KSB GIW MDX, Installation & Operating Manual

Page: 14 / 53

MDX [en-US]
14
4 Description
4.1 Technical Specification
This pump range has been designed to the Imperial system of units using Imperial dimensioned components, fasteners and
sealing elements. In some special cases Metric components have been used. Please consult your arrangement drawings
and bills-of-material for details concerning your equipment.
Tooling used for assembly and maintenance of fasteners and other components should be according to the correct Imperial
or Metric standard. Spare parts such as oil seals, o-rings and stuffing box packing should also be purchased in the correct
Imperial or Metric size. Crossover between Imperial and Metric tools or spare parts is generally not recommended.
Contact your GIW / KSB representative for specific problems or questions.
The MDX is a centrifugal pump for handling highly abrasive slurries for mill circuit applications. Applications include SAG (Semi-
Autogenous Grinding) and ball mill discharge; mill transfer; cyclone and screen feed.
4.2 Designation
Example Designation: MDX 150-650.5 G L B T MM
Pump Type
Discharge Nozzle (mm)
Nominal Impeller Diameter (mm)
Shaft Size
Plug Type
Bearing Assembly Type
Seal Type
Lantern Ring Material
Suction Liner Material
Hub Liner Material
Shaft Size
3 3 - 15/16
5 5 - 7/16
6 6 - 7/16
7 7 - 3/16
9 9
10 10 - 1/4
11 11 - 1/2
Plug Type
F 3.5S
G 2C4.5
J 6.5
K 7.75
L 9.0
M 11.5
Bearing Assembly Type
L Limited End Float
C Conventional
Seal Type
F Forward Flush
K KE Design
M Mechanical Seal
B Throat Bushing
S SpiralTrac™
Lantern Ring Material
T Teflon
M Metal
N Not Applicable
Suction/Hub Liner
Material
M Metal
R Rubber
N Not Applicable
For additional information please contact your GIW / KSB representative.
4.3 Design Features
Horizontal, end suction, modified volute casing pump with heavy section thickness and 3-, 4- or 5-vane impellers for the optimum
solids passage and performance. Single wall, heavy section, hard metal wet end combined with robust cartridge bearing
assembly provides maximum reliability and ease of maintenance.
The standard MDX is a single wall, hard metal configuration in discharge sizes 6 inch (152mm) to 30 inch (762mm). Other
custom produced (CP) and custom engineered (CE) configurations are available upon request.
4.4 Noise Characteristics
WARNING
The addition of coarse solids, froth or cavitating conditions can significantly increase the noise levels in both the
pump and piping. If accurate noise levels are required for these conditions, field-testing will be required.
If running within the normal limits of operation and with clear water, the noise level for the pump alone (with gear box and motor
noises shielded) does not exceed 85 dB(A) at one meter.
Noise levels from motor and gear reducer must be added to the above in accordance with standard acoustic formulas, taking
into account the distance between units. For belt driven units, add an additional 2 dB.