AEC VacTrac Series Conveying Systems - Manual (Page 61)

VacTrac™ Series Conveying Systems Page 61
Mechanical Components WH2-605A.4
3-23 Making VacTrac Pump Compressed Air
Connections
Connect the vacuum pump to a minimum of 60 psi to 80 psi
(414 kPa to 552 kPa) source of clean, dry, lightly lubricated
compressed air. Make the
1 /
8
” NPT (3 mm) connection at the
solenoid valve on the pump package.
Your compressed air supply piping should include:
• A shutoff valve for
ON / OFF control.
• A pressure regulator with gauge.
• An air filter/lubricator.
3-24 Connecting Vacuum Receivers with Atmospheric
Valve Compressed Air Lines
See Figure 11 on Page 26 for an illustration of a typical
atmospheric valve. Most VacTrac systems use atmospheric valves
to direct system vacuum into the vacuum hoppers. You should be
able to locate the atmospheric valve in one of three places:
• Installed on top of TF or VF Series vacuum receivers
• Installed in the vacuum header on SR Series vacuum
receivers
Connect the atmospheric valve to 60 psi to 80 psi (414 kPa to 552
kPa) source of clean, dry, lightly lubricated compressed air.
Run a 3 /
8
” (9 mm) branch line off the plant air main to supply the
vacuum hoppers in your system. Install a 3 /
8
” (9 mm) x 1 /
8
” (3 mm)
tee in the UP position near each hopper.
Connect compressed air to the normally closed port on the
atmospheric valve solenoid valve with a
1 /
8
” (approx. 3 mm) pipe
nipple. Connect the common port to the atmospheric valve using
1 /
4
” (6 mm) poly tube and connectors. See the following page.