PVA JDX User manual

Precision Valve & Automation
One Mustang Drive
Cohoes, NY 12047
www.pva.net
JDX Jet Valve
OWNER’S MANUAL
Revision H
WHERE
PRECISION
DRIVES
PRODUCTION

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This document is based on information available at the time of its publication. While
efforts have been made to ensure the contents of this manual are accurate, the
information contained herein does not purport to cover all specific details or variations
in hardware, or to provide for every possible contingency in connection with
installation, operation, or maintenance. Features may be described herein which are not
present in all hardware and software systems. Precision Valve and Automation, Inc.
assumes no obligation of notice to holders of this document with respect to changes
subsequently made.
Precision Valve and Automation, Inc. makes no representation or warranty, expressed,
implied, or statutory with respect to, and assumes no responsibility for the accuracy,
completeness, sufficiency, or usefulness of the information contained herein. No
warranties of merchantability or fitness for purpose shall apply.
This document, including the information contained herein, is the property of
Precision Valve and Automation, Inc. and is considered confidential and
proprietary information. It is delivered on the express condition that it not be
used, disclosed, or reproduced, in whole or in part, for any reason without prior
written consent of Precision Valve and Automation, Inc.
Copyright © 2016
Precision Valve and Automation, Inc.
All Rights Reserved.

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Table of Contents
Introduction ............................................................................................. 51.
Document History ............................................................................................... 51.2
Safety .................................................................................................................. 61.3
Theory of Operation............................................................................................71.4
Description of Components ................................................................................ 71.5
Personal Protective Equipment ..........................................................................71.6
Waste Disposal.................................................................................................... 71.7
Necessary Tools ..................................................................................................81.8
Setup........................................................................................................ 82.
Overview .............................................................................................................82.1
Operation................................................................................................. 93.
Install the Diaphragm.......................................................................................... 93.1
Install Nozzle Plate and Feed Tube ...................................................................103.2
Prime the Jet .....................................................................................................123.3
Set the Heater Temperature.............................................................................133.4
Set Fluid Pressure ..............................................................................................133.5
Jet Pressure .......................................................................................................143.6
Jet Shutdown Procedure ...................................................................................143.7
Clean the Wetted Parts.....................................................................................163.8
Replace the Orifice............................................................................................173.9
Maintenance .......................................................................................... 214.
Flush the System ...............................................................................................214.1
How to Use the Valve with Portal ........................................................... 225.
Setup Mode....................................................................................................... 225.1
Select a Recipe ..................................................................................................245.2
Jetter Maintenance...........................................................................................255.3
How to Use the Jet with the PVA JDX Jet Valve Controller ....................... 266.
Jet and Fluid Pressure .......................................................................................286.1
Temperature Controller....................................................................................286.2
To change the SV temperature .................................................................286.2.1

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To turn ON the heater............................................................................... 296.2.2
To turn OFF the heater..............................................................................296.2.3
LCD Display Functions and Selection Keys ........................................................306.3
Trigger Button and LED ..................................................................................... 316.4
Exploded View........................................................................................ 327.
Item Numbers and Descriptions ............................................................... 327.1.1
Replacement Parts and Accessories ........................................................ 338.
Technical Specifications.......................................................................... 359.
Troubleshooting ..................................................................................... 3610.
Notes ..................................................................................................... 3711.
Warranty................................................................................................ 3812.
Table of Figures ...................................................................................... 3913.

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Introduction1.
Before you operate this system, read the operation and setup manual. This will help you
to become familiar with the product and ensure successful operation.
If any questions or problems arise, contact PVA’s Technical Support department for
support.
PVA Contact Information1.1
Main Office PVA
One Mustang Drive
Cohoes, NY 12047
Tel [phone]
Fax [phone]
Website http://www.pva.net
Email mailto: [e-mail]
Technical Support
Tel [phone]
Email mailto: [email protected]
Document History1.2
Revision
Revision Date
Reason for Changes
Rev H
March 2016
Updated Part Numbers
Rev G
July 2015
Updated Part Numbers
Rev F
May 2015
Updated O-ring Information
Rev E
Dec. 2014
Updated Controller Content
Rev D
Fall 2014
Updated to Include HV-2000 Controller
Rev C
Oct. 2014
Updated Nozzle Content
Rev B
May 2014
Updated to Include Portal Screens
NOTE: All photographs and CAD model representations in this document are a
“general representation” of the valve and its components. The actual
appearance of the valve and its components can differ based upon customer
specific configuration.

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Safety1.3
Certain warning symbols are affixed to the machine and correspond to notations in this
manual. Before operating the system, identify these warning labels and read the notices
described below. Not all labels may be used on any specific system.
Always wear approved safety glasses when you operate or
work near the workcell.
Before you operate the system, read and understand the
manuals provided with the unit.
Never put hands or tools in areas with this symbol when the
machine is in operation. A dangerous condition may exist.
Read and understand the manuals provided with the unit
before any repairs or maintenance is done. Only a qualified
individual should do service.
Use caution when there are pressurized vessels. Find and
repair any leaks immediately. Always wear appropriate safety
equipment when you work with pressurized vessels or vessels
that contain chemicals.
Shear hazard from moving parts. Avoid contact.

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Theory of Operation1.4
The JDX Jet Valve is a high speed, non-contact dispenser that applies small shots of fluid
as individual dots or in rapid succession. Only 3 components come in contact with fluid:
the feed tube, diaphragm, and nozzle plate. The unique diaphragm design allows for fast
cycling of the jet, up to 300Hz for high speed line dispensing. The JDX is designed to
dispense coatings, underfill, encapsulant, SMT glue, grease, and more with very fine
control.
Description of Components1.5
Refer to Section 2.1 for an overview image.
Component
Description
Syringe Bracket
The bracket for 30cc syringe is one piece with jet body. Inserts are
available for smaller syringe sizes.
Jet Body
This component contains the pneumatic solenoid that controls the
on/off function of the jet.
Heater
Built into jet body, the fluid is warmed at the point of dispense.
Feed Tube
A disposable tube with a female luer fitting. It supplies fluid from the
syringe to the nozzle plate.
Diaphragm
Small component that fits into the heater and is held in position by the
nozzle plate. It comes in three materials for dispense material
compatibility.
Nozzle Plate
The nozzle plate has the dispense port orifice in it and is connected to
the syringe with the feed tube. The nozzle plate is available in multiple
sizes and materials of dispense ports orifices.
Personal Protective Equipment1.6
Operators must use eye protection because material contents are under pressure.
Always wear gloves when handling materials and solvents. Refer to MSDS sheets on the
material being dispensed for other precautions.
Waste Disposal1.7
Dispose of all used parts and materials in accordance with local laws and regulations.

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Necessary Tools1.8
PVA offers tools and cleaning accessories to maintain the JDX jet valve.
Part Number
Description
02597
3mm hex wrench
Philips screwdriver
Setup2.
Before you operate the jet, know the components. Follow the steps instructed below for
safe and correct operation.
Overview2.1
Figure 1: Jet Components

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Operation3.
NOTE: Use only compatible solvents and materials or the seals and O-rings will
be damaged.
The sections that follow are in the recommended order to operate the jet valve. Do the
sub-sections in Section 3, in the order shown.
NOTE: The jet valve is shown removed from the workcell in the procedures
below. It is not necessary to remove the jet valve to do the procedures.
Install the Diaphragm3.1
1. Set the jet valve to open with the operator interface of JDX controller box.
2. Align the ribs on top of the diaphragm to the groove features on the bottom of
the heater block.
Figure 2: Diaphragm and Heater Block Grooves
3. Put the diaphragm on your finger tip and gently press it into heater block with
metal insert aligned with the center hole.
Figure 3: Diaphragm Installed in the Heater Block
Grooves on the
heater block

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Install Nozzle Plate and Feed Tube3.2
1. Align the feed tube with the barb inlet on the nozzle plate.
2. Push the feed tube onto the barb inlet.
Figure 4: Feed Tube and Nozzle Plate
3. Align the nozzle plate on the heater block with the barb inlet facing toward the
syringe bracket. The heater block has two locating pins that will guide the
nozzle plate onto the heater block.
Figure 5: Align the Heater Block and Nozzle Plate
4. Make sure the nozzle plate faces the correct way.
Figure 6: Nozzle Plate