Chemical Hose Installation; System Pressurization - DuPont FROTH-PAK Manual

3.4 Chemical Hose Installation

1 . Verify that the chemical tank valves are closed . The
handle should be perpendicular to the valve . Remove
the chemical valve plugs from the "A" and "B" tanks and
place the plugs on top of the tank .
2 . Carefully remove all of the vaseline in the "A" chemical
tank valve .
3 . Remove the chemical filters from the canvas bags on top
of each tank . Verify that the filter and the cartridge are
free by shaking the filter until you hear a clicking sound .
NOTE: Air blown into end in the direction of arrow will pass
freely through the filter .
4 . Connect a chemical filter to each tank valve with the
filter arrow pointing away from each tank . The arrow
represents the chemical flow . Tighten the filters with an
adjustable wrench . The filter prevents chemical from
flowing back into the tank .
5 . Take the on-off valves with the swivel ends and connect
them to each tank filter . Tighten the connections with an
adjustable wrench .
6 . Uncoil the chemical lines . Tape them together every
few feet with tape .
7 . Connect the "A" labeled chemical hose to the "A" tank
on-off valve . Tighten the connection with an adjustable
wrench .
8 . Connect the other chemical hose to the "B" tank on-off
valve . Tighten the connection with an adjustable wrench .
9 . Connect an in-line on-off valve to the other end of each
chemical hose . Verify that the arrow on each valve points
away from the hose being connected – arrow indicates
chemical flow . Tighten each connection with two
adjustable wrenches .
10 . Connect the Gun/Hose Assembly to the in-line valve
of each hose, "A" labeled hose to "A" labeled hose, the
unlabeled hose to the unlabeled hose . Tighten each
connection using two adjustable wrenches .
Section 4
Start-up Procedure
DO NOT breathe vapor or spray . Proper PPE and ventilation
are required . See product SDS and Section 2 of this manual
for further information . Follow all precautions for product .

4.1 System Pressurization

1 . Verify that the valve stems on the regulator are backed
out and are freewheeling .
2 . Open the nitrogen bottle valve by turning the knob
on top of the cylinder counterclockwise . If a hissing
sound occurs, further tighten the nitrogen regulator
valve stem with an adjustable wrench .
3 . Verify the nitrogen cylinder pressure using the center
gauge of the nitrogen regulator assembly . The system
WILL NOT operate efficiently if the pressure falls below
1500 psi . If below 500 psi, replace the nitrogen cylinder .
4 . Turn the left regulator stem clockwise to the proper
pressure setting of the "A" tank (see section 12) . If a
hissing sound occurs, further tighten the yellow-coded
nitrogen line connection to the nitrogen regulator
assembly and/or the nitrogen intake valve connection
on the "A" tank using an adjustable wrench . If the left
gauge fails to indicate a pressure setting, contact your
DuPont Sales Representative .
5 . Turn the right regulator stem clockwise to the proper
pressure setting of the "B" tank (see section 12) . If a
hissing sound occurs, further tighten the yellow-coded
nitrogen line connection to the nitrogen regulator
assembly and/or the nitrogen intake valve connection
on the "B" tank using an adjustable wrench . If the right
gauge fails to indicate a pressure setting, contact your
DuPont Sales Representative .
6 . Slowly open the nitrogen intake valve of each tank .
The valve handles should be parallel with the
nitrogen lines .
7 . Slowly turn on the chemical valve of each tank . The
valve handles should be parallel to the chemical lines .
Verify that the filter connection of each tank is tight and
that no chemical leaks are present .
8 . Slowly turn on the on-off valves . The handles should
be parallel to the chemical lines . Verify that the
connections of each valve are tight and that no chemical
leaks are present .
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