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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277 Service Fax: 317-885-8683
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
4.0 BASIC FUNCTION AND OPERATION
4.1 HOW AN ADVANTAGE TROOPER WORKS
A.
The reason that water leaks out from inside of anything is because
the pressure of the water has overcome the pressure of the air
holding it in. If you had a small hole on the hose for example, and
the pressure of the air pushing in on it was strong enough, it would
keep the water inside the hose. Since it is impossible to increase
the pressure of the atmosphere, an ADVANTAGE TROOPER
decreases the pressure of the water to the point where the air holds
the water in.
B.
There are three factors involved in creating or controlling leaks:
incoming water pressure, atmospheric pressure and outgoing
pressure. The available draw or vacuum capability of the pump,
outgoing pressure, remains constant. Atmospheric pressure also
remains constant. Therefore, the control we have for stopping
leaks is the incoming pressure. The pressure regulator inside
the ADVANTAGE TROOPER is used to limit the incoming water
pressure to the leak.
C.
When using an ADVANTAGE TROOPER, the water is pulled
through a mold to lower pressure. In all other circulating systems,
the water is pushed through, which increases pressure.
D.
Regulating the flow to a mold does not necessarily reduce the
flow when using an ADVANTAGE TROOPER. Because the
ADVANTAGE TROOPER draws a vacuum on the ‘FROM MOLD’
line, the over all pressure drop remains the same or even increases.
This means that in many cases there is no loss of cooling flow and
in some cases it may even be improved.
E. The
ADVANTAGE TROOPER unit uses a progressive cavity pump
because it can pump both water and any air that may be drawn in
from a leak. The air is then vented from the system before the water
leaves the unit.
Positive displacement pump