Applications; Pumped Liquids; Technical Data; Ambient Temperature - Grundfos TP Instrucciones De Instalación Y Funcionamiento

The pump should be lifted by means of nylon straps
and shackles, see fig. 1.
Fig. 1 TP

5. Applications

Grundfos single-stage in-line centrifugal pumps,
type TP, are typically used for
• circulation in heating systems, including district
heating
• circulation in ventilating and air-conditioning
systems
• circulation and transfer in cooling systems
• distribution and pressure boosting in water
supply systems
• circulation, transfer and pressure boosting in
industrial systems.

5.1 Pumped liquids

Thin, clean, non-aggressive and non-explosive
liquids, not containing solid particles or fibres.
The liquid must not attack the pump materials
chemically.
When pumping liquids with a density and/or viscosity
higher than that of water, motors with
correspondingly higher outputs must be used, if
required.
The O-rings and the mechanical shaft seal chosen
must be suitable for the liquid to be pumped.
Special shaft seals may be required if the pump is
used for pumping treated water at temperatures
above 80 °C containing additives to prevent system
corrosion, calcareous deposits, etc., e.g. in heating
and ventilating systems.
When fitted with the correct shaft seal, the pump can
be used for pumping liquids at temperatures down
to -25 °C.
12

6. Technical data

6.1 Ambient temperature

Maximum +40 °C.

6.2 Liquid temperature

See pump nameplate.
Depending on the cast-iron version and the pump
application, the maximum liquid temperature may be
limited by local regulations and laws.

6.3 Minimum inlet pressure

To ensure optimum pump operation, the inlet
pressure (system pressure) must be adjusted
correctly, see page 201.

6.4 Maximum inlet pressure

The actual inlet pressure + pressure when the pump
is running against a closed valve must always be
lower than the "maximum operating pressure",
see pump nameplate.

6.5 Electrical data

See motor nameplate.

6.6 Sound level

See page 206.

7. Installation

7.1 Pump location

The pump should be sited in a dry, well ventilated,
but frost-free position.
Warning
When pumping hot liquids, care should
be taken to ensure that persons cannot
accidentally come into contact with hot
surfaces.
To ensure sufficient ventilation to the motor and
pump, at least 0.5 metre clearance should be left
above the pump.
Furthermore, it should be ensured that sufficient
clearance is available to allow the use of lifting
equipment when the pump/motor is to be serviced.