TEFEN
TEFEN Advanced Plastic Solutions.
Connection of the Injector to a 2" threaded line
Note the direction of the water flow. Place the injector so that the arrow stamped on the body of
the injector and the red arrow on central sticker point in the direction of the water flow. Connect
the injector using the plastic couplings.
Connection of the Injector to a
mm. polyethylene line
63
Note the direction of the water flow. Place the injector so that the arrow stamped on the body of
the injector and the red arrow point in the direction of the water flow. Make sure that the ends of
the entry pipe and the exit pipe are cut straight and that the end is in the shape of a rounded cone.
The distance between the entry end and the exit ends should be about 22 cm (8.8").
Remove the 63 mm nut from the injector and the white
ring and slide them onto the pipe at a short distance
from the end. Check that accessory seal 63 and that
the sealing 63 fixture closes the unit from outside (1).
Insert the pipe into the entry opening or exit opening
in accordance with the direction indicated and push it
so that the pipe penetrates passes the seal and stops
at the end of the track.
To facilitate the penetration of the pipe spread a little
silicone grease on the end of the tube before
inserting it. Push the white ring in until it reaches the
thread (2). Close the nut and tighten securely.
In the same way connect the injector to the other pipe.
Water with high particle content
(ex.: 120 mesh - 130 microns depending on your water quality) water filter must
be installed prior to the injector (see accessories), if a filter is not installed
Abrasive substances will cause the injector to deteriorate prematurely.
Installing the injector on an irrigation line
It is recommended to fit a main valve (1) at the beginning of the line as well as a backflow
prevention valve (3). On a drinking water line, according to local regulations, it is obligatory to
install a backflow prevention valve to prevent entry of chemicals into the drinking water. Then as
shown in the din the diagram the following have to be installed: A pressure reducer (4) to
protect the injector from excess pressure, a filter (2) of at least 120 mesh (130 micron), a valve
(6) before entry to the injector, vacuum valve (7) to prevent siphoning when the injector is not
operating, and valves to the feed lines have then to be installed. It is advisable to add a bypass
pipe through which the water can flow to irrigation without fertilizer or when it is required to
dismantle the injector.
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