Installing The Quick Coupler And Inlet Piping; Pre-Assembly Of The Stvbvfk - Hunter STK-1 Instrucciones De Instalación

INSTallaTIoN INSTruCTIoNS for huNTEr STK-2
Prior to attaching the VA swing join to the inlet piping, all pivots
should be checked to make sure they will provide the needed
movement to allow alignment of the rotor to the hole in the
enclosure's cover. The goal is to have each pivot threaded in as
far as it can while still retaining the needed movement. The first
pivot at the inlet of the swing joint is positioned vertically and
provides the side-to-side articulation. The remaining pivot points
provide the up and down plus forward and backward articulation.
For future service considerations, it is also desirable that the rotor,
valve assembly and swing joint assembly can be raised vertically
out of the enclosure while still attached at the inlet. Test the swing
to confirm there is adequate movement to bring the swing joint
vertically up and out of the enclosure. Next, prime, glue and attach
the VA swing joint to the inlet piping.
noTE: The supply piping to the VA swing joint
must be 2" minimum from mainline through to
the VA swing joint.

Installing the Quick Coupler and Inlet Piping

Run Quick coupler supply line to the appropriate location outlined
above. Connect 1" sch. 80 piping vertically and attach Quick
Coupler with appropriate fittings making sure the quick coupler's
upper surface is as close to the underside of the enclosure as
possible. Confirm location aligns with quick coupler access hole in
the enclosure's cover. Next, stake and band quick coupler and inlet
piping per specification.
18
noTE: Care needs to be taken to ensure the
rebar stake does not penetrate subsurface
piping or irrigation mainline.

Pre-assembly of the STVbVfK

It is advisable to pre-assembly the STVBVFK (valve, ball-valve and
fitting kit) prior to installing the assembly to the swing joint. The
kit includes a 1½" Hunter ICV control valve with NPT threads, a
1½" slip ball-valve rated for 235psi and, three connecting fittings.
A fourth fitting, a 1½" elbow with Acme threads (sold separately),
adapts the STVBVFK to the specific rotor used on the project.
first, note the flow direction arrows on the ball-valve. Next prime,
glue and attach the ball-valve's inlet side to the white Acme x Slip
fitting.
Second, wrap Teflon tape to the NPT threads on the gray NPT x Slip
fitting. Next, wrap Teflon tape to the NPT threads on the white NPT
x Acme fitting. Acme fittings have the black o-ring.
Third, note the flow direction arrows on the ICV valve. Next,
assemble the gray NPT threaded fitting to the inlet side of the ICV
valve. Next, assemble the white NPT threaded fitting to the outlet
side of the ICV valve.
fourth, note the flow direction of the ball-valve and ICV valve. Next,
prime, glue and attach the inlet side of the ICV valve (gray slip
connector fitting) to the outlet side of the ball-valve. Make sure to
align both so that the ball-valve and ICV valve are aligned vertically.
fifth, attach the Acme elbow fitting (sold separately) to the Acme
ENG