ESAB SR-B 9 User manual

Instruction manual 0GGCAGH*ccgjgc+
0463 697 001 GB 20210113
SR-B9, SR-B17, SR-B26,
SR-B26-HD, SR-B18, SR-B20,
SR-B21, SR-B400, XCT-B400W

TABLE OF CONTENTS
0463 697 001 © ESAB AB 2021
1SAFETY ....................................................................................................... 4
2INTRODUCTION.......................................................................................... 8
2.1 Overview ................................................................................................. 8
3TECHNICAL DATA ...................................................................................... 9
4OPERATION ................................................................................................ 11
4.1 General .................................................................................................... 11
4.2 Connections............................................................................................ 11
4.3 Choice of electrode ................................................................................ 11
4.4 Grinding................................................................................................... 12
4.5 Bending of the flexible torch ................................................................. 12
4.6 Valve torches .......................................................................................... 12
5MAINTENANCE........................................................................................... 13
5.1 Daily......................................................................................................... 13
6TROUBLESHOOTING ................................................................................. 14
7ORDERING SPARE PARTS ........................................................................ 15
ORDERING NUMBERS....................................................................................... 16
WEAR PARTS...................................................................................................... 18
Rights reserved to alter specifications without notice.

1 SAFETY
0463 697 001 -4- © ESAB AB 2021
1 SAFETY
As used throughout this manual: Means Attention! Be Alert!
DANGER!
Means immediate hazards which, if not avoided, will result in immediate,
serious personal injury or loss of life.
WARNING!
Means potential hazards which could result in personal injury or loss of life.
CAUTION!
Means hazards which could result in minor personal injury.
WARNING!
Before use, read and understand the instruction manual
and follow all labels, employer´s safety practices and
Safety Data Sheets (SDSs).
Users of ESAB equipment have the ultimate responsibility for ensuring that anyone who
works on or near the equipment observes all the relevant safety precautions. Safety
precautions must meet the requirements that apply to this type of equipment. The following
recommendations should be observed in addition to the standard regulations that apply to
the workplace.
All work must be carried out by trained personnel well-acquainted with the operation of the
equipment. Incorrect operation of the equipment may lead to hazardous situations which can
result in injury to the operator and damage to the equipment.
1. Anyone who uses the equipment must be familiar with:
○ its operation
○ location of emergency stops
○ its function
○ relevant safety precautions
○ welding and cutting or other applicable operation of the equipment
2. The operator must ensure that:
○ no unauthorised person is stationed within the working area of the equipment
when it is started up
○ no-one is unprotected when the arc is struck or work is started with the
equipment
3. The workplace must:
○ be suitable for the purpose
○ be free from drafts

1 SAFETY
0463 697 001 -5- © ESAB AB 2021
4. Personal safety equipment:
○ Always wear recommended personal safety equipment, such as safety glasses,
flame-proof clothing, safety gloves
○ Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which
could become trapped or cause burns
5. General precautions:
○ Make sure the return cable is connected securely
○ Work on high voltage equipment may only be carried out by a qualified
electrician
○ Appropriate fire extinguishing equipment must be clearly marked and close at
hand
○ Lubrication and maintenance must not be carried out on the equipment during
operation
WARNING!
Arc welding and cutting can be injurious to yourself and others. Take precautions
when welding and cutting.
ELECTRIC SHOCK - Can kill
• Install and ground the unit in accordance with instruction manual.
• Do not touch live electrical parts or electrodes with bare skin, wet gloves or
wet clothing.
• Insulate yourself from work and ground.
• Ensure your working position is safe
ELECTRIC AND MAGNETIC FIELDS - Can be dangerous to health
• Welders having pacemakers should consult their physician before welding.
EMF may interfere with some pacemakers.
• Exposure to EMF may have other health effects which are unknown.
• Welders should use the following procedures to minimize exposure to
EMF:
○ Route the electrode and work cables together on the same side of
your body. Secure them with tape when possible. Do not place your
body between the torch and work cables. Never coil the torch or work
cable around your body. Keep welding power source and cables as
far away from your body as possible.
○ Connect the work cable to the workpiece as close as possible to the
area being welded.
FUMES AND GASES - Can be dangerous to health
• Keep your head out of the fumes.
• Use ventilation, extraction at the arc, or both, to take fumes and gases
away from your breathing zone and the general area.
ARC RAYS - Can injure eyes and burn skin
• Protect your eyes and body. Use the correct welding screen and filter lens
and wear protective clothing.
• Protect bystanders with suitable screens or curtains.
NOISE - Excessive noise can damage hearing
Protect your ears. Use earmuffs or other hearing protection.

1 SAFETY
0463 697 001 -6- © ESAB AB 2021
MOVING PARTS - Can cause injuries
• Keep all doors, panels and covers closed and securely in place. Have only
qualified people remove covers for maintenance and troubleshooting as
necessary. Reinstall panels or covers and close doors when service is
finished and before starting engine.
• Stop engine before installing or connecting unit.
• Keep hands, hair, loose clothing and tools away from moving parts.
FIRE HAZARD
• Sparks (spatter) can cause fire. Make sure that there are no inflammable
materials nearby.
• Do not use on closed containers.
HOT SURFACE - Parts can burn
• Do not touch parts bare handed.
• Allow cooling period before working on equipment.
• To handle hot parts, use proper tools and/or insulated welding gloves to
prevent burns.
MALFUNCTION - Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
CAUTION!
This product is solely intended for arc welding.
WARNING!
Do not use the power source for thawing frozen pipes.
CAUTION!
Class A equipment is not intended for use in residential
locations where the electrical power is provided by the
public low-voltage supply system. There may be
potential difficulties in ensuring electromagnetic
compatibility of class A equipment in those locations,
due to conducted as well as radiated disturbances.

1 SAFETY
0463 697 001 -7- © ESAB AB 2021
NOTE!
Dispose of electronic equipment at the recycling
facility!
In observance of European Directive 2012/19/EC on
Waste Electrical and Electronic Equipment and its
implementation in accordance with national law,
electrical and/or electronic equipment that has reached
the end of its life must be disposed of at a recycling
facility.
As the person responsible for the equipment, it is your
responsibility to obtain information on approved
collection stations.
For further information contact the nearest ESAB dealer.
ESAB has an assortment of welding accessories and personal protection equipment
for purchase. For ordering information contact your local ESAB dealer or visit us on
our website.

2 INTRODUCTION
0463 697 001 -8- © ESAB AB 2021
2 INTRODUCTION
2.1 Overview
TIG torches SR-B9, SR-B17, SR-B26, SR-B26-HD, SR-B18, SR-B20, SR-B21,
SR-B400 and XCT-B400W are intended for manual TIG welding and available with water or
air cooled versions.
Certain models are available with flex heads for unlimited movement in confined spaces.
Accessories for the product can be found in the "ACCESSORIES" chapter of this
manual.
The TIG torch is supplied with:
• wear parts (except electrodes):
○ Ø 1.6mm (0.063in.) SR-B9
○ Ø 2.4mm (0.094in.) SR-B17
○ Ø 2.4mm (0.094in.) SR-B26
○ Ø 2.4mm (0.094in.) SR-B26-HD
○ Ø 2.4mm (0.094in.) SR-B20
○ Ø 2.4mm (0.094in.) SR-B21
○ Ø 2.4mm (0.094in.) SR-B400
○ Ø 2.4mm (0.094in.) XCT-B400W
• instruction manual

3 TECHNICAL DATA
0463 697 001 -9- © ESAB AB 2021
3 TECHNICAL DATA
Operating temperature range: -10 to +40°C (+14 to +104°F)
Transportation temperature range: -20 to +55°C (+4 to +131°F)
SR-B
9
9FX
SR-B
9V
SR-B
17
17FX
SR-B
17V
SR-B
26
26FX
SR-B
26V
AC [A] / %
DC [A] / %
80/60
110/60
100/60
140/60
140/60
200/60
0.5–1.6mm
(0.02– 0.063in.)
0.5–2.4mm
(0.02– 0.094in.)
0.5–4.0mm
(0.02– 0.157in.)
Ar
Ar/He
4 & 8m
(13 & 26ft)
X - X - X -
12kV
113V
SR-B
26-HD
26FX-HD
SR-B
26V-HD
SR-B
18
18FX
SR-B
20
20FX
SR-B
21
21FX
SR-B
400
XCT-B
400W
- - X X X X X
-70°C
(158 °F)
AC [A] / %
DC [A] / %
160/60
230/60
225/100
320/100
160/100
220/100
240/100
340/100
315/100
450/100
0.5–4.0mm
(0.02– 0.157in.)
0.5–3.2
(0.02– 0.126in.)
1.0–4.8
(0.039–
0.189in.)
1.6–4.0
(0.063–
0.157in.)
Ar
Ar/He
4 & 8m
(13 & 26ft)
X - X X X X X

3 TECHNICAL DATA
0463 697 001 - 10 - © ESAB AB 2021
12kV
113V
Specification of the torch cooling circuit
(for water cooled torches only)
• min. water pressure: 2.5bar
• max. water pressure: 4.0bar
The necessary cooling power is dependent of the application, the welding parameters and
the length of the torch. Sufficiency of available cooling power can be verified by measuring
the return temperature of the cooling fluid. If the return temperature is above 60°C (140°F),
the cooling power should be increased or the welding current should be reduced.
Recommended minimum values for cooling power and coolant flow rate
Welding current /
Torch length
Up to 300ADC /
210AAC
Up to 450ADC /
315AAC
Up to 500ADC /
350AAC
4m 1.0kW / 1.0l/min 1.2kW / 1.2l/min 1.6kW / 1.4l/min
8m 1.6kW / 1.2l/min 2.0kW / 1.4l/min 2.5kW / 1.7l/min
For other application parameters or longer cables, refer to additional documents that may
have been included with your torch.
CAUTION!
Return temperatures of more than 60°C can cause damage or destruction of the
torch. The cooler must always be filled with sufficient cooling liquid, refer the user
manual of the cooling unit. In case of a high thermal load on the torch, use a cooler
with sufficient capacity. Use only special cooling fluid containing corrosion inhibitors
for welding torches. We recommend using ESAB CoolingFluid.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or
cut at a certain load without overloading. The duty cycle is valid for 40°C (104°F), or below.
Protection class
The torches protection class machine side (EN 60 529) IP3X
Enclosure class
The IP code indicates the enclosure class, i.e. the degree of protection against penetration
by solid objects of 2.5 mm Ø and greater. Omitting second characteristic numeral.