User guide
Dow Building Solutions
3. Verify that the nitrogen cylinder pressure using the center
gauge of the nitrogen regulator assembly. The system WILL
NOT operate efficiently if the pressure falls below 500 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 (120160psi – Do not go
over 225psi) (see section 12).
If a hissing sound occurs, further tighten the yellow/red-
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 Dow Sales
Representative.
5. Turn the right regulator stem clockwise to the proper
pressure setting of the “B” tank (120160psi – Do not
go over 225psi) (see section 12).
If a hissing sound occurs, further tighten the yellow/blue-
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 Dow 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.
9. Slowly turn on the in-line 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.
10. Remove the used nozzle by pushing down the nozzle ejector.
8.2 System Purging and Testing
1. 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.
2. Dispense chemicals in an appropriate container.
This is to verify proper chemical flow.
3. Clean any chemical from the INSTAFLO™ Gun face
using a rag or paper towel.
4. Insert an unused nozzle with the key slot down. Push
in firmly until the nozzle ejector is seated over the
back rim of the nozzle.
5. Dispense foam to verify proper chemical mixing.
If improper mixing or poor foam quality, refer to the
Troubleshooting section, Section 10 of this manual.
Section 9
Tank Change-over
1. 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.
2. Putting on a fresh set of tanks is essentially the same process
as the initial start-up. One big difference is that the lines have
chemicals in them. If exposed to the atmosphere for more
than a few minutes, the A Side line will become plugged. So
keep the lines hooked up to the empty tanks until you are
ready to put on the fresh set.
3. Double check that the nitrogen tank is above 500 PSI.
4. Prep the new tanks as outlined above right to the point of
hooking up lines.
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