Hog Technologies Stripe Hog SK2000, Руководство по эксплуатации

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Stripe Hog Systems
CAUTION
T H E A U X I L I A RY E N G I N E M U S T B E S H U T D O W N T O
DISENGAGE AND STOP THE UHP PUMP FROM ROTATING.
IF LOW CHARGE WATER PRESSURE IS INDICATED OR
A SERIOUS FAILURE OCCURS IN THE UHP PUMP OR
HIGH PRESSURE SYSTEM, USE THE EMERGENCY STOP
BUTTON ON THE AUXILIARY ENGINE CONTROL PANEL TO
IMMEDIATELY SHUTDOWN THE UHP PUMP AND WATER
BLASTING SYSTEM.
Maximum operating pressure for the UHP pump of
40,000 psi (2,758 Bar) @ 5 gallons (19 Liters) per
minute is usually achieved at or near maximum
engine RPM (Typically 2350 RPM.) Water pressure
is monitored by the high pressure gauge on the
pump and a digital gauge in the switch panel. High
pressure is controlled by the RPM of the engine.
Since engine RPM also controls the level of vacuum
in the debris recovery system, using a spray bar
and nozzles that require near maximum engine
RPM to achieve the desire blasting pressure is
beneficial for developing and maintaining proper
vacuum for the debris recovery system.
The gallons per minute (GPM) produced by the
Ultra-High Pressure pump is controlled by pump
RPM, plunger diameter, length of stroke and num-
ber of plungers. Once the Ultra-High Pressure
pump is engaged, it continually displaces water
provided by the charge water pump. The charge
water travels through the low pressure side of the
manifold of the Ultra-High Pressure pump, then
through a set of 3 univalves into the 3 stuffing
boxes. The plungers then force the water back
through the high pressure side of the univalves
and manifold. These univalves are critical to the
operation of the Ultra-High Pressure pump as they
facilitate two functions at the same time. They al-
low the low pressure water from the charge water
pump to enter the stuffing box and the Ultra-High
Pressure water to flow into the high pressure side
of the manifold. Once the water is forced back
through the manifold, it is directed out to the
blasting head or back to the clean water tank by
the Dump Valve. Without these valves it would be
impossible to separate the high and low pressure
water from each other. Hog Technologies recom-
mends that you keep 3 fully serviced univalves
in your spare parts system to prevent downtime.
Typical Dump Valve
UHP Pump Pressure Gauge
Digital High Pressure Gauge