Technical Data; Ambient Temperature; Liquid Temperature; Operating Pressure/Test Pressure - Grundfos TP Serie Instrucciones De Instalación Y Funcionamiento

9. Technical data

9.1 Ambient temperature

Maximum +55 °C (~ +131 °F).

9.2 Liquid temperature

–25 °C (~ –13 °F) up to +140 °C (~ +288 °F).
The maximum liquid temperature depends on the
mechanical shaft seal type and the pump type.
Depending on the cast-iron version and the pump
application, the maximum liquid temperature may be
limited by local regulations and laws.
The maximum liquid temperature is marked on the
pump nameplate.
If the pump is operating with liquids at
high temperatures, the life of the shaft
seal may be reduced. It may be
Note
necessary to replace the shaft seal
more often.

9.3 Operating pressure/test pressure

The pressure test has been made with water
containing anti-corrosive additives at a temperature
of +20 °C (~ +68 °F).
Operating
Pressure
pressure
stage
bar
PN 6 6
PN 6/PN 10 10
PN 16 16

9.4 Inlet pressure

To ensure optimum and quiet pump operation, the
inlet pressure (system pressure) must be adjusted
correctly. See table on page 258.
For the calculation of specific inlet pressures,
contact the local Grundfos company or see the data
booklet for TP(D)/TPE(D), if at hand.

9.5 Enclosure class

Closed drain hole in motor: IP 55.
Open drain hole in motor: IP 44.
(Drain hole, see fig. 8.)

9.6 Electrical data

See motor nameplate.
18
Test pressure
MPa bar MPa
0.6 10 1.0
1.0 15 1.5
1.6 24 2.4

9.7 Sound pressure level

Pumps with single-phase motors:
The sound pressure level of the pump is lower than
70 dB(A).
Pumps with three-phase motors:
See table on page 269.

9.8 Environment

Non-aggressive and non-explosive atmosphere.
Relative air humidity: Maximum 95 %.