Nordson Ratio Adapter Owner's manual

Brand: Nordson

Model: Ratio Adapter

Type: Owner's manual

This manual is also suitable for

Ratio Adapter Manual

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

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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)

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.

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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)

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

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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)

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.

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

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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)

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

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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)

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

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Step four Step five

Step three

Dispense valve Dispense valve

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)

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

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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)

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

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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.

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)

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.

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

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Nordson Ratio Adapter Owner's manual

Brand: Nordson

Model: Ratio Adapter

Type: Owner's manual

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Ratio Adapter Manual

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