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1. General
Installation and Commissioning by suitably
qualified installers only!
1.1 Fields of Application
Series IPH glanded pumps are specially capable of
circulating high-temperature hot water, heat tranfer
fluid, in pressurized systems for district heating, clo-
sed industrial heating and heat transfer systems. Sui-
table fluids are clean, non-aggressive liquids without
solid particles.
1.2.2 Technical Data
Permissible fluids:
Permissible fluid temperature range
Maximum ambient temperature
Maximum working pressure
Pipe connections
Shaft seal
Mains power connections
Special drive motors
Maximum speed
Motor overload protection
Motor enclosure
Variable speed drives
Key/Footnotes:
● Standart design
❍ Special design/special accessories (at added costs)
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Alternative application of standard design
1
) Up to 40% glycol by volume. Glycol mixtures require a reassessment of pump hydraulic data in line with the increased
viscosity depending on actual mixing ratios. Only approved makes of additives with corrosion inhibitors must be used in
strict compliance with manufactures' instructions.
2
) In conjunction with the respective WILO automatic control gear.
State all pump/motor name plate data when ordering spare parts.
8
1.2 Product Data
1.2.1 Serial Code
In-Line Pump
H-O = heat transfer fluid
H-W = overheated water
Pump connection size
Nominal impeller size (OD)
Motor
– Rated power
– Nos. of poles
Heating water to VDI 2035
Water and water/glycol mixtures
Other media on request
H-O : +20°C...+ 350°C
H-W : –10°C...+ 210°C
40 °C
H-O : 9 bar
H-W : 23 bar
Flanges PN 25 / DIN 2545
Mechanical seal
3 ~ 400 V, 50 Hz
3 ~ 230 V, 50 Hz up to 3 kW
3 ~ 230 V, 50 Hz, 4 kW
3 ~ 415/440 V, 50 Hz
Special voltage/frequency on request
Explosion-proof (ATEX only)
1400 and 2900 r.p.m.
To be provided on site
IP 55
C(D)R-system
2
)
IP H-0 65/125 - 2,2 / 2
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)
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