CAUTION: For maximum performance and motor
life, do not allow pump motor to stall. Prolonged
stall conditions will cause motor to go into thermal
overload.
5.3.2 Flow Control Valve
The flow control valve [1] is an adjustable pressure-regulating
device mounted to the pump underneath the melt unit chassis. It is
adjusted from the lower right side of the melt unit, using the 1/4-
inch hex key supplied with the unit.
Adjust for the following conditions:
1. Maximum flow - low viscosity materials: from the full
clockwise setting, adjust 1/2 to one turn back
counterclockwise. This will prevent pressure surges when
system is valved open.
2. Maximum flow - high viscosity materials: adjust so pump will
start and run at normal speed when switched on with the
system valved shut.
3. Adjusting for lower flow rates: adjust for desired flow rate
when system is valved open.
!
1
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© Copyright Astro Packaging 2009 KB30, KB50 and KB100 Series Hot Melt Units 19600-159 Rev. A 04/09/09 15
© Copyright Astro Packaging 2009 KB30, KB50 and KB100 Series Hot Melt Units 19600-159 Rev. A 04/09/09 15
© Copyright Astro Packaging 2009 KB30, KB50 and KB100 Series Hot Melt Units 19600-159 Rev. A 04/09/09 23
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