Installation; Mounting; Fluid Connections - Nordson A7A Customer Product Manual

Installation

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Figure 3 Typical Circulating System
1. Pump
2. Heater
3. Filter
4. Solenoid valve

Mounting

Fluid Connections

E 2019 Nordson Corporation
A7A Single and Dual Automatic Airless Spray Guns
WARNING: Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
Figure 3 shows a typical coating system installation.
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8
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5. Air regulator
6. A7A gun
7. Ball valves
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Slide a 13-mm ( / -in.) round mounting bar through the hole in the mounting
2
block, orient the gun as desired, and tighten the square head screw.
WARNING: In the fluid supply line, install an approved pressure relief
device set to the lowest maximum working pressure of all system
components. The fluid hoses must have a minimum burst pressure greater
than the pressure relief device setting.
CAUTION: Do not overtighten the fluid fittings. You can strip the threads in
the gun body.
Apply pipe thread adhesive (shipped with the gun) to the two fluid fittings
and install them in the gun body. If your system is dead-ended
(non-circulating), install one fitting and the
the gun. Connect the fluid supply and return hoses to the fluid fittings.
Either fitting can be used for supply or return.
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2
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8. Circulation valve
9. Drain off rod
10. Coating supply
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/ -in. NPT plug furnished with
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7
4 5
1300452A
Part 1072640A