Pump Hydraulic Requirements; Protection Against Entrapment; Covers/Grilles On Intake Points; Pump Intake Points - Kripsol KNG Serie Manual De Instrucciones

6. PUMP HYDRAULIC REQUIREMENTS

spa or water feature unless there are at least two inputs on each pump intake line. Never
use or operate pools, spas or water features if the grills on intakes are broken or
missing.
Follow the instructions listed below to minimise risks.

6.1 PROTECTION AGAINST ENTRAPMENT

The pool's suction system must provide protection against the risk of hair entrapment or suction.

6.2 COVERS/GRILLES ON INTAKE POINTS

All intake points must have covers/grilles in a good state of repair. Covers/grills must be
replaced if cracked, broken or missing.

6.3 PUMP INTAKE POINTS

There must be at least two balanced main drains with grilles for each pump intake line, with a
minimum separation of 1m (3 feet) between the centres of the main drain.
The system must be built in such a way that it cannot function if water flows to the pump from just
one sump (there must be at least two main drain connected to the pump whenever it is operating).
In any case, if two main drain are connected to an individual intake line, that line must be equipped
with a valve that allows the flow of water to the pump from both main drains to be shut-off.

6.4 WATER SPEED AND FLOW

The maximum water speed must be less than or equal to 1.2 m/s (4 feet per second) unless the
intake flow complies with the latest specifications indicated in the regulations of each country,
region or community regarding the use of suction systems in swimming pools, spas or water
features.
If 100% of the pump's water flow comes from the main drain system, the maximum water speed
in the suction system should be 1.2 m/s (4 feet per second) at all times, even if one of the main
drains is completely blocked. The water flow in the other remaining drain(s) must comply
with the latest specifications indicated in the regulations of each country, region or community
regarding the use of suction systems in swimming pools, spas or water features.

6.5 PIPE INSTALLATION

The pipe system must have at least the same section as the pump connections, i.e. ø50
(ø1-1/2") pipes for pumps with a power rating of up to 1 CV or ø63 (ø2") pipes for pumps with
a power rating above 1 CV.
To prevent stresses on the body of the pump, the installation, pipes and associated connection
elements, pipes must be correctly aligned with the pump without using force, whilst attempting
to ensure that both the intake and discharge pipes are secured independently as close to the
pump as possible.
To prevent stresses on the installation due to small differences on the final connection of the
installation pipes, we recommend starting the installation at the pump.
INTAKE.
Cavitation may occur if the pump's intake becomes obstructed, causing damage to the internal
elements of the pump. Keep the intake pipe clear of debris, solid residue and dirt.
The suction of the pump is dangerous and can trap and even
drown swimmers. Never use or allow anyone else to use a pool,
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