Installation And Assembly; Preparing The Filter And Piping; Insertion And Establishing Connections; Connecting The Filter Cleaning Unit - Graf Optimax-XXL Instrucciones De Montaje

5.1

Preparing the filter and piping

The Optimax XXL Filter external is designed for installation in a pilot shaft or a cistern. Direct installation
in the ground without protection is not permitted.
Application example (simplified representation):
Important:
The surface upon which the filter is installed must be completely level in order to ensure optimal function.
A suitable lubricant must be used to connect the piping. The positions of the relevant connections can be
found in "Technical data" on page 3.
Before assembly, the filter's stainless steel pipe fittings must be sealed using the silicone supplied. Before
putting into operation the provided sealing tape is to be fixed on the inner frame between the case and
cover of the filter. Thus the connection between filter cover and case is leak proof after the screwing.
5.2

Insertion and establishing connections

The filter is inserted into the prepared shaft and is connected to the corresponding pipes. Make sure that
all pipes are laid with an incline of at least 1% in the flow direction, without sagging.
Important:
DIN 1986 must be observed, i.e.  inlet =  outlet (No cross-section constriction)!
5.3

Connecting the filter cleaning unit

To connect the filter cleaning unit included within the Optimax XXL Filter, the pressure pipe is connected
to the filter's 1" thread connection. Lay a 1" pipe (on-site) from the filter's thread connection via an empty
pipe to the supply point, and connect this to the existing pressure pipe outlet.
Important:
In order to ensure an optimal cleaning performance, please set the jet angle of the flat jet cone nozzles on
the sieve surface according to the throughflow.

The optimal throughflow is approx. 20 l/min (5 US gal./min) per cleaning nozzle

The minimum required pressure for the filter cleaning unit is 2.5 bar (36 psi)
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5.

Installation and assembly

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