KSB Itur ILN Series

The optimized successor to the IL family, ILN Series is built for continuous marine duty pumping clean or lightly contaminated liquids: main and auxiliary engine cooling, bilge, ballast, firefighting, cargo tank cleaning, brine circulation, deck wash, and HVAC circulation. It's a vertical, volute-casing pump with coaxial in-line suction and discharge flanges, a single-stage closed impeller, and renewable casing and cover wear rings. Land-based use is possible too, though hydrocarbon service always needs a separate technical review for material compatibility.

Most sizes use a single suction; the two largest ILN frames (350-300-330 and 450-400-430) use double suction instead, while every ILNC size stays single-suction. The model code itself tells you the configuration: a plain ILN or ILNC is the standard build with no auxiliary priming; the S suffix (ILNS/ILNCS) adds an integrated liquid-ring vacuum pump for automatic self-priming, and the E suffix (ILNE/ILNCE) achieves the same with an air ejector instead. The rest of the part number spells out suction flange DN, discharge flange DN, nominal impeller diameter, and impeller hydraulic profile, in that order.

Temperature Range -20 °C to 70 °C
Max Pressure 16 bar
50 Hz 60 Hz
Max Flow (ILN) (m³/h) 3,100 3,700
Max Flow (ILNC) (m³/h) 370 447
Max Head (ILN) (m) 112 162
Max Head (ILNC) (m) 112 161
Max Speed (rpm) 3,000 3,600

Models

Reference Numbers

These reference numbers identify a part's position on the series diagram — the exact part fitted differs by model. To order, provide the reference number together with the model name and the serial number stamped on the nameplate.

Assembly Group 1
Volute casing 102
Casing cover 161
Pump stool 181
Shaft 210
Impeller (ILN Series) 230
Rolling element bearing 320
Radial ball bearing 321
Drive lantern 341
Bearing cover (ILN Series) 360
Joint ring 411.1/.2
O-ring 412
Mechanical seal 433
Casing wear ring (ILN Series) 502.1/.2
Thrower 507
Spacer bush 543
Washer 550
Pressure Gauge 691
Pipe 710.1/.2
Pipe union 731.1/.2/.3
Coupling 840
Coupling part 860
Hexagon head bolt 901.1/.2/.3
Hexagon socket head cap screw 914
Plug 916.1/.2
Impeller nut 922
Circlip 932.1/.2
Key 940.1/.2
Assembly Group 2
Volute casing 102
Casing cover 161
Pump stool 181
Shaft 210
Impeller (ILN Series) 230
Rolling element bearing 320
Radial ball bearing 321
Drive lantern 341
Bearing housing 350
Bearing cover (ILN Series) 360
Joint ring 411.1/.2
O-ring 412
Mechanical seal 433
Casing wear ring (ILN Series) 502.1/.2
Thrower 507
Spacer bush 543
Washer 550
Pressure Gauge 691
Pipe 710.1/.2
Pipe union 731.1/.2/.3
Coupling 840
Coupling part 860
Hexagon head bolt 901.1/.2/.3/.4
Hexagon socket head cap screw 914
Plug 916.1/.2
Impeller nut 922
Circlip 932.1/.2
Key 940.1/.2
Assembly Group 3
Volute casing 102
Casing cover 161.1/.2/.3
Pump stool 181.1/.2
Shaft 210
Impeller (ILN Series) 230
Radial ball bearing 321
Drive lantern 341
Bearing cover (ILN Series) 360.1/.2
Joint ring 411.1
O-ring 412.1/.2/.3
Mechanical seal 433
Casing wear ring (ILN Series) 502.1/.2
Thrower 507
Shaft sleeve 523
Bearing bush 545.1/.2
Washer 550.1/.2/.3
Pressure Gauge 691
Pipe 710.1/.2
Pipe union 731.1/.2/.3
Coupling 840
Coupling part 860
Hexagon head bolt 901.1/.2/.3/.4
Stud 902
Hexagon socket head cap screw 914.1/.2
Plug 916.1
Nut 920
Impeller nut 922
Circlip 932.1/.2
Key 940.1/.2
Spring 950
Assembly Group 4
Volute casing 102
Casing cover 161
Pump stool 181
Shaft 210
Impeller (ILN Series) 230
Rolling element bearing 320
Radial ball bearing 321
Drive lantern 341
Bearing cover (ILN Series) 360
Joint ring 411.1/.2
O-ring 412
Mechanical seal 433
Casing wear ring (ILN Series) 502.1/.2
Thrower 507
Washer 550
Pipe 710.2
Barrel nipple 73-4
Pipe union 731.2
Hexagon head bolt 901.1/.2/.3
Grub screw 904
Plug 916.1/.2
Impeller nut 922
Circlip 932.1/.2
Key 940
Assembly Group 5
Volute casing 102
Casing cover 161
Pump stool 181
Shaft 210
Impeller (ILN Series) 230
Radial ball bearing 321
Drive lantern 341
Bearing housing 350
Joint ring 411.1/.2
O-ring 412
Mechanical seal 433
Casing wear ring (ILN Series) 502.1/.2
Thrower 507
Washer 550
Pipe 710.2
Pipe union 731.2
Hexagon head bolt 901.1/.2/.3/.4
Grub screw 904
Plug 916.1/.2
Impeller nut 922
Circlip 932.1/.2
Key 940
Assembly Group 6
Volute casing 102
Casing cover 161
Shaft 210
Impeller (ILN Series) 230
Radial ball bearing 321
Bearing bracket (ILN Series) 330
Drive lantern 341
Bearing cover (ILN Series) 360
Gasket 400.1/.2
Joint ring 411.1/.2
Mechanical seal 433
Ring 500.1/.2
Casing wear ring (ILN Series) 502.1/.2
Washer 550
Coupling guard 681
Pressure Gauge 691
Pipe 710.1
Pipe union 731.1/.2/.3
Coupling part 860
Hexagon head bolt 901.1/.2/.3
Stud 902.2/.3
Threaded Plug 903.1
Nut 920.2/.3
Impeller nut 922
Key 940.1/.2
Assembly Group 7
Volute casing 102
Casing cover 161
Shaft 210
Impeller (ILN Series) 230
Rolling element bearing 320
Radial ball bearing 321
Bearing bracket (ILN Series) 330
Drive lantern 341
Bearing cover (ILN Series) 360
Gasket 400.1
Joint ring 411.1
Joint ring 411.2
Mechanical seal 433
Casing wear ring (ILN Series) 502.1
Casing wear ring (ILN Series) 502.2
Thrower 507
Coupling guard 681
Pressure Gauge 691
Pipe 710.1
Pipe union 710.1/.2/.3
Coupling 840
Coupling part 860
Hexagon head bolt 901.1/.3/.4
Stud 902.2/.3
Threaded Plug 903.1/.2

Don't see the series or exact model? Send us your vessel details and the pump nameplate, and we'll confirm whether we can source it.