32 WILO AG 09/2007
English
11. Technical data
All the technical data of the pump or pump/unit
are described in the following chapter. If other
information were necessary, do not hesitate to
contact our technical department.
Pressure component operating limits
Shaft sealing operating limits
NOTE: All indicated operating limits are not valid
for all liquids, which can be pumped. See techni-
cal data or delivery note.
Flange locations
Axial suction flange, discharge flange radialy
upwards.
Flanges
For body cast iron, DIN 2533 PN16, except for
150-200, 150-250 and 200-250 models, they are
PN10 at suction.
Direction of rotation
Clockwise seen from the drive end of the pump.
Materials of construction, and of shaft seals
See chapter 4.
Vibrations
NL range pumps comply with VDI 2056 and ISO
5199 Class K for pumps with a driving power of
up to 15 kW and Class M with a driving power of
more than 15 kW.
Noise level
The noise levels of the pump comply with the
Directive 001/30 - 1992 of the EUROPUMP
Commission.
The following table provides approximate values:
Pump without motor
Note that additional noise can be generated by:
• The driver.
• A possible misalignment of the coupling.
• Pipework (note: the larger the pipe diameter, the
lower the pipe noise.
Material Temperature Pressure Type
Body cast iron
with impeller
cast iron or
impeller bronzes
-20ºC to
120ºC
16 bar 32-125 to 80-315
10 bar
80-400 to 300-
500
14 bar 150-500
120ºC to
170ºC
14 bar 32-125 to 80-315
9 bar
80-400 to
300-500
8 bar 150-500
Shaft sealing execution Temperature limits
Packing ring seal
-40°C to +110°C
Mechanical seal
-20°C to +120°C
Volute casing pump
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