Nordson EFD Liquidyn P-Jet SolderPlus User manual

Liquidyn P-Jet SolderPlus Jet Valve
Operating Manual
™
Electronic pdf les of Nordson EFD
manuals are also available at
www.nordsonefd.com

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You have selected a reliable, high-quality dispensing system from Nordson EFD, the world leader in uid
dispensing. The Liquidyn®P-Jet SolderPlus®jet valve was designed specically for industrial dispensing
and will provide you with years of trouble-free, productive service.
This manual will help you maximize the usefulness of your Liquidyn P-Jet SolderPlus valve.
Please spend a few minutes to become familiar with the controls and features. Follow our recommended
testing procedures. Review the helpful information we have included, which is based on more than
50years of industrial dispensing experience.
Most questions you will have are answered in this manual. However, if you need assistance, please do
not hesitate to contact EFD or your authorized EFD distributor. Detailed contact information is provided
on the last page of this document.
The Nordson EFD Pledge
Thank You!
You have just purchased the world’s nest precision dispensing equipment.
I want you to know that all of us at Nordson EFD value your business and will do everything in our power
to make you a satised customer.
If at any time you are not fully satised with our equipment or the support provided by your Nordson
EFD Product Application Specialist, please contact me personally at 800.556.3484 (US), 401.431.7000
(outside US), or [email protected].
I guarantee that we will resolve any problems to your satisfaction.
Thanks again for choosing Nordson EFD.
Srini Subramanian, General Manager
Srini Subramanian

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Contents
Contents..........................................................................................................................................................................3
Introduction .....................................................................................................................................................................5
How the Valve Operates ..............................................................................................................................................5
How the Valve is Controlled.........................................................................................................................................5
Nordson EFD Product Safety Statement ........................................................................................................................6
Halogenated Hydrocarbon Solvent Hazards ...............................................................................................................7
High Pressure Fluids....................................................................................................................................................7
Qualied Personnel......................................................................................................................................................7
Intended Use ...............................................................................................................................................................8
Regulations and Approvals..........................................................................................................................................8
Personal Safety............................................................................................................................................................8
Fire Safety....................................................................................................................................................................9
Preventive Maintenance ..............................................................................................................................................9
Important Disposable Component Safety Information ..............................................................................................10
Action in the Event of a Malfunction..........................................................................................................................10
Disposal .....................................................................................................................................................................10
Equipment-Specic Safety Information.....................................................................................................................11
Specications................................................................................................................................................................12
Operating Features........................................................................................................................................................13
Installation .....................................................................................................................................................................14
Unpack the System Components..............................................................................................................................14
Assemble the Valve (Initial Assembly)........................................................................................................................15
Change the Fluid Body or Tappet (Optional) .............................................................................................................16
Set the Tappet Concentricity .....................................................................................................................................18
Install a Nozzle Heater (Optional)...............................................................................................................................20
Mount the Valve .........................................................................................................................................................21
Connect Cables .........................................................................................................................................................22
Connect the Air Supply..............................................................................................................................................23
Installation Example...................................................................................................................................................24
Initial Startup..............................................................................................................................................................25
Parameter Settings ....................................................................................................................................................26
Recommended Setup Adjustments...........................................................................................................................27
Tappet Adjustment.....................................................................................................................................................28
Adjusting the Force Screw .....................................................................................................................................28
Adjusting the Stroke...............................................................................................................................................29
Service...........................................................................................................................................................................30
Recommended Maintenance Schedule.....................................................................................................................30
Valve Cleaning ...........................................................................................................................................................30
Shut Down the System ..........................................................................................................................................31
Disassemble the Valve ...........................................................................................................................................31
Clean the Valve Components.................................................................................................................................32
Assemble the Valve (After Cleaning) ......................................................................................................................33
Continued on next page

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Replacement Parts........................................................................................................................................................35
Solder Paste ..............................................................................................................................................................35
Valve Components.....................................................................................................................................................35
Nozzle and Nozzle Retaining Nuts.............................................................................................................................36
Syringe Barrels and Accessories...............................................................................................................................37
Accessories ...............................................................................................................................................................38
Quick-Release Valve Mounting Components ........................................................................................................38
Precision Pressure Regulator.................................................................................................................................38
Nozzle Heaters .......................................................................................................................................................39
Tools and Supplies.....................................................................................................................................................40
Technical Data ...............................................................................................................................................................41
Dimensions ................................................................................................................................................................41
M8 Valve Cable Pin Positions ....................................................................................................................................41
Appendix A, About Non-Contact Dispensing................................................................................................................42
Appendix B, P-Jet SolderPlus Valve Interface Overview ..............................................................................................43
Electrical Control........................................................................................................................................................43
Optional Nozzle Heater Control.................................................................................................................................44
Pneumatic Control .....................................................................................................................................................45
Valve Conguration Options ......................................................................................................................................45
Appendix C, Special Instructions for Solder Paste Dispensing ....................................................................................46
Contents (continued)

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Introduction
The Liquidyn P-Jet SolderPlus pneumatic micro-dispensing jet valve
system is designed for the non-contact dispensing of EFD SolderPlus
solder paste. Nordson EFD solder paste is pre-qualied for use with
the SolderPlus valve, making it an ideal choice for a complete jet
dispensing system for solder.
Valve Speed and Deposit Size
Depending on the type of solder paste, the valve can produce micro-
deposits as small as 700 μm in diameter.
Modular, Exchangeable Components
Because the material-carrying components are separate from the
actuator, dispensing tappets and nozzles can be quickly and easily
exchanged, allowing the valve to efciently dispense highly abrasive
mediums as well. The exchangeable design also makes material-type
changeout and component replacement fast and easy.
The Liquidyn P-Jet SolderPlus valve is congurable. Many choices for
the material supply components and the nozzle are available, including
an optional nozzle heater.
How the Valve Operates
The Liquidyn P-Jet SolderPlus valve is electro-pneumatically operated
by a low voltage, adjustable pulse signal that can start at 2 ms. The
dispensing tappet remains open until the trigger signal ends. The valve
is normally closed (NC) when idle, thus reducing the possibility of
unintended uid release upon power off.
How the Valve is Controlled
The valve can be operated using a Nordson EFD Liquidyn valve
controller or directly by the customer via a 24V input using a customer-
supplied controller or a programmable logic controller (PLC).
Liquidyn P-Jet SolderPlus micro-dispensing
valve with a syringe barrel material supply
The Liquidyn V200 controller can be used
to control the operation of the Liquidyn
P-Jet SolderPlus valve

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Nordson EFD Product Safety Statement
READ MANUAL
Read manual for proper use of this equipment. Follow all safety instructions. Task- and equipment-
specic warnings, cautions, and instructions are included in equipment documentation where
appropriate. Make sure these instructions and all other equipment documents are accessible to
persons operating or servicing equipment.
The safety message that follows has a WARNING level hazard.
Failure to comply could result in death or serious injury.
WARNING
ELECTRIC SHOCK
Risk of electric shock. Disconnect power before removing covers and / or disconnect, lock out, and
tag switches before servicing electrical equipment. If you receive even a slight electrical shock, shut
down all equipment immediately. Do not restart the equipment until the problem has been identied
and corrected.
MAXIMUM AIR PRESSURE
Unless otherwise noted in the product manual, the maximum air input pressure is 7.0 bar (100 psi).
Excessive air input pressure may damage the equipment. Air input pressure is intended to be applied
through an external air pressure regulator rated for 0 to 7.0 bar (0 to 100 psi).
RELEASE PRESSURE
Release hydraulic and pneumatic pressure before opening, adjusting, or servicing pressurized
systems or components.
BURNS
Hot surfaces! Avoid contact with the hot metal surfaces of heated components. If contact can not be
avoided, wear heat-protective gloves and clothing when working around heated equipment. Failure
to avoid contact with hot metal surfaces can result in personal injury.
The safety messages that follow have a CAUTION level hazard.
Failure to comply may result in minor or moderate injury.
CAUTION

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Nordson EFD Product Safety Statement (continued)
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 the Safety Data Sheet (SDS) or contact your material supplier for more information. If you must use
halogenated hydrocarbon solvents, contact your EFD representative for compatible EFD components.
High Pressure Fluids
High pressure uids, unless they are safely contained, are extremely hazardous. Always release uid pressure before
adjusting or servicing high pressure equipment. A jet of high pressure uid can cut like a knife and cause serious
bodily injury, amputation, or death. Fluids penetrating the skin can also cause toxic poisoning.
WARNING
Any injury caused by high pressure liquid can be serious. If you are injured or even suspect an injury:
• Go to an emergency room immediately.
• Tell the doctor that you suspect an injection injury.
• Show the doctor the following note.
• Tell the doctor what kind of material you were dispensing.
Medical Alert — Airless Spray Wounds: Note to Physician
Injection in 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.
Qualified Personnel
Equipment owners are responsible for making sure that EFD equipment is installed, operated, and serviced by
qualied personnel. Qualied 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.

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Intended Use
Use of EFD 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:
• Using incompatible materials.
• Making unauthorized modications.
• Removing or bypassing safety guards or interlocks.
• Using incompatible or damaged parts.
• Using unapproved auxiliary equipment.
• Operating equipment in excess of maximum ratings.
• Operating equipment in an explosive atmosphere.
Regulations and Approvals
Make sure all equipment is rated and approved for the environment in which it is used. Any approvals obtained for
Nordson EFD equipment will be voided if instructions for installation, operation, and service are not followed. If the
equipment is used in a manner not specied by Nordson EFD, the protection provided by the equipment may be
impaired.
Personal Safety
To prevent injury, follow these instructions:
• Do not operate or service equipment unless you are qualied.
• Do not operate equipment unless safety guards, doors, and covers are intact and automatic interlocks are
operating properly. Do not bypass or disarm any safety devices.
• Keep clear of moving equipment. Before adjusting or servicing 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.
• Make sure spray areas and other work areas are adequately ventilated.
• When using a syringe barrel, always keep the dispensing end of the tip pointing towards the work and away
from the body or face. Store syringe barrels with the tip pointing down when they are not in use.
• Obtain and read the Safety Data Sheet (SDS) for all materials used. Follow the manufacturer’s instructions for
safe handling and use of materials and use recommended personal protection devices.
• 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.
• Know where emergency stop buttons, shutoff valves, and re extinguishers are located.
• Wear hearing protection to protect against hearing loss that can be caused by exposure to vacuum exhaust port
noise over long periods of time.
Nordson EFD Product Safety Statement (continued)

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Nordson EFD Product Safety Statement (continued)
Fire Safety
To prevent a re or explosion, follow these instructions:
• Shut down all equipment immediately if you notice static sparking or arcing. Do not restart the equipment until
the cause has been identied and corrected.
• Do not smoke, weld, grind, or use open ames where ammable materials are being used or stored.
• Do not heat materials to temperatures above those recommended by the manufacturer. Make sure heat
monitoring and limiting devices are working properly.
• Provide adequate ventilation to prevent dangerous concentrations of volatile particles or vapors. Refer to local
codes or the SDS for guidance.
• Do not disconnect live electrical circuits when working with ammable materials. Shut off power at a disconnect
switch rst to prevent sparking.
• Know where emergency stop buttons, shutoff valves, and re extinguishers are located.
Preventive Maintenance
As part of maintaining continuous trouble-free use of this product, Nordson EFD recommends the following simple
preventive maintenance checks:
• Periodically inspect tube-to-tting connections for proper t. Secure as necessary.
• Check tubing for cracks and contamination. Replace tubing as necessary.
• Check all wiring connections for looseness. Tighten as necessary.
• Clean: If a front panel requires cleaning, use a clean, soft, damp rag with a mild detergent cleaner. DO NOT USE
strong solvents (MEK, acetone, THF, etc.) as they will damage the front panel material.
• Maintain: Use only a clean, dry air supply to the unit. The equipment does not require any other regular
maintenance.
• Test: Verify the operation of features and the performance of equipment using the appropriate sections of this
manual. Return faulty or defective units to Nordson EFD for replacement.
• Use only replacement parts that are designed for use with the original equipment. Contact your Nordson EFD
representative for information and advice.

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Important Disposable Component Safety Information
All Nordson EFD disposable components, including syringe barrels, cartridges, pistons, tip caps, end caps,
and dispense tips, are precision engineered for one-time use. Attempting to clean and re-use components will
compromise dispensing accuracy and may increase the risk of personal injury.
Always wear appropriate protective equipment and clothing suitable for your dispensing application and adhere to
the following guidelines:
• Do not heat syringe barrels or cartridges to a temperature greater than 38° C (100° F).
• Dispose of components according to local regulations after one-time use.
• Do not clean components with strong solvents (MEK, acetone, THF, etc.).
• Clean cartridge retainer systems and barrel loaders with mild detergents only.
• To prevent uid waste, use Nordson EFD SmoothFlow™ pistons.
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:
1. Disconnect and lock out system electrical power. If using hydraulic and pneumatic shutoff valves, close and
relieve pressure.
2. For Nordson EFD air-powered dispensers, remove the syringe barrel from the adapter assembly. For Nordson
EFD electro-mechanical dispensers, slowly unscrew the barrel retainer and remove the barrel from the actuator.
3. Identify the reason for the malfunction and correct it before restarting the system.
Disposal
Dispose of equipment and materials used in operation and servicing according to local codes.
Nordson EFD Product Safety Statement (continued)

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Equipment-Specific Safety Information
The following safety information is specic to the Liquidyn P-Jet SolderPlus valve.
Do not dry cycle the valve! The valve be damaged if it is operated without uid, causing leakage and a poor seal.
Precise dispensing can no longer be guaranteed if this occurs.
CAUTION
General
• Before use, read the complete operating instructions and all safety instructions to ensure safe and correct usage.
• Observe all safety instructions.
Intended Use
• The micro-dispensing system is for indoor use only.
• Do not use the micro-dispensing system in an explosive atmosphere or with explosive materials.
Fluid Compatibility
• Use only for the micro-dispensing of low- to medium-viscosity uids or pastes.
• Ensure that all uid carrying parts and sealings are resistant to the dispensing material used.
Operating Conditions
• Operate heaters (optional) within the approved temperature range only. Refer to “Specications” on page12.
• Use only heaters that are distributed by Nordson EFD specically for this micro-dispensing valve.
• Adhere to the maintenance intervals specied under “Service” on page30.
• Do not subject the valve needle to force, knocks, or impact.
• Avoid long shutdown periods with the system switched on.
• Do not operate the valve in a dry condition (without dispensing material).
Nordson EFD Product Safety Statement (continued)

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Specifications
NOTE: Specications and technical details are subject to engineering change without prior notication.
Item Specification
Size Refer to “Dimensions” on page41.
Weight 270 g (9.5 oz)
Maximum uid pressure 100 bar (1450 psi)
Fluid inlet thread M8 x 1, at sealing
Mounting M3 x 25
Maximum operating frequency 100Hz
Pulse time Starting at 2 ms
Input voltage 24 VDC, PLC compatible
Power consumption 0.5 Amp (peak 5.0 Amp)
Input air pressure 3–8 bar (44–116 psi)
Fluid body 303 stainless steel
Heater body Aluminum
Maximum valve temperature 40° C (104° F)
NOTE: Refer also to the manufacturer’s safety data sheet (SDS) for the material to
be dispensed for the required ambient operating conditions.
Maximum nozzle heater temperature 90° C (194° F)
Humidity 10–80%
Storage temperature -5–60° C (23–140° F)
Dispensing volume From 3 nL (1 oz) per cycle
Viscosity range 0.5–10,000 mPas (thixotropic)
Dispensing accuracy >97% (dispensing tolerance <3%)
Service life >100,000,000 cycles
Product classication IP65
Installation category II
Compressed air quality class Pollution degree DIN ISO 8573-1, class 5
Approvals CE

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Operating Features
The Liquidyn P-Jet SolderPlus micro-dispensing valve is shipped with the components shown under “Unpack the
System Components” on page14, along with any additional conguration selections and accessories. The valve
can be uniquely congured to achieve the best dispensing result for your material and application.
Electrical input
(M8 valve cable)
Stroke adjustment knob
Sound absorber
Air input (operating pressure)
Fluid body
• Steel
Nozzle (ordered separately)
• Steel
Luer lock adapter
(ordered separately)
• Steel
Tappet nut
Tappet
• Steel
Syringe barrel
(ordered separately)
Syringe barrel bracket
(ordered separately)
Syringe barrel adapter
(uid pressure)
(ordered separately)
Force screw
Nozzle heater retaining nut (ordered separately;
required when a nozzle heater is installed)
Rod sealing O-rings (2x)
• NBR (Buna-N)
• EPDM
• Perlast®
• Viton®
Mounting screws M3 x 14 (4x)
Nozzle heater (ordered separately; required
for most solder applications)
Nozzle heater O-ring (ordered separately;
required when a nozzle heater is installed)

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1 Liquidyn P-Jet SolderPlus valve equipped with the following parts:
• Actuator
• Steel uid body
• 4 mounting screws
• 2 NBR O-rings (between the tappet rod and uid body)
• Steel tappet
2 2.5 m (8.2 ft) M8 valve cable with 3-pin plug
3 Open-end wrench for 3.5 mm tappet rod
Open-end wrench for 6 mm tappet nut
Hex wrench for 1.5 mm adjustment knob
4 Tappet alignment tool
5 Concentricity tool
(Not shown)
SolderPlus solder paste and optional components (ordered and
shipped separately)
12
Installation
Use this section in tandem with any other system component operating manuals to install all components of the
system.
Unpack the System Components
3
4
5

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Assemble the Valve (Initial Assembly)
Follow this procedure to assemble the valve before mounting it. You will need the following items:
• Hex wrench, size 10
• Hex wrench, size 2.5
• Nozzle
• Nozzle retaining nut
• Optional: Heater key (if installing a nozzle heater)
Refer to “Replacement Parts” on page35 for component part numbers.
NOTE: The steps provided in this manual are based on a valve with a syringe barrel.
1. • Remove the protective covers.
• Optional: To use a different uid body and / or tappet,
go to “Change the Fluid Body or Tappet (Optional)” on
page16. Return here to continue.
2. Install the nozzle.
3. Recommended: Install a nozzle heater.
NOTE: The nozzle heater is an optional component;
however, it is included as a step in this manual because
most solder applications require a nozzle heater.
NOTE: The nozzle is only minimally secured by a nozzle
heater. The nozzle is fully secured by the retaining nut.
4. • Position the nozzle retaining nut in the nozzle heater and
then use the heater key to tighten the nozzle retaining nut.
Continued on next page

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Change the Fluid Body or Tappet (Optional)
Follow this procedure to use an optional uid body or tappet. You will need the following items:
• Replacement uid body
• Replacement tappet
• Tappet alignment tool
• Barrier grease
• Wooden pick
1. • Unscrew and remove the four screws that secure the uid
body.
• Carefully remove the uid body without damaging the
tappet.
Continued on next page
5. • By hand, thread the luer lock adapter loosely onto the uid
body, positioning it at a 15° angle from its end position.
• Tighten the nut with a wrench so that the adapter is
parallel to the straight axis of the valve.
Torque: 5 N•m (3.7 ft-lb) maximum
~15°
6. Mount the syringe barrel holder.
7. Install the syringe barrel and syringe barrel adapter.
Assemble the Valve (Initial Assembly) (continued)

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Change the Fluid Body or Tappet (Optional) (continued)
2. Loosen the tappet nut with a wrench (6 mm to loosen the
tappet nut; 3.5 mm to hold the tappet rod steady).
3. • Press in the tappet with controlled pressure until the
clamping sleeve between the tappet and nut loosens. A
piece of wood or hard rubber is suitable to press against.
• Remove the tappet.
4. Turn the force screw fully counterclockwise as follows (to
eliminate any spring force on the tappet):
• Completely loosen the raster element.
• Turn the force screw counterclockwise until it stops.
• Completely tighten the raster element to secure the force
screw.
Force
screw
Raster
element
5. • Insert the replacement tappet until the tappet stops.
6. • Insert the tappet alignment tool into the uid body and
around the tappet; push the tool in until it is rmly held in
place by its tapered sides.
7. • Using the same technique described in step 2, tighten
the tappet nut (while the tappet alignment tool is still
installed).
Torque: 0.1 N•m (0.7 ft-lb) maximum
• Remove the tappet alignment tool from the uid body.
Continued on next page

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8. Using a wooden pick, apply a small amount of barrier grease
at the base of the replacement tappet and distribute this
around the annulus.
9. • Install a new O-ring (standard material: NBR) on the tappet
and press the O-ring down into the greased annulus.
• Distribute the grease evenly so that the entire sealing
surface of the O-ring is covered.
• Install the second (grease-free) O-ring on the tappet on
top of the initial O-ring.
10. • Mount the initial or replacement uid body precisely over
the tappet without tilting it. Tighten the screws crosswise.
Torque: 0.8 N•m (5.9 ft-lb) maximum
11. • Continue to the next procedure to set the tappet
concentricity.
Change the Fluid Body or Tappet (Optional) (continued)
Set the Tappet Concentricity
Follow this procedure to set the tappet concentricity (common center) as follows:
• Anytime the tappet is changed or replaced.
• Whenever the dispensing performance deteriorates.
You will need the following items:
• Concentricty tool
• Nozzle retaining nut
Refer to “Replacement Parts” on page35 for component part numbers.
1. Turn the stroke adjustment knob fully counterclockwise as
follows (so that it is not forcing the tappet into a forward
position):
• Use a hex wrench to loosen the locking set screw.
• Turn the stroke adjustment knob counterclockwise until it
stops.
• Tighten the locking set screw to secure the knob.
Locking set screw
Stroke
adjustment
knob
Continued on next page

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2. If you have not already done so, turn the force screw fully
counterclockwise as follows (to eliminate any spring force on
the tappet):
• Completely loosen the raster element.
• Turn the force screw counterclockwise until it stops.
• Completely tighten the raster element to secure the force
screw.
Force
screw
Raster
element
3. • Remove the nozzle, if present.
• Install the concentricity tool onto the uid body where the
nozzle would mount.
• Install the nozzle retaining nut to secure the concentricity
tool.
4. • Turn the force screw one (1) click counterclockwise so
that there is a low spring force pushing the tappet onto
the concentricity tool.
Force
screw
Raster
element
5. • Place the valve upright under a measuring system (such
as a digital microscope with measurement capability).
• Adjust the magnication to 100 times (100x) and focus on
the at surface of the tappet, which is at the same height
as the concentricity tool. Tappet
Concentricity
tool
6. • Use the measuring system’s center-to-center tool to
measure the concentricity of the tappet to the inside ring
of the concentricity tool.
NOTE: The three holes in the concentricity tool act as
windows to view the inner diameter.
7. • Repeat the concentricity measurement three times
by repeating steps 1–6 (including turning the stroke
adjustment knob back when removing / installing the
concentricity tool).
• Average all three measurements. An acceptable tappet
concentricity is <75 µm.
Set the Tappet Concentricity (continued)

Liquidyn P-Jet SolderPlus Jet Valve
20 www.nordsonefd.com [email protected] 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.
Install a Nozzle Heater (Optional)
The nozzle heater is an optional component; however, because most solder applications require a nozzle heater,
it was included as a step under “Assemble the Valve (Initial Assembly)” on page15. This section is included for
additional reference as needed.
The illustration below shows the installation of a nozzle heater. A nozzle heater controls the temperature of the
material in the nozzle. The nozzle is secured minimally by the nozzle heater with an elastomer (heater O-ring)
between it and the valve. The nozzle is fully secured by the retaining nut.
You will need the following items:
• Nozzle
• Nozzle heater
• Nozzle heater O-ring (NBR or EPDM)
• Retaining nut
• Heater key
• Heater cable
Refer to “Replacement Parts” on page35 for component part numbers.
NOTES:
• The nozzle retaining nut predominantly secures and seals the nozzle in place. The heater remains in contact with
the retaining nut through pressure supplied by a heater O-ring, which creates a partial space between the heater
and the uid body. This ensures thermal contact and allows the heater to rotate slightly even when the retaining
nut is fully tightened.
• The image below is based on a Liquidyn P-Jet valve with a standard nozzle heater. The mounting process is the
same for all valves.
NOTES:
• The electrical connection for the
heater is supplied through the
provided heater cable.
• To attach or release the heater cable,
loosen or tighten the knurled nut by
hand. Be sure to connect the heater
cable plug in the correct orientation.
Nozzle
Nozzle heater O-ring
Nozzle heater
Nozzle retaining nut
Heater key
Torque for a steel nozzle: 1.2 N•m (10.6 in.-lb)
Torque for a plastic nozzle: 0.5 N•m (4.4 in.-lb)