Swagelok CWS-D100-1B User manual

www.swagelok.com
USER’S MANUAL
CWS-D100-1B
CWS-D100-2B
WELDING SYSTEM

The Swagelok Limited
Lifetime Warranty
Swagelok hereby warrants to the purchaser of this Product that the
non-electrical components of the Product shall be free from defects in
material and workmanship for the life of the Product. All electrical
components installed in or on the Product are warranted to be free
from defects in material and workmanship for twelve months from the
date of purchase.
The purchaser’s remedies shall be limited to replacement and installation
of any parts that fail through a defect in material or workmanship.
MANUFACTURER SPECIFICALLY DISAVOWS ANY OTHER
REPRESENTATION, EXPRESS OR IMPLIED, WARRANTY, OR
LIABILITY RELATING TO THE CONDITION OF USE OF THE
PRODUCT, AND IN NO EVENT SHALL SWAGELOK BE LIABLE TO
PURCHASER, OR ANY THIRD PARTY, FOR ANY DIRECT OR
INDIRECT CONSEQUENTIAL OR INCIDENTAL DAMAGES.

2005 Swagelok Company, all rights reserved
September 2005 TOC−1
Table of Contents
Foreword
Registration Information i. . . . . . . . . . . . . . . . . . . . . . . .
Safety Summary iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Statements iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe Practices and Safety Precautions vii. . . . . . . .
User Precautions ix. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Warning Label x. . . . . . . . . . . . . . . .
Referenced Specifications xi. . . . . . . . . . . . . . . . . . .
Section 1 Introduction SWS D100
Gas Tungsten Arc Welding 1-2. . . . . . . . . . . . . . . . . . . . . .
Principles of the GTAW Process 1-2. . . . . . . . . . . . .
GTAW Process Advantages 1-2. . . . . . . . . . . . . . . . .
Process Variables 1-3. . . . . . . . . . . . . . . . . . . . . . . . . .
System Components 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
The SWS D100 Power Supply 1-4. . . . . . . . . . . . . . .
The Weld Head 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixture Blocks 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview of SWS Operation 1-7. . . . . . . . . . . . . . . . . . . .
Specifications 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2 Installation
Introduction 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools and Accessory Requirements 2-2. . . . . . . . . . . . . .
Electrical Requirements 2-3. . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using an Extension Cord 2-3. . . . . . . . . . . . . . . . . . . .
Unpacking and Inspecting System Components 2-4. . .
Unpacking the Power Supply 2-4. . . . . . . . . . . . . . . .
Unpacking the Weld Head Cable Assembly
and Related Components 2-5. . . . . . . . . . . . . . . . . . .

Table of Contents CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
TOC−2
Installing the SWS 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Power Supply 2-6. . . . . . . . . . . . . . . . . .
Installing the Weld Head 2-7. . . . . . . . . . . . . . . . . . . .
Installing the Gas Delivery System 2-9. . . . . . . . . . . . . . .
Introduction 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Typical Shielding/Purge Gas
Delivery System 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Optional Gas Delivery System 2-12. . .
Preliminary Check 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3 Operation
Introduction 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Controls 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Control Switches 3-3. . . . . . . . . . . . . . . . . . . .
Timing Control Switches 3-4. . . . . . . . . . . . . . . . . . . .
Pushbuttons 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicator Lights 3-8. . . . . . . . . . . . . . . . . . . . . .
Digital Displays 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SWS Modes of Operation 3-9. . . . . . . . . . . . . . . . . . . . . . .
Operational Mode 3-12. . . . . . . . . . . . . . . . . . . . . . . . . .
Program Mode 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Mode 3-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Electrode in the Series 5/10/20
Weld Head 3-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Proper Electrode 3-26. . . . . . . . . . . . . . .
Inserting the Electrode into a Rotor 3-26. . . . . . . . . . .
Setting the Arc Gap 3-27. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Arc Gap Gage 3-27. . . . . . . . . . . . . . . . . . .
Setting the Arc Gap 3-27. . . . . . . . . . . . . . . . . . . . . . . .
Preparing the Work 3-28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixturing the Work 3-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Fixture Block and Collets 3-29. . . . . . . .
Installing the Collets in a Tube Fixture Block 3-29. . .
Aligning the Work Pieces in the Tube
Fixture Block 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Purge Gas Line 3-32. . . . . . . . . . . . . .
Connecting the Weld Head to the Fixture Block 3-33. . . .
Safety Interlock 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mating the Weld Head to the Fixture Block 3-34. . . .

CWS−D100−B Welding System Table of Contents
2005 Swagelok Company, all rights reserved
September 2005 TOC−3
Entering the Weld Parameters 3-35. . . . . . . . . . . . . . . . . . .
Using a Weld Procedure Guideline 3-35. . . . . . . . . . .
Effects of Weld Parameters 3-36. . . . . . . . . . . . . . . . .
Setting the Shield Gas Flow 3-37. . . . . . . . . . . . . . . . . . . . .
Starting and Completing the Weld 3-37. . . . . . . . . . . . . . .
Display Indications During Welding 3-38. . . . . . . . . . .
After the Weld is Complete 3-39. . . . . . . . . . . . . . . . . .
Operation Summary 3-40. . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 4 Micro Weld Heads CWS-4MRH-A,
CWS-4MFH-A, CWS-8MRH
Introduction 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Micro Fixture Tool 4-3. . . . . . . . . . . . . . . . . . . . .
Installing the Motor Module 4-3. . . . . . . . . . . . . . . . . . . . .
Installing the Micro Weld Head 4-4. . . . . . . . . . . . . . . . . .
Installing/Replacing the Electrode 4-6. . . . . . . . . . . . . . . .
Setting the Arc Gap 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixturing the Work 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Micro Weld Head to the Fixture 4-11. . . .
Considerations During Welding 4-13. . . . . . . . . . . . . . . . . .
Using the Optional Bench Mounting Bracket 4-14. . . . . . .
Series 4 Bench Mount Bracket 4-14. . . . . . . . . . . . . . .
Series 8 Bench Mount Bracket 4-15. . . . . . . . . . . . . . .
Section 5 Weld Parameter Adjustment
Introduction 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Developing a Weld Procedure Guideline 5-1. . . . . . . . . .
Determining the Work Specifications 5-2. . . . . . . . . .
Setting the Front Panel Switches 5-3. . . . . . . . . . . . .
Example Weld Procedure Guideline Worksheet 5-9
Weld Procedure Guideline Worksheet 5-10. . . . . . . .
Evaluating the Weld 5-16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying Typical Weld Discontinuities 5-16. . . . . . .
Identifying Proper Welds 5-17. . . . . . . . . . . . . . . . . . . .
Adjusting Controls for Weld Quality 5-22. . . . . . . . . . . . . .
Section 6 Maintenance
Introduction 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series 5/10/20 Fixture Blocks 6-2. . . . . . . . . . . . . . . . . . .
Daily Maintenance 6-2. . . . . . . . . . . . . . . . . . . . . . . . .
Forty-Hour Maintenance 6-2. . . . . . . . . . . . . . . . . . . .
Micro Weld Head Fixture Blocks 6-3. . . . . . . . . . . . . . . . .
Daily Maintenance 6-3. . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
TOC−4
Series 5/10/20 Weld Head 6-4. . . . . . . . . . . . . . . . . . . . . .
Daily Maintenance 6-4. . . . . . . . . . . . . . . . . . . . . . . . .
Forty-Hour Maintenance 6-4. . . . . . . . . . . . . . . . . . . .
Series 5/10/20 Weld Head Disassembly
and Cleaning 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series 5/10/20 Weld Head Assembly 6-9. . . . . . . . .
Micro Weld Heads 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daily Maintenance 6-10. . . . . . . . . . . . . . . . . . . . . . . . .
Eight-Hour Maintenance 6-11. . . . . . . . . . . . . . . . . . . .
Micro Weld Head Assembly 6-15. . . . . . . . . . . . . . . . .
Power Supply 6-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Inspection and Replacement 6-15. . . . . . . . . . .
Section 7 Troubleshooting
Introduction 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swagelok Welding System (SWS) Repair Procedure 7-1
Repair/Replacement Instructions 7-2. . . . . . . . . . . . .
Appendix A Glossary
Appendix B Optional Equipment
SWS Remote Pendant B-2. . . . . . . . . . . . . . . . . . . . . . . . .
Weld Head Extension Cables B-3. . . . . . . . . . . . . . . . . . .
Data Logging/Monitoring B-4. . . . . . . . . . . . . . . . . . . . . . . .
Data Recording Printer B-6. . . . . . . . . . . . . . . . . . . . . . . . .
Introduction B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking and Inspection B-6. . . . . . . . . . . . . . . . . . .
Installation B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating the Printer B-9. . . . . . . . . . . . . . . . . . . . . . .
Maintenance B-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using a Standard RS-232 Printer B-16. . . . . . . . . . . . .
Appendix C Electrode Selection Tables
and Geometry
CWS-4MRH-A, CWS-4MFH-A
Micro Weld Heads C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CWS-8MRH Micro Weld Head C-1. . . . . . . . . . . . . . . . . . .
CWS-5H-B Weld Head C-2. . . . . . . . . . . . . . . . . . . . . . . . .
CWS-10H-A Weld Head C-2. . . . . . . . . . . . . . . . . . . . . . . .
CWS-20H-A/B Weld Head C-3. . . . . . . . . . . . . . . . . . . . . .
Electrode Geometry C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

CWS−D100−B Welding System Table of Contents
2005 Swagelok Company, all rights reserved
September 2005 TOC−5
Appendix D Weld Head Information
MICRO WELD HEAD −TUBE WELDING D-2. . . . . . . . .
SERIES 5 WELD HEAD −TUBE WELDING D-2. . . . . . .
SERIES 10 WELD HEAD −TUBE WELDING D-3. . . . .
SERIES 20 WELD HEAD −TUBE WELDING D-3. . . . .
SERIES 20 WELD HEAD −PIPE WELDING D-4. . . . . .
MICRO WELD HEAD −TUBE WELDING D-4. . . . . . . . .
SERIES 5 WELD HEAD −TUBE WELDING D-5. . . . . . .
SERIES 10 WELD HEAD −TUBE WELDING D-5. . . . .
SERIES 20 WELD HEAD −TUBE WELDING D-6. . . . .
Appendix E Arc Gap Gage Setting Tables
Wall Thickness and Arc Gap E-1. . . . . . . . . . . . . . . . . . . .
Weld Head Arc Gap Gage Setting Tables E-2. . . . . . . . .
Arc Gap Gage Setting Tables
for Swagelok ATW Fittings E-11. . . . . . . . . . . . . . . . . . . . . .
Arc Gap Gage Setting Formula E-12. . . . . . . . . . . . . . . . . .
Appendix F Parts Drawings
Appendix G Gas Flow Rate Tables
Purge Rate and Pressure Tables G-1. . . . . . . . . . . . . . . .
Purge Rate and Pressure Tables Continued G-2. . . . . . .
General Suggested Shielding
Gas Flow Rates (Argon) G-2. . . . . . . . . . . . . . . . . . . . . . . .
Appendix H Fixture Block Alignment
Series 5 Fixture Block H-1. . . . . . . . . . . . . . . . . . . . . .
Series 20H-B Fixture Block H-5. . . . . . . . . . . . . . . . . .
Series 8 Micro Weld Head Fixture H-6. . . . . . . . . . . .
Appendix I Weld Procedure Guidelines
Index

Table of Contents CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
TOC−6

2005 Swagelok Company, all rights reserved
September 2005 i
Foreword
Registration Information
Your Swagelokrepresentative can provide support and
service of your Swagelok Welding System (SWS) as well
as local stock of precision fittings and valves.
Please take a moment to fill out the warranty information
form as well as the information listed below. Keep this
information available in case you need to contact your
Swagelok representative.
Power Supply:
Model Number*:
Serial Number*:
Delivery Date:
* See rating label on the rear of the unit, shown in Figure 1.
Weld Head(s):
Weld Head:
Model Number:
Serial Number:
Delivery Date:
Model Number:
Serial Number:
Delivery Date:
Model Number:
Serial Number:
Delivery Date:
Figure 1 Rating Label

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
ii

CWS−D100−B Welding System Foreword
2005 Swagelok Company, all rights reserved
September 2005 iii
Safety Summary
The safety information presented here pertains to both
the SwagelokRWelding System (SWS) and the process of
Gas Tungsten Arc Welding (GTAW).
Read Operating Instructions
Read all of the instructions in this manual prior to operating
the SWS.
Statements
Caution! Statements identify conditions or
practices that could result in damage to
the equipment or other property.
WARNING! Statements identify conditions or
practices that could result in personal
injuries or loss of life.
Symbols
The following symbols are used in this manual and on
the equipment to visually identify where warning or
caution information is found. Consult symbols and
related instructions below for necessary actions to avoid
the hazards.
WARNING or Caution
This symbol identifies the location of all other
types of warning or caution information which
don’t have specific symbols. Accompanying
text will identify the specific nature of the
condition and if the condition is a warning
or caution.

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
iv
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal
shocks and severe burns. Incorrectly installed or
improperly grounded equipment is a hazard.
DDo not touch live electrical parts
DNo user serviceable parts in the power supply other
than a fuse. Refer all other power supply servicing
to your Authorized Swagelok representative.
DKeep all panels and covers securely in place. Do
not touch electrode connector, electrode, or rotor
after pressing start. The electrode is live during the
weld cycle.
DVerify that the power supply is properly grounded
before use. Make sure the power cord is plugged
into a properly wired and grounded receptacle.
DFollow local electrical codes and the guidelines in
the manual when installing the SWS. Failure to do
so may create an electrical shock hazard. Shock
hazards can exist even when equipment is properly
installed, so it is important that the operator be
trained in the proper use of the equipment and
follow established safety practices.
DFrequently inspect input power cord for damage or
bare wiring –replace immediately if damaged.
DProperly unplug the power cord. Grasp the plug to
remove it from the receptacle.
DDo not use extension cords that are in poor physical
condition or have insufficient current capacity.
Failure to do so can pose fire and shock hazards.

CWS−D100−B Welding System Foreword
2005 Swagelok Company, all rights reserved
September 2005 v
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health. Build−up of gases can displace oxygen
and cause injury or death.
DDo not breathe fumes or gases.
DIf inside, ventilate the area and/or use exhaust at the
arc to remove welding fumes and gases.
DIf ventilation is poor, use an approved air-supplied
respirator.
DRead the Material Safety Data Sheets (MSDSs) and
the manufacturer’s instructions for metals,
consumables, coatings, cleaners, and degreasers.
DWork in a confined space only if it is well
ventilated or while wearing an air−supplied
respirator. Always have a trained watch−person
nearby. Welding fumes and gases can displace air
and lower the oxygen level causing injury or death.
Be sure the breathing air is safe.
DDo not weld in locations near degreasing, cleaning,
or spraying operations. The heat and rays of the arc
can react with vapors to form highly toxic and
irritating gases.
DDo not weld on coated metals, such as galvanized,
lead, or cadmium plated steel, unless the coating is
removed from the weld area, the area is well
ventilated, and if necessary, while wearing an
air−supplied respirator. The coatings and any
metals containing these elements can give off toxic
fumes if welded.
DThe ultraviolet light emitted by the welding arc acts
on the oxygen in the surrounding atmosphere to
produce ozone. Test results1, based upon present
sampling methods, indicate the average
concentration of ozone generated in GTAW process
does not constitute a hazard under conditions of
good ventilation and welding practice.
1 WELDING HANDBOOK, VOLUME 2, 8TH EDITION,
AMERICAN WELDING SOCIETY.
DShut off shielding gas supply when not in use.

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
vi
ARC RAYS can burn eyes.
NOISE can damage hearing.
Arc rays from the welding process produce
intense visible and invisible (ultraviolet and
infrared) rays that can burn eyes. The SWS is
meant for use only with enclosed weld heads
which minimize exposure to these harmful rays.
DDo not look at welding arc.
DUse protective screens or barriers to protect
others from flash and glare; warn others not to
watch the arc.
DWear approved ear protection if noise level
is high.
WELDING can cause fire or explosion.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up.
The hot work piece and hot equipment can
cause fires and burns. Check and be sure the
area is safe before doing any welding.
DProtect yourself and others from the
hot work piece.
DWatch for fire, and keep a fire
extinguisher nearby.
DDo not weld on closed containers such as tanks,
drums, or pipes, unless they are
properly prepared according to AWS F4.1.
DDo not use welder to thaw frozen pipes.
DDo not use extension cords that are in poor physical
condition or have insufficient current capacity.
Failure to do so can pose fire and shock hazards.

CWS−D100−B Welding System Foreword
2005 Swagelok Company, all rights reserved
September 2005 vii
Safe Practices and Safety Precautions
READ ANSI Z49.1
Safety and safe practices in welding, cutting and
allied processes are covered in ANSI Z49.1,
SAFETY IN WELDING AND CUTTING. When
using the SWS, follow all basic safety practices.
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
DProtect compressed gas cylinders from excessive
heat, mechanical shocks, slag, open flames, sparks,
and arcs.
DInstall cylinders in an upright position by securing
to a stationary support or cylinder rack to prevent
falling or tipping.
DKeep cylinders away from any welding or other
electrical circuits.
DNever weld on a pressurized cylinder −explosion
will result.
DUse only correct shielding gas cylinders, regulators,
hoses, and fittings designed for the specific
application; maintain them and associated parts in
good condition.
DTurn face away from valve outlet when opening
cylinder valve.
DKeep protective cap in place over valve except
when cylinder is in use or connected for use.
DRead and follow instructions on compressed gas
cylinders, associated equipment, and CGA
publication P−1 listed in Safety Standards.
WARNING!
SHIELDING GAS CYLINDERS
CAN EXPLODE IF DAMAGED
OR IMPROPERLY TREATED.

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
viii
HOT PARTS can cause severe burns.
After welding, the work piece, weld head,
and electrode can be extremely hot and may
cause burns.
MAGNETIC FIELDS can affect pacemakers.
DPacemaker wearers keep away.
DWearers should consult their doctor before going
near welding operations.
WARNING!
SHIELDING GAS CYLINDERS
CAN EXPLODE IF DAMAGED
OR IMPROPERLY TREATED.
WARNING!
PACEMAKER WEARERS
KEEP AWAY.

CWS−D100−B Welding System Foreword
2005 Swagelok Company, all rights reserved
September 2005 ix
User Precautions
DPower Supply Grounding
The power supply is grounded through the ground
connector of the power cord. Avoid electrical shock
by making sure the power cord is plugged into a
properly wired and grounded receptacle before
turning the unit on.
DWater and Moisture
System components are not waterproof. Do not
expose the SWS equipment to water.
DProper Use and Storage
Do not store or use near hazardous materials. Store
indoors and cover the system when not in use.
DWeld Heads
Disconnect the weld head completely from the
power supply prior to servicing.
User service, including cleaning or component
replacement, is limited to those operations
identified in this manual.
DFixture Blocks
Disconnect the fixture block from the weld head
prior to servicing. User service, including cleaning
or component replacement, is limited to those
operations identified in this manual.
DPower Supply Service
There are no user serviceable parts in the power
supply other than a fuse. Refer all other servicing
to your Authorized Swagelok sales and
service representative.
WARNING!
VERIFY THAT THE SYSTEM
IS PROPERLY GROUNDED
BEFORE USE.
WARNING!
USERS SHOULD NOT
SERVICE THE
POWER SUPPLY.

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
x
Power Supply Warning Label
This warning label is affixed to the power supply.

CWS−D100−B Welding System Foreword
2005 Swagelok Company, all rights reserved
September 2005 xi
Referenced Specifications
1. AWS F4.1, Recommended Safe Practices for the Preparation
for Welding and Cutting of Containers and Piping.
American Welding Society, 550 N.W. LeJeune Rd, Miami, FL
33126 (www.aws.org).
2. ANSI Z49.1, Safety in Welding Cutting, and Allied Processes.
American Welding Society, 550 N.W. LeJeune Rd, Miami, FL
33126 (www.aws.org).
3. CGA Publication P−1, Safe Handling of Compressed Gases
in Cylinders.
Compressed Gas Association, 4221 Walney Road, 5th Floor,
Chantilly VA 20151−2923, ( www.cganet.com).
4. OSHA 29CFR 1910 Subpart Q, Welding Cutting, and Brazing.
Acquire from U.S. Government Printing Office, Superintendent
of Documents, P.O. Box 371954, Pittsburgh, PA 15250
(www.osha.gov).
5. OSHA 29CFR 1926 Subpart J, Welding and Cutting.
Acquire from U.S. Government Printing Office,
Superintendent of Documents, P.O. Box 371954,
Pittsburgh, PA 15250 (www.osha.gov).

Foreword CWS−D100−B Welding System
2005 Swagelok Company, all rights reserved
September 2005
xii