Technical Data; Disposing Of The Product - Grundfos SE Serie Instrucciones De Instalación Y Operación

12. Technical data

pH value
Pumps in permanent installations can cope with the following pH
values:
Material variant Installation
1)
Dry and submerged
Standard
2)
Dry and submerged
Q
1)
Cast iron impeller, pump casing and motor top cover.
2)
Stainless-steel impeller. Cast-iron pump casing and motor top
cover.
3)
For fluctuating pH values, the range is pH 4 to 14.
Flow rate
Keep a minimum flow velocity to avoid sedimentation in the pipes.
Recommended flow velocities:
• in vertical pipes: 2.3 ft/s (0.7 m/s).
• in horizontal pipes: 3.3 ft/s (1.0 m/s)
Ambient temperature
For explosion-proof pumps, the ambient temperature on
FM
the installation site must be in the range from -4 to +104
°F (-20 to +40 °C).
For non-explosion proof pumps, the ambient temperature may
exceed 104 °F (40 °C) for a short period (maximum 3 minutes).
Liquid temperature
32-104 °F (0-40 °C).
For non-explosion proof pumps, the liquid temperature may be up
to 140 °F (60 °C) for a short period (maximum 3 minutes)
Explosion-proof pumps must never pump liquids of a
FM
temperature higher than 104 °F (40 °C).
Maximum number of starts per hour is 20.
Installation depth
Maximum 20 m below liquid level.
Solids size
1.3 - 4.9 in (35-125 mm), depending on the pump size.
Operating mode
The pumps are designed for continuous operation.
Enclosure class
IP68.
Sound pressure level
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.
26

13. 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.
pH value
3) See also end-of-life information at www.grundfos.com/product-
6 to 14
recycling.
3)
6 to 14