KO Series Centreline-Supported Top-Suction Single-Stage Pumps with Overhung Impeller
Applications: Designed for forced circulation of superheated boiler water within a closed-circuit systems in the exhaust-heat boilers. May be also used for handling liquids similar to the same in viscosity and chemical activity.
Design: KO series pump units consist of a centrifugal pump and an induction motor, which are connected by means of a rubber-bushed (pin-and-bushing) flexible coupling and mounted on a common fabricated base plate.
The pumps are electrically driven, horizontal, centreline-supported, back pull-out, radially-split, single stage volute-casing centrifugal pumps with overhung impeller and bearing pedestal.
Flanged suction and discharge nozzles integrally cast with the pump casing are vertically to the top.
A casing cover is provided with a thermal barrier chamber.
The pump rotor is carried by oil-bath lubricated antifriction bearings. Inner space of the bearing pedestal serves as their oil sump. The design provides for its cooling with liquid supplied into a special chamber of the bearing pedestal.
Shaft sealing: stuffing box (packed gland) fed with cooling and sealing liquid from an external source.
Sense of rotation of pump shaft is counterclockwise, if viewed from the drive side.
DN |
mm |
200, 250 |
Q |
m3/h |
722 |
H |
m |
100 |
p |
kg/cm2 |
51 |
t |
oС |
+1 - +260 |
n (sync) |
rpm |
1500 |
Coverage chart of the KO Series Pumps:
Performance of the KO Series Pumps:
| Pump make | Pump parameters |
||||||
| Capacity, m3/h | Head, m | Speed of rotation, rpm | Power input (r=784 kg/m3), kW | Power input (r=907 kg/m3), kW | Efficiency, % | NPSH required, m | |
KO 650-90 UKhL4 |
650 |
90 |
1475 |
160 |
204 |
78 |
20 |
KO 650-80 UKhL4 |
650 |
80 |
1475 |
144 |
184 |
77 |
20 |
KO 650-70 UKhL4 |
500 |
70 |
1475 |
128 |
165 |
76 |
20 |
KO 500-75 UKhL4 |
500 |
75 |
1475 |
125 |
160 |
64 |
20 |
Handled Media:
- - Water up 1 oС to 260 oС
