Product Information SIHImulti MSL, MSM0 pages

Modular multistage pumps
SIHImulti
Type MSL, MSM
133.23301.57.01 E PUMP TECHNOLOGY SIHImulti MSL, MSM
02/2008
Description
SIHImulti pumps are horizontal multistage centrifugal pumps
of ring-section design, which meet the technical
requirements of ISO 5199 / EN 25199.
The advanced modular design reduces the number of parts
whilst maximising interchangeability.
Optimal selection of impeller diameter and diffuser size for
each ensures that the pump closely match the required duty
conditions.
Applications
Pumps of the SIHImulti range meet the specific requirements
of many applications, such as:
• Waterworks, and water supply
• Boiler feed
• Pressure boosting
• Irrigation
• High pressure cleaning
• Heating
• Condensate systems
• Reverse osmosis
• Chemical and Process
• and many more ...
Technical Data
Flowrate max. 450 m³/h
Head max. 630 m
Speed max. 3600 rpm
Temperature -10 to +180°C *
Pressure Rating max. 63 bar
Shaft seal - packed gland
- mechanical seal
Direction of rotation counter-clockwise, when
viewed from discharge side
* 200°C as special design for example pump feet are
mounted concentric in accordance to ISO 9905
Construction
Different hydraulic impeller and diffuser sizes can be
installed in a standardised casing, thus enabling the pump to
be designed exactly for the working point required. The first
stage of each pump size is equipped with an suction
impeller.
Axial thrust is hydraulically balanced by a patented balance
drum system with a self-adjusting throttling device. Residual
thrust is absorbed by a generously-sized angular-contact
ball bearing. The balancing line is returned to the suction
casing or in the upstream vessel. Standard suction casing
construction is with axial or radial inlet nozzles.
A mechanical shaft seal is located on the drive side only. It
can consist of a packed gland (cooled or uncooled, with
external flushing connection), (cooled or uncooled) singleacting
mechanical seal or (uncooled) double-acting
mechanical seal.
The pump rotor is supported on the drive side by greaselubricated
anti-friction bearings and on the suction side by a
self-adjusting sleeve bearing lubricated by the pumped
liquid.
The pump is normally driven from the discharge side. As
option the pump can be driven from the suction side in which
case an antifriction inboard/outboard bearing is provided.
The casing components are sealed by O-rings. The pump
casings are held together by external tie rods. The pump
feet are mounted to the suction and discharge casings in
such a manner that the suction casing (for suction casings
with radial branch) and discharge casing can be swung to
suit the installation conditions.
All pump sizes can be provided with one or more dummy
stages, if required.
Options
• Special materials
• Monitoring Systems