Advanced Ratio Adapter (7/8-14)
CUSTOMER PRODUCT MANUAL
COMPONENT MANUAL P/N: 7443516
ISSUED 10/2018
For parts and technical support, contact Global Business Services (GBS) at
(800) 433-9319, or contact your local Nordson Sealant Equipment Representative.
This document is subject to change without notice.
Please check with customer service for the latest version.
Nordson Sealant Equipment٠Wixom, Michigan٠U.S.A
Part 7442478 E2018 Nordson Corporation
Nordson Corporation welcomes requests for information, comments, and
inquiries about its products. General information about Nordson can be
found on the Internet using the following address:
http://www.nordson.com.
Notice
This is a Nordson Corporation publication which is protected by copyright.
Original copyright date 08/2016. No part of this document may be
photocopied, reproduced, or translated to another language without the
prior written consent of Nordson Corporation. The information contained
in this publication is subject to change without notice.
Trademarks
Nordson and the Nordson logo are registered trademarks of Nordson
Corporation.
All other trademarks are the property of their respective owners.
Table of Contents i
Part 7443516
E 2018 Nordson Corporation
Table of Contents
Safety 1.................................................
Qualified Personnel 1...................................
Intended Use 1.........................................
Regulations and Approvals 2.............................
Personal Safety 2.......................................
High−Pressure Fluids 3..................................
Fire Safety 4...........................................
Halogenated Hydrocarbon Solvent Hazards 4..............
Action in the Event of a Malfunction 5.....................
Disposal 5.............................................
Operation 5............................................
Description 6.............................................
Theory of Operation 7.....................................
Consumable Items And Component Cleaning 8...............
Consumable Items 8....................................
Component Cleaning 8..................................
Maintenance And Cleaning 9...............................
Installation 10.............................................
Ratio Sampling 11..........................................
Troubleshooting 14.........................................
Disassembly 15............................................
2−port 15...............................................
3−port 16...............................................
Parts 17..................................................
Using the Illustrated Parts List 17..........................
Customer Product Manual 17.............................
Advanced Ratio Adapter (For 2−Port Dispense Valves) 18.....
Advanced Ratio Adapter (For 2−Port Dispense Valves) 18..
Advanced Ratio Adapter (For 3−Port Dispense Valves) 19.....
Advanced Ratio Adapter (For 3−Port Dispense Valves) 19..
Advanced Ratio Adapter Kit 20............................
Advanced Ratio Adapter Dimensions 20....................
THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY.
Advanced Ratio Adapter (7/8−14) 1
Part 7443516
E 2018 Nordson Corporation
Advanced Ratio Adapter (7/8−14)
Safety
Read and follow these safety instructions. Task- and equipment-specific
warnings, cautions, and instructions are included in equipment
documentation where appropriate.
Make sure all equipment documentation, including these instructions, is
accessible to all persons operating or servicing equipment.
Qualified Personnel
SEquipment owners are responsible for making sure that NordsonR
equipment is installed, operated, and serviced by qualified personnel.
Qualified personnel are those employees or contractors who are trained
to safely perform their assigned tasks. They are familiar with all relevant
safety rules and regulations and are physically capable of performing
their assigned tasks.
SAllow only qualified personnel to perform the tasks outlined in this
manual.
Intended Use
Use of Nordson equipment in ways other than those described in the
documentation supplied with the equipment may result in injury to persons
or damage to property.
Some examples of unintended use of equipment include:
SUsing incompatible materials
SMaking unauthorized modifications
SRemoving or bypassing safety guards or interlocks
SUsing incompatible or damaged parts
SUsing unapproved auxiliary equipment
SOperating equipment in excess of maximum ratings
Advanced Ratio Adapter (7/8−14)
2
Part 7443516 E 2018 Nordson Corporation
Regulations and Approvals
Make sure all equipment is rated and approved for the environment in which
it is used. Nordson equipment warranties may be voided if instructions for
installation, operation, and service are not followed.
All phases of equipment installation must comply with all federal, state, and
local codes.
Personal Safety
To prevent injury, follow these instructions.
SSafety glasses are to be worn at all times while installing, servicing,
operating, or observing equipment. The sudden release of air or fluid
can cause damage to eyes.
SRelieve system and material pressure before disconnecting hoses.
SDo not operate equipment unless safety guards, doors, or covers are
intact and automatic interlocks are operating properly. Do not bypass or
disarm any safety devices.
SKeep clear of moving equipment. Before adjusting or servicing any
moving equipment, shut off the power supply and wait until the
equipment comes to a complete stop. Lock out power and secure the
equipment to prevent unexpected movement.
SRelieve (bleed off) hydraulic and pneumatic pressure before adjusting or
servicing pressurized systems or components. Disconnect, lock out, and
tag switches before servicing electrical equipment.
SOperating faulty electrostatic equipment is hazardous and can cause
electrocution, fire, or explosion. Make resistance checks part of your
periodic maintenance program.
SIf you receive even a slight electrical shock, shut down all electrical and
electrostatic equipment immediately. Do not restart the equipment until
the problem has been identified and corrected.
SObtain and read Safety Data Sheets (SDS) for all materials used. Follow
the manufacturer’s instructions regarding the safe handling and use of
materials. Use recommended personal protection devices.
SMake sure the dispensing area is adequately ventilated.
STo prevent injury, be aware of less-obvious dangers in the workplace
that often cannot be completely eliminated, such as hot surfaces, sharp
edges, energized electrical circuits, and moving parts that cannot be
enclosed or otherwise guarded for practical reasons.
Advanced Ratio Adapter (7/8−14) 3
Part 7443516
E 2018 Nordson Corporation
High−Pressure Fluids
High pressure fluids, unless they are safely contained, are extremely
hazardous. Always relieve fluid pressure before adjusting or servicing high
pressure equipment. A jet of high−pressure fluid can cut like a knife and
cause serious bodily injury, amputation, or death. Fluids penetrating the skin
can also cause toxic poisoning. If you suffer a fluid injection injury, seek
medical care immediately.
WARNING: Any injury caused by high pressure liquid can be serious. If you
are injured or even suspect an injury:
SGo to an emergency room immediately.
STell the doctor that you suspect an injection injury.
SInform medical staff regarding the type of material dispensed.
MEDICAL ALERT − AIRLESS SPRAY WOUNDS: NOTE TO A PHYSICIAN
Injection into the skin is a serious traumatic injury. It is important to treat the
injury surgically as soon as possible. Do not delay treatment to research
toxicity. Toxicity is a concern with some exotic coatings injected directly into
the bloodstream. Consultation with a plastic surgeon or a reconstructive
hand surgeon may be advisable. The seriousness of the wound depends on
where the injury is on the body, whether the substance hit something on its
way in and deflected causing more damage, and many other variables
including skin micro−flora residing in the plant or gun which are blasted into
the wound. If the injected material contains acrylic latex and titanium dioxide
which damages the tissue’s resistance to infection, bacterial growth will
flourish. The treatment that doctors recommend for an injection injury to the
hand includes immediate decompression of the closed vascular
compartments of the hand to release the underlying tissue distended by the
injection material, judicious wound debridement, and immediate antibiotic
treatment.
Advanced Ratio Adapter (7/8−14)
4
Part 7443516 E 2018 Nordson Corporation
Fire Safety
To avoid a fire or explosion, follow these instructions:
SShut down all equipment immediately if you notice static sparking or
arcing. Do not restart the equipment until the cause has been identified
and corrected.
SDo not smoke, weld, grind, or use open flames where flammable
materials are being used or stored.
SDo not heat materials to temperatures above those recommended by
the manufacturer. Make sure heat monitoring and limiting devices are
working properly.
SProvide adequate ventilation to prevent dangerous concentrations of
volatile materials or vapors. Refer to local codes or your SDS for
guidance.
SDo not disconnect live electrical circuits while working with flammable
materials. Shut off power at a disconnect switch first to prevent sparking.
SKnow where emergency stop buttons, shutoff valves, and fire
extinguishers are located. If a fire starts in a spray booth, immediately
shut off the spray system and exhaust fans.
SShutoff electrostatic power and ground the charging system before
adjusting, cleaning, or repairing electrostatic equipment.
SClean, maintain, test, and repair equipment according to the instructions
in your equipment documentation.
SUse only replacement parts that are designed for use with original
equipment. Contact your Nordson representative for parts information
and advice.
Halogenated Hydrocarbon Solvent Hazards
Do not use halogenated hydrocarbon solvents in a pressurized system that
contains aluminum components. Under pressure, these solvents can react
with aluminum and explode, causing injury, death, or property damage.
Halogenated hydrocarbon solvents contain one or more of the following
elements:
Element Symbol Prefix
Fluorine F “Fluoro−”
Chlorine Cl “Chloro−”
Bromine Br “Bromo−”
Iodine I “Iodo−”
Check your material SDS or contact your material supplier for more
information. If you must use halogenated hydrocarbon solvents, contact
your Nordson Sealant representative for information about compatible
Nordson Sealant Equipment components.
Advanced Ratio Adapter (7/8−14) 5
Part 7443516
E 2018 Nordson Corporation
Action in the Event of a Malfunction
If a system or any equipment in a system malfunctions, shut off the system
immediately and perform the following steps:
SDisconnect and lock out electrical power. Close pneumatic shutoff
valves and relieve pressure.
SIdentify the reason for the malfunction and correct it before restarting the
equipment.
Disposal
Dispose of equipment and material used in operation and servicing
according to federal, state, and local codes.
Operation
CAUTION:
SPrime/purge system prior to commencing system operation.
SRelieve air and material pressure when equipment is not in use for
prolonged periods of time. Do not allow pressure to remain static when
equipment is idle as this may cause material to pack and harden.
Advanced Ratio Adapter (7/8−14)
6
Part 7443516 E 2018 Nordson Corporation
Description
The Advanced Ratio Adapter is a device which attaches to the valve outlet of two or three port dispense
valves with ⅞−14 inch nose adapter threads. It serves to separate high and low volume material for the
collection and subsequent verification of weight ratio. The Advanced Ratio Adapter also has changeable
orifice screws to create back pressure closely simulating the pressure observed during the actual dispense
process where a disposable mixer is used. This is more valuable when materials are at a wide mixing ratio
(greater than 4:1) or in instances where there are large viscosity differences between two materials.
1
2
3
4
5
Figure 1 Advanced Ratio Adapter − Two and Three Port Dispense Valve Applications
1. Dispense valve 2. Nose adapter 3. Nut adapter
4. Ratio splitter 5. Orifice screw
Advanced Ratio Adapter (7/8−14) 7
Part 7443516
E 2018 Nordson Corporation
Theory of Operation
Material flow through the Advanced Ratio Adapter is depicted by the
following illustration. See Figure 2.
Dispense valve Dispense valve
2−port flow 3−port flow
Figure 2 Advanced Ratio Adapter − Two and Three Port Dispense Valve Flow
Advanced Ratio Adapter (7/8−14)
8
Part 7443516 E 2018 Nordson Corporation
Consumable Items And Component Cleaning
CAUTION: The suggested use of Acetone is only a recommendation.
Customers should determine which cleaning solvents to utilize in
accordance with Material Data Safety Sheets.
Consumable Items
Table 1 Consumable Items
Item Part Application
Acetone N/A Utilized to clean Advanced Ratio
Adapter components. Refer to Mainten-
ance for additional information.
Component Cleaning
The tools shown in Table 2 are utilized in conjunction with Acetone to clean
and service various system components.
CAUTION:
SEnsure that lint free rags are utilized in conjunction with the cleaning
tools shown in Table 2.
SOnly utilize the cleaning tools shown in Table 2. The use of steel
brushes, scrapers, and abrasive chemicals may lead to component
damage.
Table 2 Cleaning Tools and Chemicals
Tool Name Type Part Number
Acetone Cleaning Chemical Refer to Consumable Items
and Component Cleaning,
Consumable Items for addi-
tional information.
Nylon and / or soft
plastic bristle brushes Cleaning tools −
Plastic pick Cleaning / rebuild tool 7439868
Advanced Ratio Adapter (7/8−14) 9
Part 7443516
E 2018 Nordson Corporation
Maintenance And Cleaning
WARNING:
SAllow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
SRelieve system air and material pressure before proceeding with
maintenance and cleaning. Failure to observe this warning may result in
serious personal injury.
SDisconnect and lock out system power prior to servicing system
components.
SDo not allow any lubricants to enter fluid passageways during
reassembly.
SRelieve air and material pressure when equipment is not in use for
prolonged periods of time. Do not allow pressure to remain static when
equipment is idle as this may cause material to pack and harden.
SDo not apply thread locker to the components listed in this section.
NOTE:
SAdherence to the frequencies outlined in the Preventative Maintenance
Schedule will minimize downtime and promote component longevity.
SRefer to Consumable Items And Component Cleaning for additional
information regarding the cleaning of system components.
CAUTION: The preventative maintenance frequency (below) is only a
recommendation. Other factors impacting the frequency of preventative
maintenance include the nature of materials dispensed, duty imposed on
equipment, plant operating conditions, etc.
Table 3 Preventative Maintenance Schedule
Item Task Completion Time Frequency
Daily Weekly Monthly Yearly
Ratio splitter,
gaskets, and
O−rings
Inspect for leaks,
damage Inspect: 30 seconds
Replace: 10−15 Min. Clean after each shift/period of use.
Advanced Ratio Adapter (7/8−14)
10
Part 7443516 E 2018 Nordson Corporation
Installation
See Figure 3.
WARNING:
SAllow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
SRelieve system air and material pressure before proceeding with
installation and disassembly. Failure to observe this warning may result
in serious personal injury.
SDisconnect and lock out system power prior to servicing system
components.
SDo not allow any lubricants to enter fluid passageways during
reassembly.
SRelieve air and material pressure when equipment is not in use for
prolonged periods of time. Do not allow pressure to remain static when
equipment is idle as this may cause material to pack and harden.
SDo not apply thread locker to the components listed in this section.
1. Remove the mixer shroud or mixer nut from the dispense valve, if
necessary.
2. Unthread mixer from the dispense valve.
CAUTION: Clean dispense valve outlet port with a lint free rag.
3. Unscrew nose adapter (1) from nut adapter (2), if necessary.
4. Screw nose adapter (1) onto the dispense valve.
CAUTION:
SUtilizing an adjustable wrench, or equivalent tool, hand tighten nose
adapter until it is snug.
SOver−tightening nose adapter can damage dispense valve.
5. Carefully screw nut adapter (2) onto nose adapter (1).
NOTE: Nut adapter (2) is screwed onto the nose adapter (1) with the ratio
splitter (3) as an assembly.
CAUTION:
SCarefully handle Advanced Ratio Adapter assembly during the
installation process to prevent the gasket (2−port ratio adapter) or
O−rings (3−port ratio adapter) from being misplaced.
SOver−tightening nut adapter can damage dispense valve.
Advanced Ratio Adapter (7/8−14) 11
Part 7443516
E 2018 Nordson Corporation
Step four Step five
Step three
1
1
Dispense valve Dispense valve
2
3
21
3
Figure 3 Ratio Adapter Installation To Dispense Valve
1. Nose adapter 2. Nut adapter 3. Ratio splitter
Ratio Sampling
See Figure 4.
WARNING:
SAllow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
SRelieve air and material pressure when equipment is not in use for
prolonged periods of time. Do not allow pressure to remain static when
equipment is idle as this may cause material to pack and harden.
SContact your material supplier and refer to Material Safety Data Sheets
(MSDS) regarding safe handling techniques and safety devices to be
used when handling your materials. Be sure that disposal methods used
conform to all federal, state, and local regulations.
1. Dispense material through the mixing tube at the volume and flow rate
dictated by the process to achieve an accurate mixture.
2. Record material pressures of both A and B side material by observing
the Material Pressure HMI Control Panel Screen.
NOTE: Focus on the average dispense pressure throughout the dispense
cycle as opposed to the starting or ending pressure.
3. Remove the mixing tube and install the Advanced Ratio Adapter to the
dispense valve. Refer to Installation for Advanced Ratio Adapter
installation procedure.
4. Insert a BLUE screw to the B side of the ratio adapter.
Advanced Ratio Adapter (7/8−14)
12
Part 7443516 E 2018 Nordson Corporation
NOTE: Utilize the hex key located in the Advanced Ratio Adapter Kit to
install the orifice screw.
5. Activate a purge shot that runs at similar speeds and volumes as the
actual dispense routine.
6. Observe the material pressures on each material side.
7. If the ratio test material pressure of B side is higher than the dispense
routine, remove the screw and insert the RED or SILVER screw. If it is
lower, remove the screw and insert the GREEN or YELLOW screw.
NOTE: Utilize the hex key located in the Advanced Ratio Adapter Kit to
remove and insert the orifice screws.
8. Make adjustments as necessary to the A side in a similar fashion until
both materials are close to the required dispense pressures.
NOTE:
SIt is possible to not need a screw regarding the A side.
SDocument the final combination of screw(s) for future reference.
9. Record the weight of each collection vessel.
NOTE: A collection vessel may consist of a Dixier cup, weighing tin, etc.
10. Place sample collection vessels in position to collect high volume and
low volume fluid samples.
11. Cycle the metering system to allow material to flow into the collection
vessels.
NOTE: Be sure to collect a complete sample into the collection vessel.
12. Weigh the samples to obtain the gross sample weights (vessel and
fluid).
13. Subtract the previously recorded vessel weights from the respective
gross sample weights. This yields the net weight of the samples.
14. To obtain the ratio, divide the net weight of the fluid sample “A” by the
net weight of fluid sample “B”.
NOTE: Valve Sampling Example
S“A” sampling vessel weight = 1.25 grams
S“A” vessel + “A” fluid = 11.25 grams
S11.25 grams (gross weight) − 1.25 grams = 10.00 grams (“A” fluid net
weight)
S“B” sampling vessel weight = 1.30 grams
S“B” vessel + “B” fluid = 6.30 grams
S6.30 grams (gross weight) − 1.30 grams = 5.00 grams
S10.00 grams / 5.00 grams = 2 /1 (2:1 x weight)
Advanced Ratio Adapter (7/8−14) 13
Part 7443516
E 2018 Nordson Corporation
15. Utilize orifice screws, if necessary.
NOTE:
SOrifice screws are utilized to simulate the amount of back−pressure that
would normally be observed with the mixer installed on the dispense
valve.
SBack pressure orifice screws are inserted into ports located on the
Advanced Ratio Adapter.
SUtilize the hex key located in the Advanced Ratio Adapter Kit to remove
and insert the orifice screws.
SRefer to Tables 4 and 5 for an overview of ratio splitter kits.
CAUTION: Do not apply any thread locker to the orifice screws.
Insert orifice screws here
Figure 4 Insertion of Advanced Ratio Adapter Orifice Screws
Table 4 Ratio Splitter Kit
Component Name Kit Number Orifice Screw Size Color Qty.
Orifice screw kit 7443672 0.013 Green 1 kit of 5 screws
Orifice screw kit 7443673 0.020 Yellow 1 kit of 5 screws
Orifice screw kit 7443674 0.031 Blue 1 kit of 5 screws
Orifice screw kit 7443675 0.040 Red 1 kit of 5 screws
Orifice screw kit 7443676 0.062 Silver 1 kit of 5 screws
Advanced Ratio Adapter (7/8−14)
14
Part 7443516 E 2018 Nordson Corporation
Troubleshooting
WARNING:
SAllow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
SRelieve system air and material pressure before proceeding with
installation and disassembly. Failure to observe this warning may result
in serious personal injury.
SDisconnect and lock out system power prior to servicing system
components.
SDo not allow any lubricants to enter fluid passageways during
reassembly.
SRelieve air and material pressure when equipment is not in use for
prolonged periods of time. Do not allow pressure to remain static when
equipment is idle as this may cause material to pack and harden.
SDo not apply thread locker to the components listed in this section.
Problem Possible Cause Corrective Action
1. Dispense valve
nose piece
distortion
Nut adapter and/or nose
adapter overtightened
Ensure nut adapter and nose adapter have not
been overtightened. Refer to Installation for
additional information. Contact Nordson
Customer Service for replacement parts if
dispense valve nose piece distortion is observed.
2. Material leakage Damaged gaskets or O−rings Inspect gaskets and O−rings. Replace gaskets
and O−rings as required.
3. Ratio inaccurate Damaged gaskets or
O−rings. Incorrect
back−pressure.
Inspect gaskets and O−rings and replace as
necessary. Adjust back pressure as necessary
utilizing appropriate orifice screws. Refer to
Operation for additional information.
Advanced Ratio Adapter (7/8−14) 15
Part 7443516
E 2018 Nordson Corporation
Disassembly
WARNING:
SAllow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
SRelieve system air and material pressure before proceeding with
installation and disassembly. Failure to observe this warning may result
in serious personal injury.
SDisconnect and lock out system power prior to servicing system
components.
SDo not allow any lubricants to enter fluid passageways during
reassembly.
SDo not apply thread locker to the components listed in this section.
2−port
See Figure 5.
This Advanced Ratio Adapter is used with 2−port dispense valves with
⅞−14 inch nose adapter threads.
1. Unscrew nose adapter (1) from nut adapter (4).
2. Remove gasket (2) from ratio splitter (3).
3. Remove ratio splitter (3) from nut adapter (4).
4. Assembly of Advanced Ratio Adapter is in the reverse order of
disassembly.
1
2
3
4
Figure 5 Two Port Advanced Ratio Adapter Assembly Exploded View
1. Nose adapter 2. Gasket 3. Ratio splitter
4. Nut adapter
Advanced Ratio Adapter (7/8−14)
16
Part 7443516 E 2018 Nordson Corporation
3−port
See Figure 6.
This Advanced Ratio Adapter is used with 3−port dispense valves with
⅞−14 inch nose adapter threads.
1. Unscrew nose adapter (1) from nut adapter (5).
2. Remove O−ring (2) from ratio splitter (4).
CAUTION:
SUtilize a plastic pick, or equivalent tool, to remove O−ring from ratio
splitter.
SBe careful not to damage O−ring. Do not reuse damaged O−ring.
3. Remove O−ring (3) from ratio splitter (4).
CAUTION:
SUtilize a plastic pick, or equivalent tool, to remove O−ring from ratio
splitter.
SBe careful not to damage O−ring. Do not reuse damaged O−ring.
4. Remove ratio splitter (4) from nut adapter (5).
5. Assembly of Advanced Ratio Adapter is in the reverse order of
disassembly.
1
2
3
4
5
Figure 6 Three Port Advanced Ratio Adapter Assembly Exploded View
1. Nose adapter 2. O−ring 3. O−ring
4. Ratio splitter 5. Nut adapter
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
/
