260 300 715 520 150 100
125-230 370 370 19 515 400 200 210 366 881 420 200 125
125-290 370 370 19 515 400 200 230 366 881 460 200 125
125-365 370 370 19 515 400 200 260 366 881 520 200 125
125-500 450 450 19 515 400 200 305 366 881 610 200 125
150-290 400 400 19 515 400 200 245 366 881 490 200 150
150-360 400 400 19 515 400 200 265 366 881 530 200 150
150-460 450 450 19 590 400 200 305 399 989 610 200 150
150-605 600 500 19 590 500 300 370 399 989 740 200 150
200-320 450 450 24.5 590 500 240 285 399 989 570 250 200
200-420 500 500 24.5 590 500 240 310 399 989 620 250 200
200-520 600 500 24.5 655 560 300 370 464 1119 740 250 200
200-670 650 550 30 655 600 350 430 464 1119 860 250 200
250-370 500 500 24.5 655 600 300 320 464 1119 640 300 250
250-480 550 550 30 730 600 300 355 515 1245 710 300 250
250-600 650 550 30 730 630 350 420 515 1245 840 300 250
250-800 800 700 30 810 710 400 520 585 1395 1040 300 250
300-300 550 500 30 655 630 300 360 464 1119 720 350 300
300-435 650 550 30 730 670 350 365 515 1245 730 400 300
300-560 700 650 30 810 710 350 430 585 1395 860 400 300
300-700 750 650 30 810 750 400 485 585 1395 970 400 300
350-360 650 550 30 730 670 350 410 515 1245 820 400 350
350-430 750 650 30 810 750 400 465 585 1395 930 450 350
350-510 700 650 30 810 750 400 420 585 1395 840 400 350

Foot and Shaft Dimensions

Pump Size (mm)  Foot (mm) Shaft (mm) Pump Weight (kg)
b1 d2 m1 m2 n1 n2 n3 n4 s d1 l1 Pump Water fill 
080-210 70 19 320 270 205 205 170 170 20 35 80 185 10
080-270 70 19 320 270 205 205 170 170 20 35 80 195 15
080-370 70 19 320 270 205 205 170 170 20 35 80 205 20
100-250 70 19 320 270 235 235 200 200 20 35 80 210 20
100-310 70 19 320 270 235 235 200 200 20 35 80 225 25
100-375 70 19 320 270 235 235 200 200 20 35 80 245 30
125-230 70 19 390 340 260 260 225 225 20 45 100 250 35
125-290 70 19 390 340 260 260 225 225 20 45 100 275 40
125-365 70 19 390 340 260 260 225 225 20 45 100 300 45
125-500 70 19 390 340 315 315 280 280 20 45 100 335 55
150-290 70 19 390 340 260 260 225 225 20 45 100 350 50
150-360 70 19 390 340 260 260 225 225 20 45 100 360 60
150-460 70 19 480 430 315 315 280 280 20 55 125 440 75
150-605 70 19 480 430 385 385 350 350 20 55 125 650 90
200-320 70 19 480 430 315 315 280 280 20 55 125 450 80
200-420 70 19 480 430 315 315 280 280 20 55 125 520 95
200-520 70 23 480 400 385 385 350 350 20 65 140 840 115
200-670 100 23 480 400 400 400 350 350 26 65 140 990 140
250-370 100 23 480 400 400 400 350 350 26 65 140 665 125
250-480 100 23 600 520 400 400 350 350 26 75 160 910 145
250-600 100 23 600 520 400 400 350 350 26 75 160 1215 180
250-800 100 23 600 520 525 525 475 475 26 85 180 1500 150
300-300 100 23 480 400 400 400 350 350 26 65 140 870 150
300-435 100 23 600 520 400 400 350 350 26 75 160 905 190
300-560 100 23 600 520 525 525 475 475 26 85 180 1425 225
300-700 100 23 600 520 525 525 475 475 26 85 180 1690 275
350-360 100 23 600 520 400 400 350 350 26 75 160 1100 230
350-430 100 23 600 520 525 525 475 475 26 85 180 1285 240
350-510 100 23 600 520 525 525 475 475 26 85 180 1395 290