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Operation
16 332089B
Operation
The operation of the 1092 metering valve is controlled
by an external source. If a 4104A Control Box was pur-
chased, see the 4104A Control Box manual for opera-
tion instructions.
Sequence of Operation
Step 1: Reload
• Spool shifts to the right
• Material feed inlet is opened
• Material is transferred into the metering chambers
by a pressurized feed system
• Outlet port is blocked
• Metering rod is retracted to a precise position deter-
mining the volume of each mater ial
Step 2: Shift
• The balanced spool shifts to the dispense position
• Material path to the needle is opened
• Material feed inlet port is blocked
• Metering rod remains in the retracted position
Step 3: Dispense
• Metering rod extends
• Material is dispensed from the metering chamber
into the needle
Upon completion of the dispense stroke, the metering
rod and spool shifts back to the reload position.