4646
Stripe Hog Systems
Filtered air ows out of the lter canister through
the blower and out the silencer. A stainless steel
cuto ball valve in the vacuum line at the top of
the debris tank automatically shuts o the vacuum
ow if the tank becomes full, protecting the blower
and other vacuum system components.
Consistent and proper airow is critical to main-
taining optimum vacuum pressure. The recom-
mended vacuum gauge reading is between -5
(Hg) and -7(Hg). Maximum vacuum of -7 (Hg) is
typically achieved at 1400 RPM (Maximum engine
operating RPM). Vacuum pressure is displayed
and monitored by the operator on the PLC display
located in the cab.
To prevent damage to the vacuum system there
are two vacuum safety relief valves called Kunkle
valves that open if there is insucient airow and
consequently excess vacuum in the vacuum sys-
tem. These valves are preset at the factory and
equipped with a data tag that displays the activa-
tion preset pressure in inches of mercury (Hg).
One Kunkle valve is located on top of the debris
tank and the other is on the vacuum lter canister.
For proper operation, these safety valves should
be checked and maintained periodically (Refer
to the maintenance matrix in the maintenance
section of this manual). A full debris tank, debris
buildup, kinks, clogs or leaks in the system will
cause a reduction in airow at the blasting heads,
reducing the eciency of operation or causing
operations to stop completely.
Vacuum Canister Safety Relief Valve (Kunkle Valve)Debris Tank Safety Relief Valve (Kunkle Valve)
Stainless Steel Vacuum Cuto Ball Valve
PLC Screen Showing Vacuum Pressure Gauge
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