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INSTallaTIoN INSTruCTIoNS for huNTEr STK-1
Synthetic Turf rotor and Enclosure System
The Hunter STK-1 synthetic turf rotor and enclosure system is a
special combination of products designed specifically to meet
the unique needs of irrigation on synthetic turf fields. Synthetic
turf fields are a non-serviceable surface, meaning they are not
easily excavated and restored to original condition without huge
expense and specialized procedures. As a result and to the extent
possible, all serviceable components of the irrigation system must
be accessible from the surface. The Hunter STK-1 makes installation
and adjustment straight-forward and flexible. The STK-1 also
provides easy access for the ongoing maintenance needs of the
end-user.
Setting the ST173026b Enclosure
The enclosure needs to be set per the installation specifications
provided by the Irrigation Consultant. It must rest upon a
compacted base material per the field specifications. If the
enclosure is to be set directly upon the gravel of the drainage
system, the gravel should be compacted and the enclosure set
upon six bricks for stabilization.
The elevation to grade of the enclosure must be precise and
is determined by the field and irrigation specification. In many
installations, the elevation for the enclosure is specified such that
the upper rim of the enclosure is level with the tack/glue board
that surrounds the field. The enclosure's elevation can also be
affected by the type of material, if any, that will be attached to
the enclosure's upper surface. This will sometimes be the field's
synthetic "carpet" or sometimes the adjacent running track material.
Some customers prefer no attachments to the covers stating, "If a
player is running towards the enclosure, I want them to see it and
therefore know to take corrective action."
With the STK-1, there is a direct and required relationship between
the location of the enclosure, the location of the incoming plumbing
and, the location and depth of the drainage system. In order for
the irrigation sprinkler (rotor) to be properly positioned within the
hole in the enclosure's cover, the swing joint's inlet piping must be
placed at the specified location and depth. In order for the quick
coupler valve to be accessible and functional once installed, the
quick coupler's supply pipe must be installed in the correct location
and the valve must be at the correct height within the enclosure.
In order for the enclosure to drain properly, it must have access to
the drainage system and, the drainage system must be lower in
elevation than the enclosure's base (26").
Enclosure Dimensions:
Upper Rim 20"x 33", Cover 17"x 30", Depth 26", Base 27"x 41"
Incoming Plumbing location
The swing joint's inlet piping location and depth is critical. This location
and depth in conjunction with the special multi-axis vertical alignment
"VA" swing joint allows the rotor to be placed and leveled within
the hole in the enclosure's cover. Use the Top View of the following
installation detail as a reference. The bottom of the Top View drawing
represents the on-field side of the enclosure and the top of the
drawing represents the off-field side. Next, note that the swing joint
inlet is located along the centerline between the two enclosure covers
(#19). This location is approximately 5" from the inside edge of the
enclosure's upper exposed rim. The swing joint's inlet piping must
not be any closer to the rotor hole in the cover than this location. The
swing joint's inlet can move away from the rotor opening to the point
where it is centered between the two covers on the enclosure.
The quick coupler inlet piping must align with the quick coupler
access hole in the enclosure's cover. Use the Top View illustration
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