AEC VacTrac Series Conveying Systems - Manual (Page 63)

VacTrac™ Series Conveying Systems Page 63
Mechanical Components WH2-605A.4
If mounted in the vacuum line, connect the sequence-T valve to a
60 psi to 80 psi (414 kPa to 552 kPa) source of clean, dry,
lubricated compressed air.
Run a 3 /
8
” (9 mm) branch line off the plant air main to the sequence
T valves in your system. Install a 3 /
8
” (9 mm) x 1 /
8
” (3 mm) tee in
the up position near each receiver.
Connect compressed air to the normally open port on top of the
sequence-T valve solenoid valve with a
1 /
8
” (approx. 3 mm) pipe
nipple. Connect the common port to the sequence-T valve using
1 /
4
” (6 mm) poly tube and connectors. See the following for more
information.
Your 3 /
8
” (9 mm) branch supply line should include:
• A shutoff valve for
ON/OFF control.
• An air filter/pressure regulator with a gauge for pressure
control.
• Mini-lubricators located at each vacuum receiver.
Figure 28
Vacuum Receiver Sequence T-Valve Compressed Air Connections
TO CONTROL
WIRING
(1)
N. C.
(2)
COM.
(3)
N. O.
(1) NORMALLY CLOSED = EXHAUST PORT
(2) COMMON = CONNECT TO VALVE
(3) NORMALLY OPEN = CONNECT TO AIR SUPPLY