Model range of overhung centrifugal pumps
In these pumps, the impeller is mounted on the end of the shaft. The electric motor with the pump is usually located on one common platform and connected to each other using a flange or coupling.
R series pumps (API OH2)
The axis of the impeller of pumps of this series is located horizontally, the casing is split in a transverse plane to the axis of the impeller, the fluid to the impeller is supplied from one side.
These pumps are easy to maintain, and due to the correct design of the bearing units for all applications with an operating temperature not exceeding 400 °C, there is no need to equip them with water cooling.
The double volute version results in reduced radial forces and shaft misalignment.
The rigidity of the casing, bearing assemblies and other structural components is quite sufficient so that, under the influence of the load and the weight of the nozzles, the shaft deviations are within the allowable range of values.
Technical specifications:
- Feed: up to 2500 m3/hour.
- Head: up to 380 m.
- Operating temperature range: from -100 to +450 °С.
- Operating pressure: up to 210 bar.
- Revolutions: up to 3600 rpm.
Applications: chemical, petrochemical and refinery industries, injection of make-up water in power plants.
RL series pumps (API OH2)
The casing joint connector is made in the transverse plane to the horizontal axis of the impeller, the fluid to the impeller is supplied from one side.
Technical specifications:
- Feed: up to 10 m3/hour.
- Head: up to 240 m.
- Operating temperature range: from -100 to +450 °С.
- Operating pressure: up to 40 bar.
- Revolutions: up to 3600 rpm.
R MAK series pumps (API OH2)
They have a radial body split and a horizontal axis of the impeller, a magnetic drive, the liquid to the impeller is supplied from one side. Manufactured in accordance with API 685.
The pumps are maintenance friendly. The double volute version results in reduced radial forces and shaft misalignment.
The rigidity of the casing, bearing assemblies and other structural components is quite sufficient so that, under the influence of loads and the weight of the nozzles, the shaft deviations are within the allowable range of values.
Technical specifications:
- Feed: up to 700 m3/hour.
- Head: up to 360 m.
- Operating temperature range: from -100 to +250 °С.
- Operating pressure: up to 88 bar.
- Revolutions: up to 3600 rpm.
Applications: chemical industry, petrochemical and oil refining enterprises, injection of make-up water in power plants.
BS series pumps (API OH2)
These pumps have a vertical axis impeller mounted on the motor shaft.
Technical specification:
- Feed: up to 500 m3/hour.
- Head: up to 300 m.
- Operating temperature range: from -40 to +250 °С.
- Operating pressure: up to 64 bar.
- Revolutions: up to 3600 rpm.
Pumps series BSD-DSIL (API OH3)
Heavy duty vertical overhung pumps. The liquid medium enters the impeller from one or both sides.
Technical specifications:
- Feed: up to 6000 m3/hour.
- Head: up to 300 m.
- Operating temperature range: from -150 to +400 °С.
- Operating pressure: up to 100 bar.
- Revolutions: up to 3600 rpm.
IL-DSIL (API OH3) series pumps
The axis of the impeller is vertical, the location of the branch pipes is in-line. The liquid to the impeller is supplied from one side (IL series) and from two sides (DSIL series).
Due to the large size of the receiving space of the impeller of the first stage and the impeller with one-sided flow of liquid, media are pumped without problems with a small cavitation reserve.
Technical specifications:
- IL/DSIL Feed: up to 750/up to 6000 m3/hour.
- IL/DSIL Head: up to 350/up to 150 m.
- Operating temperature range: from -150 to +400 °С.
- Operating pressure: up to 100 bar.
- Revolutions: up to 4000 rpm.
Applications: fluid transportation, oil refineries, water supply, sewerage.
