AEC VacTrac Series Conveying Systems - Manual (Page 62)

Page 62 VacTrac™ Series Conveying Systems
WH2-605A.4 Mechanical Components
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.
Install a quick-disconnect fitting or a shutoff valve in the
compressed air piping leading to the vacuum receiver atmospheric
valve to speed receiver cover removal for cleanout or service.
Figure 27
Vacuum Receiver Atmospheric Valve Compressed Air Connections
TO CONTROL
WIRING
(1)
N. C.
(2)
COM.
(3)
N. O.
(1) NORMALLY CLOSED = CONNECT TO AIR SUPPLY
(2) COMMON = CONNECT TO VALVE
(3) NORMALLY OPEN = EXHAUST PORT
3-25 Connecting Vacuum Receivers with Sequence-T
Valve Compressed Air Lines
See Figure 12 on Page 27 for an illustration of a typical sequence-
T valve. Critical dried resin systems sometimes require sequence-T
valves to prevent drawing humid atmospheric air into the material
supply. Sequence-T valves are usually installed in the vacuum
header above the vacuum hoppers.
Note: The sequencing valve is located in the cover on SR Series
vacuum receivers if you selected the internal sequencing
valve option.