Installation and operating instructions WILO Mather and Platt
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MISO / PISO Pumps
11
5.2 Type key
MISO 150-500
150
–
Nominal Discharge nozzle diameter in mm.
500
–
Nominal Impeller diameter in mm.
MISO/ PISO
–
Name of the Range
5.3
General description
Limits of usage of the standard range
The technical features of the product have been
described in the offer made for this product, especially
the fluid compatibility. Please refer to this:
Property
Value
Remarks
Speed
2900, 1450 1/min
Model dependent
Discharge nominal diameters DN
25 up to 200
Flange standard
PN 16/25
Model dependent
Limit of fluid temperature (min. /max.)
- Mechanical seal version [°C]
- Gland packing version [°C]
-20 up to +120
-20 up to +80
other on request
Limits of ambient temperature (min. /max.) [°C]
-16 up to +40
other on request
Ambient humidity
< 90 %
other on request
Max. operating pressure
16 bar, generally
10 bar for some models
Motor insulation class
F
other on request
Motor protection level
IP 55
Electrical protection for motor
–
required in place (in accordance
with local regulation)
Acoustic pressure level, (In accordance with
motor performances)
–
Refer to the data plate on the motor
on in technical leaflets
Electrical connections
3~230V, 50Hz (
≤4kW)
3~415V, 50Hz (
≥5,5kW)
Other frequency, voltages,
please contact manufacturer
5.4 Scope of delivery
Pump can be delivered
•
As a complete pump set including driver (motor/engine),
base plate, coupling and coupling guard;
•
Either without driver or
•
As bare shaft pump without base plate.
5.5 Accessories
•
Companion Flange
•
Foundation bolts
•
Shims
•
Pressure Gauges
•
Relief Valves
6 Description and function
6.1
Description of the product
MISO / PISO pumps are horizontal, single stage volute
casing pumps with nominal outputs and flange dimensions
meeting ANSI B16.1 CLASS 125 FF (FOR CAST IRON
FLANGES) / ANSI B16.5 CLASS 150 RF (FOR STEEL
FLANGES). Their back pull out construction enables the
disassembly of the complete bearing unit towards the
drive side without removing the pump casing from the pipe
work. MISO / PISO pumps are preferably used when pure or
turbid liquids, not containing solid particles, are handled.
6.1.1 Shaft Seal
Depending on the application, different shaft sealing
executions are offered.
It is advised to use the stuffing box version in the
following installation configurations:
•
If the pump draws from a suction line,
•
If the pump has a feed line with a pressure of less than 0.5
bar.
•
If the pumped liquid is at or near its boiling point.
6.1.2 Engine driven pump
An engine driven pump set is the unitization of a bare
shaft pump and a Diesel engine on the same base plate.
Refer to the engine installation manual. The engine driven
pump set is supplied with the foundation bolts for
grounding. Use the one supplied or equivalent of bigger
size. Ensure a correct electrical earth connection between
engine, base plate and main earth. (Figure 2 Pg. No.3)
NOTE:
Before starting the pump please cross check the
alignment of pump and engine on the base plate, coupling
bush fitment, clearness on the periphery of the coupling.
If any difference in the center height is observed, please
use shims of suitable thickness to overcome the
misalignment
