Spray Valve (Ball Valve); Formulation Filter And Orifice - Guardian 70ES Operator's Manual

SPRAY VALVE (Ball Valve)

The Guardian 70ES unlike its larger stable mates in the Guardian
line, does not utilize an insecticide pump to meter a chemical
formulation to the atomization nozzle but rather pulls or draws a
siphon from this specially designed nozzle. The nickel plated brass
ball valve is equipped with Viton® elastomeric seals and a stainless
steel ball for trouble free operation. The manual ball valve is a 2-
position (open/close) valve that when closed blocks the flow path
from the formulation tank to the atomization nozzle. When opened, the strong vacuum effect
from the siphoning nozzle pulls liquid into the nozzle for atomization.
A remote spray on/off option is available for the Guardian 70ES in the form
of a 12-volt electric solenoid valve which is installed in place of the manual
valve. Power to support this remote spray on/off option is drawn from a
12-volt source such as an accessory port or "cigarette lighter" port found
on many utility vehicles. A length of cable is supplied to the valve allowing
a driver to activate spray without having to physically be at the machine
and place the ball valve in the closed position. If this option is of interest to
you, contact your dealer, distributor or sales associate to find out more. To
install, first remove the ball valve from the nozzle. Then, using the brass
nipple fitting and some Teflon tape, attach the spray solenoid to the nozzle. Then connect the
switch spade terminals to the spray solenoid. It is not polar, so the spade terminals can go
either way.

FORMULATION FILTER AND ORIFICE

The chemical or formulation is drawn through this fitting to the
nozzle. Inside this fitting resides both an inline screen filter as well
as an orifice disk. The purpose of the orifice disk to limit the amount
of flow to the nozzle based on the product label and desired droplet
size. Refer to the table provided in this manual to select the
appropriate orifice disk for desired product and atomization
performance.
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