Grundfos SE - Technical Data; Disposing of the Product

10. Technical data
pH value
Pumps in permanent installations can cope with the
following pH values:
Material
variant
Installation pH value
Standard
1)
Dry and submerged
6-14
3)
Q
2)
Dry and submerged
6-14
3)
1)
Cast iron impeller, pump housing and motor top.
2)
Stainless-steel impeller. Cast iron pump housing
and motor top.
3)
For fluctuating pH values, the range is pH 4 to 14.
Flow rate
Keep a minimum flow rate to avoid sedimentation in
the pipe network. Recommended flow rates:
• in vertical pipes: 0.7 m/s.
• in horizontal pipes: 1.0 m/s.
Ambient temperature
For explosion-proof pumps, the ambient
temperature on the installation site must
be in the range from -20 to +40 °C.
For non-explosion proof pumps, the ambient
temperature may exceed +40 °C for a short period
(maximum 3 minutes).
Liquid temperature
0 to +40 °C.
For non-explosion proof pumps, the liquid
temperature may be up to 60 °C for a short period
(maximum 3 minutes).
Explosion-proof pumps must never pump
liquids of a temperature higher than +40
°C.
Operating mode
The pumps are designed for continuous operation.
Frequency of starts and stops
Maximum number of starts per hour is 20.
Installation depth
Maximum 20 m below liquid level.
Solids size
From 35 to 125 mm, depending on the pump size.
Enclosure class
IP68.
Sound Pressure
Use hearing protection when working
nearby an installation in operation with a
sound pressure level above 70 dB(A).
Motor liquid
The motor is factory-filled with Grundfos SML3 motor
liquid which is frost-resistant until -20 °C. The motor
liquid helps to transfer the heat generated by the
motor to the cooling chamber and to the pumped
liquid to pass on the outside of the pump.
Electrical data
The supply voltage and frequency are marked on the
nameplate.
The voltage tolerance at the motor terminals must be
within ± 10 % of the rated voltage.
11. Disposing of the product
This product or parts of it must be disposed of in an
environmentally sound way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
The crossed-out wheelie bin symbol
on a product means that it must be
disposed of separately from household
waste. When a product marked with
this symbol reaches its end of life, take
it to a collection point designated by
the local waste disposal authorities.
The separate collection and recycling
of such products will help protect the
environment and human health.
See also end-of-life information at
www.grundfos.com/product-recycling.
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English (GB)