Graco 332092B User Manual
Instructions
332092B
EN
Dispense Valve
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Dispensit 1230
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WELCOME
Thank you for purchasing a Dispensit 1230 Series Positive Displacement Dispense Valve. This manual
explains the steps for proper setup, operation, and maintenance of the dispense valve.
This manual is an overview of the valve and how it works. You have also received (where applicable),
other manufacturer’s guides and technical references that detail the specifics of their particular products
which have been integrated into the dispense valve. The information in this manual is designed to help you
get the most use out of your dispense valve.
This manual is written with the ease of understanding for not only you, but maintenance personnel, and
management. Support tasks and procedures in this manual require that you have some mechanical
knowledge and a “working “ knowledge of basic pneumatics. If you do not have this basic knowledge,
obtain the proper training before attempting any of the tasks and/or procedures detailed in this manual.
Only properly trained, authorized personnel should operate or maintain this dispense valve.
It is important that you keep this manual in an easily accessible place for future reference.
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Table of Contents
Introduction .................................................................................................................................................... 4
Safety Precautions .......................................................................................................................................... 5
Main Components .......................................................................................................................................... 7
Valve Operation ............................................................................................................................................. 8
Optional Equipment........................................................................................................................................ 9
Valve Disassembly ........................................................................................................................................10
Subassemblies ...............................................................................................................................................14
Valve Assembly ............................................................................................................................................16
Operation Adjustments ..................................................................................................................................17
Troubleshooting .............................................................................................................................................17
Glossary of Terms .........................................................................................................................................19
Graco Standard Warranty ..............................................................................................................................20
Graco Information .........................................................................................................................................20
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CAUTION
To avoid damage to property, equipment, and/or personal
injury, please adhere to common safety practices. Failure
to do so may result in such damage or injury.
Introduction
This manual is for the 1230 Series Positive Displacement Dispense Valves, designed and manufactured by
Dispensit. This manual addresses the setup, operation, maintenance and adjustment of all aspects of the
valve, which will be useful for management, support technicians as well as the operator.
Its design also permits quick change out of the wetted module (wet head), allowing the drive module
(power head) to remain permanently fixed to its mounting, assuring a minimal downtime for material
change or replacement. The valve has a linear shot adjustment scale which provides volumetric
consistency in shot applications.
The 1230, made of corrosion resistant plastic and has either plastic or stainless steel metering rods and is
offered in three different Metering Rod sizes and volume output ranges. The .125 valve has a dispense
range of 0.010cc’s-0.126cc’s, the .188 valve has a dispense range of 0.022cc’s-0.283cc’s, and the .250
valve has a dispense range of 0.040cc’s-0.503cc’s.
The 1230 will allow the operator to place a precise amount of material on a specific part with excellent
repeatability, with cycle times as fast as 1.5 shots per second (depending on the application). This valve is
capable of handling pressures, up to 60psi (.41MPa), and non-metallic material viscosities ranging from
water type materials to medium viscosity fluxes. Material can be supplied by means of different types of
material transfer systems, ranging from low-pressure syringes or cartridges to 55-Gallon transfer pump
systems.
The 1230’s modular design and lightweight allow it to easily integrate into a variety of applications. The
valve is most commonly mounted vertically (with two 8-32 machine screws) however; it may be necessary
to mount it at other angles, depending on the application. This valve has a variety of uses ranging from a
simple bench top dispense system to robotic cells or conveyorized systems. This valve can dispense
through a single luer lock needle, or a custom designed needle block configuration.
NOTE: Mounting the valve vertically will enable the use of the wet cups, while mounting the valve on an
angle will disable the use of the wet cups.
Safety considerations are an extremely important element in the proper operation of this dispense valve.
Actively thinking about the safety of yourself and others, as well as the condition of the equipment, is of
most importance. Regard all warnings, cautions, and notices that are listed (on the left margins) throughout
this manual and in any accompanying literature.
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Snuff-back can be monitored with DV
MODE in AUTO, but must be
adjusted with DV MODE in OPEN
Caution
Make sure EMERGENCY STOP is
locked in before manually aligning
the ratio block to the ratio beam.
WARNING
DO NOT OPERATE THIS
MACHINE WITH
GUARD(S) DETACHED
DANGER
UNPLUG MACHINE
BEFORE OPENING
ENCLOSURE
WARNING
OVERCURRENT
PROTECTION
PROVIDED AT MACHINE
SUPPLY TERMINALS
NOTICE
WEAR EAR
PROTECTION
CAUTION
WEAR EYE
PROTECTION
CAUTION
Safety Precautions
This manual provides installation, operation, and maintenance instructions for Graco Ohio Inc. meter, mix, and
dispense machines. Read this manual before you install and operate your machine. Use your machine only as directed.
Safety Terms within our manuals
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment, and/or process. Warnings are given where failure to observe the instruction could result in injury or death to
people.
Some examples follow.
Safety Labeling on our machinery
All our machines carry the following safety labels wherever necessary:
• Danger Labels indicate an imminently hazardous situation, which, if not avoided, could result in death or serious
injury.
• Warning Labels indicate potentially hazardous situations which, if not avoided, could result in death or serious
injury.
• Caution Labels indicate an unsafe practice that may result in moderate or minor injury.
• Notice Labels state a company policy. Some examples are:
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Safety Precautions (Cont’d)
Dispensit recommends, as many companies require, that the primary air source to the dispense valve be
disconnected before being serviced. It is the users responsibility to ensure that the primary air pressure is
OFF. If the valve is controlled by an electrical system, (e.g., solenoid valve or PLC), the electrical system
should be placed in a position where the air supply to the dispense valve is OFF.
All personnel working with this system should observe the following precautionary guidelines:
• Abide by all OSHA and NEC safety guidelines
• All operators, at minimum, must have proper instruction and practice in the use of pneumatics
• All maintenance personnel must have proper instruction and practice in the proper operation of
this dispense valve.
• Observe all company safety guidelines pertaining to dispensing equipment
• Remove watches, rings, and all other jewelry
• If the unit is to be moved or serviced, wear protective eyewear and, depending on the material
used, any necessary protective clothing (e.g., gloves, long sleeved shirt or smock).
CAUTION: It is the users responsibility to ensure that the primary air pressure is OFF before servicing the
dispense valve.
CAUTION: Always be alert of other potential hazards within your work area.
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AND ACCESS TO THE
WET CUP FOR FILLING
Main Components
As figure 2 shows, the main components of the 1230 dispense valve are easily recognized. For more valve
specifics, refer to p11-1, .
Figure 2. Main Components: The main components of the 1230 dispense valve are easily recognizable and
accessible. Detailed drawings can be found in the back of this manual.
The 1230 standard valve components are manufactured of high quality and wear resistant plastic, and the
metering rod is manufactured of high quality stainless steel. Other materials are available for different
material compatibilities. Refer to the, “Optional Equipment” section, for a complete list of available
component materials.
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