dymax 400 Manual de usuario
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Model 400 Dispensing Valve User Guide
About Dymax
UV/Visible light-curable adhesives. Systems for light curing, fluid dispensing, and fluid packaging.
Dymax manufactures industrial adhesives, light-curable adhesives, epoxy resins, cyanoacrylates, and activator-
cured adhesives. We also manufacture a complete line of manual fluid dispensing systems, automatic fluid
dispensing systems, and light-curing systems. Light-curing systems include LED light sources, spot, flood, and
conveyor systems designed for compatibility and high performance with Dymax adhesives.
Dymax adhesives and light-curing systems optimize the speed of automated assembly, allow for 100% in-line
inspection, and increase throughput. System designs enable stand-alone configuration or integration into your
existing assembly line.
Please note that most dispensing and curing system applications are unique. Dymax does not warrant the fitness
of the product for the intended application. Any warranty applicable to the product, its application, and use is
strictly limited to that contained in the Dymax standard Conditions of Sale. Dymax recommends that any
intended application be evaluated and tested by the user to ensure that desired performance criteria are
satisfied. Dymax is willing to assist users in their performance testing and evaluation. Data sheets are available for
valve controllers or pressure pots upon request.
Model 400 Dispensing Valve User Guide
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Contents
Contents............................................................................................................... 3
Introduction......................................................................................................... 4
Introduction to the User Guide.........................................................................4
Where to Get Help ............................................................................................4
Safety................................................................................................................... 4
General Safety Considerations..........................................................................5
Specific Safety Considerations ..........................................................................5
Product Overview................................................................................................. 5
Description of the Model 400 Dispensing Valve ...............................................5
Assembly and Setup ............................................................................................. 7
Unpacking and Inspecting Your Shipment ........................................................7
Parts Included in the Model 400 Dispensing Valve ...........................................7
Operation............................................................................................................. 9
Start Up.............................................................................................................9
Dispense............................................................................................................9
Adjusting Material Flow ..................................................................................10
Shutdown........................................................................................................10
Cleaning and Maintenance................................................................................. 10
Replacing the Needle Seat ..............................................................................10
Troubleshooting................................................................................................. 11
Spare Parts and Accessories ............................................................................... 12
Specifications ..................................................................................................... 14
Index.................................................................................................................. 15
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Model 400 Dispensing Valve User Guide
Introduction
Introduction to the User Guide
This guide describes how to assemble, use, and maintain the Dymax Model 400
handheld needle valve safely and efficiently.
Intended Audience
Dymax prepared this user guide for experienced process engineers, maintenance
technicians, and manufacturing personnel. If you are new to pneumatically operated
fluid dispensing equipment and do not understand the instructions, contact Dymax
Application Engineering to answer your questions before using the equipment.
Where to Get Help
Dymax Customer Support and Application Engineering teams are available in the United
States, Monday through Friday, from 8:00 a.m. to 5:30 p.m. Eastern Standard Time. You
locations can be found on the back cover of this user guide.
Additional resources are available to ensure a trouble-free experience with our
products:
◼Detailed product information on www.dymax.com
◼Dymax adhesive Product Data Sheets (PDS) on our website
◼Safety Data Sheets (SDS) provided with shipments of Dymax adhesives
Safety
WARNING! If you use this fluid dispensing equipment without first
reading and understanding the information in this guide, personal injury can
result from the uncontrolled release of high-pressure gas, injection injury, or
exposure to chemicals. To reduce the risk of injury, read and understand this
guide before assembling and using Dymax fluid dispensing equipment.
Model 400 Dispensing Valve User Guide
5
General Safety Considerations
All users of Dymax fluid dispensing equipment should read and understand the user
guide before assembling and using the equipment.
To learn about the safe handling and use of dispensing fluids, obtain and read the SDS
for each fluid before using it. Dymax includes an SDS with each adhesive sold. SDS for
Dymax products can be requested through the Dymax website.
Specific Safety Considerations
Using Safe Operating Pressures
Pressurizing the components in the dispensing system beyond the maximum
recommended pressure can result in the rupturing of components and serious personal
injury. To minimize the risk of rupturing components and injury, do not exceed the
maximum operating pressure of the components in your fluid dispensing system (see
system specifications on page 13).
Preventing Injection Injury
Discharging fluids or compressed air with a dispensing tip against your skin can cause
very serious injection injury. To minimize the risk of injection injury, do not place the
dispensing tip in contact with your skin.
Product Overview
Description of the Model 400 Dispensing Valve
The Model 400 handheld, pneumatic needle valve is designed to deliver precise volumes
of low- to medium-viscosity fluids. Air pressure through the valve retracts the needle
assembly from the seat allowing fluid to flow from the valve fluid inlet to the dispensing
tip. When the air pressure is eliminated, the spring to returns the needle back to its
position, closing the fluid path and ending the dispense cycle. The valve also features a
flow adjustment knob which allows for fine-tuning of the dispense volume, ensuring
precise and consistent deposits. The Model 400 is ideally suited for a wide range of
applications including dispensing cyanoacrylates, inks, and UV light-curable adhesives.
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Model 400 Dispensing Valve User Guide
Figure 1. Model 400 Component Diagram
Flow Adjustment Knob
Air In
Quick Connect Fitting,
Fits 5/32" [4 mm] Tubing
Material In
Fits 1/4" [6.35 mm] Tubing
Luer Adapter
Model 400 Dispensing Valve User Guide
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Assembly and Setup
Unpacking and Inspecting Your Shipment
When your Model 400 dispensing valve arrives, inspect the boxes and notify the shipper
of any damage immediately.
Open each box and check for equipment damage. If parts are damaged, notify the
shipper and submit a claim for the damaged parts. Contact Dymax so that new parts can
be shipped to you immediately.
Check that the parts included in your order match those listed below. If parts are
missing, contact your local Dymax representative or Dymax Customer Support to resolve
the problem.
Parts Included in the Model 400 Dispensing Valve
■Model 400 needle valve
■Model 400 user guide
■Assorted dispensing tip kit
Figure 2. Model 400 Handheld Needle Valve Unpacking Diagram
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Model 400 Dispensing Valve User Guide
System Interconnect
Air
The Model 400 needle valve requires a Model 345 valve controller or a 2-position, 4-way
air solenoid valve to actuate the air section. The valve should be operated with clean,
dry air between 80-100 psi [5.5 - 7 bar]. One #10-32 threaded air port is located on the
valve. This port is used to open the valve when air pressure is applied and close the
valve when air pressure is relieved. A quick-connect air fitting is typically supplied with
the Model 400 to fit 0.16" [4 mm] tubing.
Fluid
The Model 400 needle valve requires a material reservoir or pressure tank to draw
material from. The material reservoir should be connected to the Model 400 valve
through the 1/8" [3.2 mm] NPT port located on the valve.
Figure 2. Valve Interconnect Diagram
Valve Controller or
Solenoid Valve
(DVC-345 Shown)
Air Filter Regulator
with Dump Valve
(Recommended)
Material Reservoir
(20 oz Cartridge
Reservoir Shown)
Material In
Air In
Model 400 Valve
Air Supply
Precision Air Regulator
(Recommended)
Model 400 Dispensing Valve User Guide
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Operation
Start Up
At the beginning of the day or a shift, it is necessary to properly start the Model 400 to
begin normal operation. To start the dispensing valve, follow the instructions below.
1. Apply air pressure by turning on the pressure to the Controller.
2. Remove the Luer Lock Plug from the Luer Adapter and discard.
3. Place a new Dispense Tip onto the Luer Adapter.
4. Apply fluid pressure to the valve by turning on the pressure to the Material
Reservoir.
5. Cycle the Valve to the open position to bleed all air that may have become
trapped when changing the Dispense Tip.
Note: Operating air pressure must be applied before turning on fluid pressure.
Dispense
If any problems are encountered, refer to the troubleshooting section of this manual or
call Dymax Customer Support.
1. Plumb the valve as outlined in the setup procedures.
2. Regulate the air pressure to between 80-100 psi (5.5 –7 bar).
3. Pressurize the Fluid Delivery System.
4. Cycle the valve to the open position to purge. Fluid should begin to dispense
from the tip of the valve.
5. Check the Fluid Connection for leaks. If the valve is leaking or dripping, refer
to the troubleshooting section of this manual.
6. Adjust the material pressure until the desired flow rate is achieved.
7. Thread a Dispense Tip onto the Luer Adapter of the Valve to fine tune the flow
rate of the fluid.
Note: Using a smaller gauge Dispense Tip will reduce the flow rate while using
a larger gauge Dispense Tip will increase the flow rate.
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Model 400 Dispensing Valve User Guide
Adjusting Material Flow
Material flow can be easily adjusted by turning the Flow Adjustment Knob on the top of
the valve. To reduce material flow, turn the Flow Adjustment Knob clockwise. To
increase material flow, turn the Flow Adjustment Knob counterclockwise.
Figure 3. Material Flow Adjustment
Shutdown
At the end of the day or shift, it is necessary to shut down the Model 400 dispensing
system properly in order to keep material from curing inside the dispensing valve.
1. Remove the disposable Dispense Tip from the Luer Adapter and discard.
2. Thread a Luer Lock Plug onto the Luer Adapter.
3. Relieve fluid pressure on the valve by turning off air pressure at the Material
Reservoir.
4. Relieve the air pressure operating the valve by turning off the air pressure to
the Controller.
Cleaning and Maintenance
Replacing the Needle Seat
1. Unthread the Luer Adapter from the valve.
2. Remove the Needle Seat O-Ring.
3. Insert a new O-Ring.
4. Reinstall the Luer Adapter on the valve.
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