Miller GAS EQUIP-THE LITTLE TORCH, (FORM 4164) User manual

OM-263357D
2019-09
Processes
Oxy-Fuel
Soldering
Welding
Heating
)
The Little Torch
OWNERS MANUAL
File: Accessory
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS -READ BEFORE USING . . . . . . . . . . . 1
1-1.
1-2.
1-3.
1-4.
Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Welding, Cutting, Brazing, Heating Hazards . . . . . . . . . . . . . . . . . . . . . . . . .
California Proposition 65 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
6
6
SECTION 2 − INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 3 − HAZARDOUS EVENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 4 − HAZARDS OF RECOMPRESSING PURE OXYGEN . . . . . . . . . . 8
SECTION 5 − THE TORCH SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5-1.
5-2.
5-3.
5-4.
Torch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repairs/Replacement Of Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
9
9
9
SECTION 6 − FREQUENTLY ASKED QUESTIONS . . . . . . . . . . . . . . . . . . . . . . 10
SECTION 7 − USING TORCH WITH DISPOSABLE-TYPE CYLINDERS . . . . 11
7-1.
7-2.
7-3.
7-4.
7-5.
7-6.
7-7.
7-8.
7-9.
7-10.
7-11.
Disposable Compressed Gas Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Regulators On Cylinders-Models 239-499B And 239-500B . . .
Installing Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Activating The System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purging The System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing The Equipment For Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting And Installing A Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lighting Procedures (When Using Disposable Cylinders) . . . . . . . . . . . . .
Extinguishing The Torch Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutting Down The System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bleeding The System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
12
13
13
13
13
13
14
14
14
SECTION 8 − USING THE TORCH WITH HIGH
PRESSURE, INDUSTRIAL-TYPE CYLINDERS . . . . . . . . . . . . . . . . . . . . . . . . . 14
8-1.
8-2.
8-3.
8-4.
8-5.
8-6.
8-7.
8-8.
8-9.
8-10.
8-11.
8-12.
Industrial-Type Cylinder Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Activating The Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjusting Regulator Pressures And Purging The Hoses . . . . . . . . . . . . . .
Testing The Equipment For Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting And Installing A Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lighting/Adjusting Torch When Using Acetylene Or Hydrogen Fuel . . . .
Lighting And Adjusting Torch When Using Alternate Fuel Gases . . . . . . .
Extinguishing The Torch Flame And Securing Equipment . . . . . . . . . . . . .
Shutting Down The System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bleeding The System Of Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
15
15
16
16
16
17
17
18
18
18
18
SECTION 9 − HOSE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9-1.
9-2.
Removing Old Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installing New Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SECTION 10 − REGULATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SECTION 11 − TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11-1.
11-2.
11-3.
11-4.
Tip Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Gas And Flame Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flame And Heat Placement BTU Output Per Cubic Ft Of Fuel Burned .
Cylinder Valve Identification For Regulator Selection . . . . . . . . . . . . . . . . .
21
22
22
22
SECTION 12 − ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
WARRANTY
SECTION 1 − SAFETY PRECAUTIONS READ BEFORE USING
OXY FUEL 2018-01
Protect yourself and others from injury — read, follow, and
save these important safety precautions and operating instructions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if not
avoided, will result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained
in the text.
Indicates a hazardous situation which, if not avoided, could
result in death or serious injury. The possible hazards are
shown in the adjoining symbols or explained in the text.
NOTICE − Indicates statements not related to personal injury.
. Indicates special instructions.
This group of symbols means
Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and
HOT PARTS hazards. Consult
symbols and related instructions below for necessary actions to avoid the
hazards.
1-2. Welding, Cutting, Brazing, Heating Hazards
The symbols shown in this section are used throughout this
manual to call attention to and identify possible hazards.
When you see the symbol, watch out, and follow the related
instructions to avoid the hazard. The safety information given
below is only a summary of the more complete safety information found in the Safety Standards listed in Section 1-4. Read
and follow all Safety Standards.
Only qualified persons should install, operate, maintain, and
repair this equipment. A qualified person is defined as one
who, by possession of a recognized degree, certificate, or
professional standing, or who by extensive knowledge, training and experience, has successfully demonstrated ability to
solve or resolve problems relating to the subject matter, the
work, or the project and has received safety training to recognize and avoid the hazards involved.
During operation, keep everybody, especially children, away.
Do not use this equipment unless you are trained in its proper
use or are under competent supervision. Follow the procedures described in this booklet every time you use the equipment. Failure to follow these instructions can cause fire, explosion, asphyxiation, property damage, or personal injury.
This equipment must be used in accordance with all Federal,
State, and local regulations as well as DOT (Department of
Transportation) and CGA (Compressed Gas Association) regulations. Contact your gas supplier for more information on
the proper use of compressed gases.
OM-263357 Page 1
. In this document, the phrase “welding and cutting” also refers to other oxy-fuel operations like brazing and heating.
READ INSTRUCTIONS.
D Read and follow all labels and the Owner’s Manual carefully be-
fore installing, operating, or servicing equipment. Read the safety
information at the beginning of the manual and in each section.
D Use only genuine replacement parts from the manufacturer.
D Perform installation, maintenance, and service according to the
Owner’s Manuals, industry standards, and national, state, and
local codes.
HOT PARTS can burn.
D Do not touch hot parts bare handed.
D Allow cooling period before working on equipment.
D To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.
FUMES AND GASES can be hazardous.
Welding and cutting produces fumes and gases. Breathing these
fumes and gases can be hazardous to your health.
D Keep your head out of the fumes. Do not breathe the fumes.
D Ventilate the work area and/or use local forced ventilation at the
flame to remove welding and cutting fumes and gases. Some gases
(natural gas and acetylene) are lighter than air and will collect in high
areas. Other gases (propane and butane) are heavier than air and
will collect in low areas. Heavier-than-air gases are more difficult to
diffuse and are more likely to accumulate. The recommended way
to determine adequate ventilation is to sample for the composition
and quantity of fumes and gases to which personnel are exposed.
D If ventilation is poor, wear an approved air-supplied respirator.
D Read and understand the Safety Data Sheets (SDSs) and the
manufacturer’s instructions for adhesives, coatings, cleaners,
consumables, coatings, cleaners, degreasers, fluxes, and metals.
D Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding and cutting fumes and gases can displace air and lower the oxygen level, causing injury or death. Be
sure the breathing air is safe. Test atmospheres in confined areas
for explosive and toxic gases before using oxy-fuel equipment.
D Do not weld or cut in locations near degreasing, cleaning, or
spraying operations. The heat from welding or cutting flame can
react with vapors to form highly toxic and irritating gases.
D Do not weld or cut on coated metals, such as galvanized, lead, or
cadmium-plated steel unless the coating is removed from the affected area, the area is well ventilated, and while wearing an airsupplied respirator. The coatings and any metals containing
these elements can give off toxic fumes if welded or cut.
D Do not weld or cut on sealed air conditioning or refrigeration systems unless all refrigerants have been removed from the system.
OM−263357 Page 2
BUILDUP OF GAS can injure or kill.
D Shut off compressed gas supply when not in use.
D Always ventilate confined spaces or use approved air-supplied
respirator.
LIGHT RAYS can burn eyes and skin.
Light rays from the welding and cutting process produce intense visible
and invisible (ultraviolet and infrared) rays that can burn eyes and skin.
Sparks fly off from the weld.
D Wear approved face protection fitted with a proper shade of filter
lenses to protect your face and eyes from light rays and sparks
when welding, cutting, or watching (see ANSI Z49.1 and Z87.1
listed in Safety Standards).
D Wear welding goggles, or wear welding helmet/welding faceshield over approved goggles/safety glasses with side shields.
D Use protective screens or barriers to protect others from flash,
glare and sparks; warn others not to watch the welding or cutting.
D Wear body protection made from durable, flame−resistant material (leather, heavy cotton, wool). Body protection includes
oil-free clothing such as leather gloves, heavy shirt, cuffless
trousers, high shoes, and a cap.
WELDING AND CUTTING can cause
fire or explosion.
Welding and cutting on closed containers, such as tanks, drums, or
pipes, can cause them to blow up. Sparks can fly off from the welding or
cutting operations. The torch flame, flying sparks, hot workpiece, and
hot equipment can cause fires and burns. Check and be sure the area is
safe before doing any welding or cutting.
D Do not use this welding and cutting equipment with gases and
D
pressures other than those for which it is intended. Oxygen is not
flammable; however, the presence of pure oxygen will drastically
increase the speed and force with which burning takes place. Oxygen must never be allowed to contact grease, oil, or other petroleum-based substances; therefore, be sure there is no oil or grease
on the regulator, cylinder, valves, or equipment. Do not use petroleum-based pipe sealants. Do not use or store near excessive heat
(above 125° F/51.5° C) or open flame. Do not refer to oxygen as air
and do not use oxygen as a substitute for compressed air. Do not
use oxygen to clean clothes or work area, for ventilation, or to operate pneumatic tools. Open oxygen cylinder valves slowly. Be sure
regulator adjusting handle is in the full out (off) position before
opening oxygen cylinder valve.
Inspect all equipment before use. Do not use damaged, defective,
or improperly adjusted welding and cutting equipment. Make sure
levers and valves work properly, threads on equipment are clean
(no grease or oil) and not deformed, gauges are intact and easy to
read, regulator is clean and free of oil or dirt, and fittings are properly sized for the cylinder. Make sure hoses are clean (no grease or
oil) and ferrules are properly installed so the fitting does not slip inside the hose. Be sure all connections are tight.
OM-263357 Page 3
D It is recommended that a reverse-flow check valve or a flashback ar-
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
restor be installed between the torch handle and the regulator. Check
valves do not prevent the propagation of a flame upstream (flashback) but are designed to prevent the unintentional backflow of gases
into the cutting attachment, torch, hoses, or regulator which could
cause an explosion or fire. A flashback arrestor can be installed on the
torch handle instead of a check valve. Miller flashback arrestors have
a reverse flow check valve and prevent the propagation of a flame upstream. If a flashback arrestor is installed, a check valve is not necessary. Using a flashback arrestor and a check valve can reduce gas
flow and affect torch operation. To help prevent the reverse flow of
gases, be sure the cylinders contain enough gas to complete the
work.
Perform work only in an area with a fireproof floor (concrete). Do
not heat concrete because it can expand and explode violently.
Perform work on a fireproof surface. Use heat resistant shields to
protect nearby walls and flooring.
Do not use if grease or oil is present on equipment or if equipment is
damaged. Have equipment cleaned/repaired by a qualified person.
Do not open a cylinder valve quickly or the regulator can be damaged and cause a fire.
Do not open acetylene cylinder valve more than 3/4 turn. (For all
gases except acetylene, open cylinder valve fully to backseal the
cylinder valve.) Keep cylinder wrench on the cylinder for quick
shut-off.
Do not slightly open or “crack” fuel cylinder valve to blow debris
from the valve outlet. Remove the debris using nitrogen, air, or a
clean, oil-free rag.
Always purge gas from the system before lighting torch. Purge gas
in a well-ventilated area and away from flame or sparks.
Keep torch flame or sparks away from cylinder, regulator, and gas
hose.
Use only the gases recommended by the manufacturer of the
oxy-fuel equipment being used.
Never light a torch with matches or a lighter. Always use a striker.
Do not use acetylene above 15 psi (103 kPa) flowing. It is acceptable to use acetylene regulators that indicate a static pressure up
to 22 psi (151 kPa).
Do not withdraw acetylene from a cylinder at a rate exceeding 1/7
of the cylinder capacity per hour.
Do not use torch if you smell gas. Check oxy-fuel system for leaks
with an approved leak detection solution or leak detector. Never
test for gas leaks with a flame.
Remove all flammables within 35 ft (10.7 m) of the welding or cutting operation. If this is not possible, tightly cover them with approved covers.
Do not weld or cut where flying sparks can strike flammable
material.
Protect yourself and others from flying sparks and hot metal.
Be alert that welding and cutting sparks and hot materials from
welding and cutting can easily go through small cracks and openings to adjacent areas.
Watch for fire, and keep a fire extinguisher nearby.
Be aware that welding or cutting on a ceiling, floor, bulkhead, or
partition can cause fire on the hidden side.
Do not cut or weld on tire rims or wheels. Tires can explode if heated. Repaired rims and wheels can fail. See OSHA 29 CFR
1910.177 listed in Safety Standards.
OM−263357 Page 4
D Do not weld or cut on containers that have held combustibles, or on
D
D
D
D
D
D
closed containers such as tanks, drums, or pipes unless they are
properly prepared according to AWS F4.1 and AWS A6.0 (see
Safety Standards).
Do not weld or cut where the atmosphere can contain flammable
dust, gas, or liquid vapors (such as gasoline).
Wear body protection made from durable, flame−resistant material
(leather, heavy cotton, wool). Body protection includes oil-free
clothing such as leather gloves, heavy shirt, cuffless trousers, high
shoes, and a cap.
Do not use fuel gases to clean clothes or work area.
Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding or cutting.
After completion of work, inspect area to ensure it is free of sparks,
glowing embers, and flames.
Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B
for hot work and have a fire watcher and extinguisher nearby.
CYLINDERS can explode if damaged.
Compressed gas cylinders contain gas under high pressure. If
damaged, a cylinder can explode. Since gas cylinders are normally part
of the welding or cutting process, be sure to treat them carefully.
D Protect compressed gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open flames, and sparks.
D Install cylinders in an upright position by securing to a stationary
D
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support or cylinder rack to prevent falling or tipping. Do not lay acetylene cylinders on their sides or acetone will flow out of the cylinder
and damage the equipment.
Keep cylinders away from any arc welding, cutting, or other electrical circuits.
Never drape a welding or cutting torch over a gas cylinder.
Never weld or cut on a pressurized cylinder − explosion will result.
Use only correct compressed gas cylinders, regulators, hoses, and
fittings designed for the specific application; maintain them and associated parts in good condition. Do not use compressed gas cylinder unless an approved gas regulator is attached to the gas valve.
Turn face away from valve outlet when opening cylinder valve. Do
not stand in front of or behind the regulator when opening the valve.
Keep protective cap in place over valve except when cylinder is in
use or connected for use.
Use the proper equipment, correct procedures, and sufficient number of persons to lift, move, and transport cylinders.
Store compressed gas and oxygen cylinders in separate locations.
Store empty cylinders with valves closed and caps in place.
Do not modify or repair cylinders or valves. Store leaking acetylene
cylinders outdoors in a safe area. Identify leaking cylinders and return them to the supplier.
Dispose of used disposable cylinders according to the manufacturer’s recommendations. Do not throw cylinders in fire.
Follow instructions provided by the gas supplier and on compressed gas cylinders, associated equipment, and in Compressed
Gas Association (CGA) publication P-1 listed in Safety Standards.
OM-263357 Page 5
FLYING METAL or DIRT can injure eyes.
D Welding, cutting, chipping, wire brushing, and grinding cause
sparks and flying metal.
D Wear welding goggles, or wear welding helmet/welding face-
shield over approved goggles/safety glasses with side shields.
1-3. California Proposition 65 Warnings
WARNING: This product can expose you to chemicals including lead, which are known to the state of California to
cause cancer and birth defects or other reproductive harm.
For more information, go to www.P65Warnings.ca.gov.
1-4. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
is available as a free download from the American Welding Society at
http://www.aws.org or purchased from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, from Global
Engineering Documents (phone: 1-877-413-5184,
website: www.global.ihs.com).
Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0, from Global
Engineering Documents (phone: 1-877-413-5184,
website: www.global.ihs.com).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 14501 George Carter Way, Suite
103, Chantilly, VA 20151 (phone: 703-788-2700,
website:www.cganet.com).
Acetylene, CGA Pamphlet G-1, from Compressed Gas Association,
14501 George Carter Way, Suite 103, Chantilly, VA 20151 (phone:
703-788-2700, website:www.cganet.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard
W117.2, from Canadian Standards Association, Standards Sales, 5060
Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5NS
(phone: 800-463-6727, website: www.csagroup.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, website: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,
Quincy, MA 02169 (phone: 1-800-344-3555, website: www.nfpa.org.)
OSHA, Occupational Safety and Health Standards for General Industry,
Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart N,
Part 1910 Subpart Q, and Part 1926, Subpart J, from U.S. Government
Printing Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954 (phone: 1-866-512-1800) (there are 10 OSHA
Regional Offices—phone for Region 5, Chicago, is 312-353-2220, website: www.osha.gov).
OM−263357 Page 6
Applications Manual for the Revised NIOSH Lifting Equation, The National Institute for Occupational Safety and Health (NIOSH), 1600 Clifton
Rd, Atlanta, GA 30329-4027 (phone: 1-800-232-4636,
website: www.cdc.gov/NIOSH).
Recommended Practices for Safe Oxyfuel Gas Cutting Torch Operation
C4.2/C4.2M, and Recommended Practices for Safe Oxyfuel Gas Heating Torch Operation C4.3/C4.3M from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Notes
OM-263357 Page 7
SECTION 2 − INTRODUCTION
Inspect all equipment before use. Do not use damaged, defective, or improperly adjusted welding and cutting equipment.
Make sure levers and valves work properly, threads on equipment are clean (no grease or oil) and not deformed, gauges are
intact and easy to read, regulator is clean and free of oil or dirt,
and fittings are properly sized for the cylinder. Make sure
hoses are clean (no grease or oil) and ferrules are properly installed so the fitting does not slip inside the hose. Be sure all
connections are tight and there are no leaks in the system.
This booklet offers basic information regarding the Little Torch. Given
reasonable care, the torch will provide trouble-free use for many years.
SECTION 3 − HAZARDOUS EVENTS
The following events are very hazardous and can occur in any oxy-fuel
system. It is important to understand these hazards and know how to
prevent them.
Backfire: The return of the flame into the torch, usually accompanied by
a popping sound. The flame may be extinguished or it may re-appear at
the tip end.
Sustained Backfire: The return of the flame into the torch that continues to burn inside the torch with a hissing or squealing sound.
Flashback: The return of a flame into and through the torch or into the
hose. In some instances it can reach the regulator and even enter the cylinder. Flashback is generally caused by the mixing of the oxygen and fuel gas
in the system resulting in a very dangerous situation that can cause an explosion anywhere in the system. This is why purging is so important (Section
7-5 or 8-5).
SECTION 4 − ASSOCIATED HAZARDS OF
RECOMPRESSING PURE OXYGEN
Open oxygen cylinder valves slowly. Opening an oxygen cylinder valve quickly can cause a fire or explosion. Be sure regulator adjusting handle is in the full out (off) position before opening an oxygen cylinder valve.
Recompressing high pressure oxygen in a low pressure cavity may create heat, resulting in combustion. For combustion to occur, oxygen, fuel,
and kindling temperatures must be present. All of these components
may be present when oxygen is recompressed by opening the tank valve
too quickly.
OM-263357 Page 8
Oxygen: High purity oxygen accelerates the rate of combustion, increases heat output, and lowers the combustible point at which various
materials will burn.
Fuel: The fuel for combustion may be the regulator itself if enough heat is
produced to reach the kindling temperature of the regulator’s components.
Kindling Temperatures: Enough heat may be generated to ignite the
regulator components by the friction created when recompressing
high-pressure oxygen. This heat is known as the heat of recompression.
If an internal fire or flashback occurs (indicated by a whistling
sound or inverted flame), do the following:
D Turn off the torch oxygen valve immediately.
D Turn off the torch fuel valve.
D Turn off the oxygen cylinder valve.
D Turn off the fuel gas cylinder valve.
Do not relight the torch until the equipment has cooled to the touch and
the flashback cause has been determined and corrected.
SECTION 5 − THE TORCH SYSTEM
5-1. Torch
The torch is designed to meet the requirements of industry for a small,
lightweight torch to fusion weld, braze, heat, and solder materials ranging from 3/16 in. (5 mm) metal to ultra-fine wires. The six tips available
provide a wide range of flame sizes and the versatility to perform many
different tasks. Lightweight construction and highly flexible hose provide
pinpoint welding with maximum control.
5-2. Gases
The torch uses oxygen and these commonly available pressurized fuel
gases: acetylene, hydrogen, propane, propylene, or natural gas. The
smallest tip (size 2) can only be used satisfactorily with acetylene and
hydrogen fuel gases.
NOTICE − When using natural gas, a minimum of 1 psig (6.9 kPa) is required at the torch. Higher pressures are necessary for use with melting
tips.
5-3. Tips
There are six tips available for the torch. Because of their extraordinarily
small orifices, tip sizes 2 and 3 are fitted with a synthetic sapphire to ensure accurate gas flow. There are also two different heating tips available, one tip is for use with acetylene or hydrogen and another tip is designed for propane or natural gas. Refer to the pressure
recommendation chart provided in this booklet for the tips being used.
5-4. Repairs/Replacement Of Hose
Replace hoses at the first sign of any defects, flaws, or damage. The hoses should otherwise be replaced every four years.
Inspect hoses for damage or leaks before each operation. Do
not allow hoses to come in contact with hot metal, molten solder, or corrosive chemicals. Do not expose hoses to fluxing
agents as these agents will deteriorate the hose materials and
cause them to leak.
OM-263357 Page 9
Use an approved oil-free leak detection fluid to locate possible
leaks.
Use only industrial grade hose. Grade T hose is acceptable for
all fuel gases. Grade R hose is for acetylene only.
The torch hose is of a special material designed to be compatible with the
various fuel gases. The maximum length of hose used should not exceed
12 ft (3.7 m). The hose may be attached to standard welding gas hoses
3/16 in. or larger diameter with special brass fittings if the gas cylinders
must be located a further distance from the torch. The brass B-type fittings for connecting the hoses can be purchased from most welding
equipment dealers.
For your protection, use only genuine Miller hose and replacement parts.
Miller replacement hoses come with step-by-step replacement instructions and a tool for securing the brass ferrules over the hose ends.
Repairs and replacement parts are available through your Miller authorized service agent.
SECTION 6 − FREQUENTLY ASKED QUESTIONS
How do I replace the torch hose?
Step–by–step instructions, a ferrule (brass hose retainer band), and ferule replacement tool accompany all replacement hose assemblies.
What are the part numbers for replacement hose assemblies?
D Oxygen
13254−1−8
D Fuel Gas
13254−3−8
D Hose Pair
13254−4−8
Why is it hard to light size 1 and size 2 tips or keep them lit?
This condition is typically due to excessive gas pressures. A maximum of
just 2 psig (13. 7 kPa) outlet pressure is recommended for both gases
and the use of an open flame makes lighting the tiny flames much easier.
Does the torch require adaptors to fit cylinder regulators?
For most regulators the answer is no. The hose assemblies have standard size B, 9/16 in. welding hose-type connections and will attach to
most industrial welding gas regulators.
Can the orifices in the torch tips be cleaned?
If the orifices are obstructed by flux, the tips can often be cleaned by boiling them in water for about 10 minutes. Other methods used to clean dirty
tips involve the use of a jeweler’s type steam cleaner or an ultrasonic
cleaner.
What fuel gases will work with the torch?
The torch may be operated with most commercially used welding gases
including acetylene, propane, hydrogen, propylene, and butane. It may
also be used with city gas (natural gas) at a minimum pressure of 1 psig
(6.9 kPa) at the torch.
NOTICE − Most city gas lines only produce 1/4–1/2 psig (1.7–3.4 kPa).
OM-263357 Page 10
What fuel gas should I use with the torch?
Most operators use either acetylene or propane. However both gases offer specific advantages and disadvantages. Acetylene produces a very
concentrated, pinpoint high temperature flame (about 6000°F/3316°C)
whereas the other gases tend to spread the heat produced throughout
the outer flame. The acetylene flame produces soot during combustion
and the LP gases tend to burn much cleaner. Acetylene gas is lighter
than air and in the event of a gas leak it will tend to dissipate in the atmosphere with any air flow. LP gas is heavier than air and will collect in low
spots, thereby creating potential breathing and combustion hazards.
What are the flame sizes and orifice diameters of the tips?
Tip
Size
Orifice
Diameter
Orifice
Drill
Size
BTUs/
Hr
Recommended
Pressures
(Both Gases)
psig
kPa
Overall
Flame
Length
in.
mm
2
.006
97
130
2
13.7
1/8
3
3
.011
85
1,150
4
20.7
1-1/2
38
4
.020
76
2,300
5
27.6
5-1/2
(thin)
140
5
.029
69
3,800
6
34.5
5-1/2
140
6
.037
63
6,585
6
41.4
6-1/2
165
7
.047
56
9,200
8
48.3
7
178
What are the applications for twin flame tips?
The flexible twin flame tips may be used where both sides of an object
can be heated. They can speed up the soldering or brazing process and
provide even heating for complete, more even solder flows. The size 3
twin tip is often used by jewelers for sizing rings. Tip tubes are flexible and
may be bent to position the flames as desired.
What are the applications for the multi−flame (rosebud) tips?
They may be used where a larger, more widely dispersed flame is needed for brazing, soldering, or heating. They are used predominantly in the
jewelry industry for annealing, reticulation, and casting of gold and silver.
Both acetylene and the propane models are capable of casting up to 3 oz
(85 g) of gold or silver. These tips are also used for enameling and plastics polishing.
Can the torch gas valves be replaced if they are damaged or
worn out?
Yes, the complete valve assembly may be replaced for either gas. Using
an open end wrench, remove the valve assembly from the torch body.
The white PTFE packing rings under the valves should also be replaced
(part no. 7348). Valve assembly part numbers are as follows: oxygen
(green) No. 7345; fuel (red) No.7346.
SECTION 7 − USING THE TORCH WITH
DISPOSABLE-TYPE CYLINDERS
OM-263357 Page 11
Inspect equipment before use. Do not use if grease or oil is
present on equipment or if equipment is damaged. Have equipment cleaned/repaired by a qualified person.
Do not slightly open or “crack” fuel cylinder valve to blow
debris from the valve outlet. Remove the debris using nitrogen,
air, or a clean, oil-free rag.
Do not use petroleum-based pipe sealants. Do not use any
sealants on metal-to-metal seals, such as hose and CGA cylinder connections. Use PTFE-based sealant (PTFE-tape) on pipe
threads.
7-1. Disposable Compressed Gas Cylinders
Use only compressed gas cylinders that are approved by the Department of Transportation (DOT) with this equipment. The torch will operate
on the throw-away disposable cylinders that are found in most hardware,
retail, or welding outlets.
Dispose of used disposable cylinders according to the manufacturer’s recommendations. Do not throw cylinders in fire.
Do not completely empty disposable cylinders. When the
flame indicates a loss of pressure, immediately shut down the
system and replace the cylinder.
Never tamper with or attempt to repair disposable cylinders. If
damaged, return cylinder to the supplier. Always check the
regulator cylinder connection for leaks.
7-2. Installing Regulators On Cylinders − Models 239-499B
And 239-500B
1.
2.
3.
4.
Before attaching the regulators to the disposable cylinders, be sure
the regulator and torch valves are in the Off position.
Attach the oxygen regulator (identified by the word “Oxygen”
stamped on side of regulator) to the oxygen cylinder. The disposable oxygen cylinder and the oxygen regulator both have left-hand
threads. Turn regulator by hand counterclockwise and tighten securely.
Attach the fuel gas regulator to the disposable fuel gas cylinder. The
regulator and the cylinder both have right-hand threads. Turn regulator by hand clockwise and tighten securely.
Check the regulator–cylinder connection for leaks.
7-3. Installing Hoses
1.
2.
3.
Replace hoses at the first sign of any defects, flaws, or damage. The hoses should otherwise be replaced every four years.
Inspect hoses for damage or leaks before each operation. Do
not allow hoses to come in contact with hot metal, molten solder, or corrosive chemicals. Do not expose hoses to fluxing
agents as these agents will deteriorate the hose materials and
cause them to leak.
Do not splice or use damaged oxy-fuel hoses.
Use only the hoses that are supplied by Miller. These hoses transport low-pressure gases from the regulator to the torch tips. The
hoses are color coded (green) for oxygen and (red) for fuel gas.
Attach the green hose to the oxygen regulator (right-hand threads)
and tighten firmly with a wrench.
Attach the red hose to the fuel gas regulator (left-hand threads) and
tighten firmly with a wrench.
OM-263357 Page 12
. If the hoses are not color coded, attach the hose connection with machined
grooves on the nut to the fuel gas regulator (left-hand threads). Attach the hose
connection with no grooves on the nut to the oxygen regulator (right-hand
threads). Tighten both connections firmly with a wrench.
4.
Close both the oxygen and fuel gas valves on torch body.
7-4. Activating The System
Open the regulator valves completely by turning knobs clockwise. Notice
the arrows on top of the knobs.
7-5. Purging The System
1.
2.
3.
Always purge gas from the system before lighting torch to prevent a possible mixed-gas explosion. Purge gas in a well ventilated area and away from flame or sparks.
With the tip removed from the torch, open the torch oxygen valve for
3−4 seconds to purge line.
Close the torch oxygen valve.
Repeat steps 1 and 2 for the fuel gas.
7-6. Testing The Equipment For Leaks
Use an approved oil-free leak detection fluid to locate possible
leaks.
Do not stand in front of or behind the regulator when opening
the cylinder valve. Never open a cylinder valve suddenly as this
can damage a regulator or cause an oxygen regulator fire.
With the system pressurized and the torch body valves closed, check
every connection and joint from the cylinder valve to the torch tip with an
approved leak detection solution (Figure 1). If leaks are detected, eliminate them before proceeding. If leaks cannot be eliminated, do not put
the equipment into service until it has been repaired or replaced.
. If the torch is not going to be in use for more than one half hour, turn
the regulator valves to the Off position.
161-013
Figure 1. Testing Equipment For Leaks
7-7. Selecting And Installing A Tip
1.
2.
Fully open the oxygen and fuel gas regulators (turn handles clockwise).
Select the desired tip. Tip sizes are represented by a number (2−7)
stamped on the copper section. Size 7 produces the largest flame.
. It is recommended that the size 2 tip not be used for gas other than
acetylene or hydrogen.
3.
Install tip and tighten with a wrench. (Do not overtighten.)
OM-263357 Page 13
7-8. Lighting Procedures (When Using Disposable Cylinders)
Follow the set-up instructions explained in Sections 7-2 thru 7-7 before
lighting the torch.
1.
2.
3.
4.
When lighting torch, keep the tip pointed away from people and
combustibles.
Open the torch fuel gas valve approximately 1/8–1/4 turn (counterclockwise) and Ignite the fuel gas using an approved friction spark
lighter.
Do not use matches or a cigarette lighter to ignite the gas.
Slowly open the torch oxygen valve (counterclockwise) until the
flame is neutralized. This is accomplished by adding oxygen until
the bright cone off the end of the tip just reaches its shortest length.
Increase the fuel gas flow by opening torch valve another 1/8 turn.
Do not use acetylene above 15 psi (103 kPa) flowing.
Increase the oxygen until the flame is neutralized. If necessary,
continue this procedure until the maximum volume of fuel and oxygen are being used and the desired flame is achieved.
7-9. Extinguishing The Torch Flame
1.
2.
Turn the torch oxygen valve to the closed position (clockwise).
Turn the fuel-gas torch valve to the closed position (clockwise).
7-10. Shutting Down The System
1.
2.
3.
Extinguish torch flame (see Section 7-9).
Turn the oxygen regulator valve knob to the closed position (counterclockwise). Notice arrow on knob.
Turn the fuel gas regulator valve knob to the closed position (counterclockwise). Notice arrow on knob.
7-11. Bleeding The System
1.
2.
3.
4.
Remove the tip from the torch.
Open the torch oxygen valve 1/2 turn until all pressure has been released from the hose and regulator, then close the torch oxygen
valve.
Open the torch fuel gas valve 1/2 turn until all pressure has been
released from the hose and regulator, then close the torch fuel gas
valve.
Secure equipment and store in safe area.
SECTION 8 − USING THE TORCH WITH HIGH
PRESSURE, INDUSTRIAL-TYPE CYLINDERS
Install cylinders in an upright position by securing to a stationary support or cylinder rack to prevent falling or tipping. Maintain a clear path from the cylinders to the work area.
Inspect equipment before use. Do not use if grease or oil is
present on equipment or if equipment is damaged. Have equipment cleaned/repaired by a qualified person.
Do not slightly open or “crack” fuel cylinder valve to blow
debris from the valve outlet. Remove the debris using nitrogen,
air, or a clean, oil-free rag.
OM-263357 Page 14
Do not use petroleum-based pipe sealants. Do not use any
sealants on metal-to-metal seals, such as hose and CGA cylinder connections. Use PTFE-based sealant (PTFE-tape) on pipe
threads.
Use only compressed gas cylinders that are approved by the Department of Transportation (DOT) with this equipment. The torch will operate
on cylinders that are available from Miller or from your local welding supply dealer.
8-1. Industrial-Type Cylinder Information
D
Industrial oxygen cylinders are pressurized to approximately 2,250
psig (15,513 kPa)
D
Industrial hydrogen cylinders are pressurized to approximately
2,250 psig (15,513 kPa).
D
Industrial acetylene cylinders are pressurized to approximately
250 psig (1724 kPa)
8-2. Installing Regulators
Oxygen regulator is identified by green color and has right-hand threads
for cylinder connection. Fuel gas regulator is identified by red color and
has left-hand threads for cylinder connection.
1. Attach the oxygen regulator to the oxygen cylinder and tighten firmly with a wrench clockwise (right-hand threads). See Figure 2.
. Always tighten regulator
connection nuts with a
wrench.
161-015
2.
Figure 2. Installing Regulator
Attach the fuel gas regulator to the fuel gas cylinder and tighten
firmly with a wrench counterclockwise (left-hand threads). Fuel gas
regulators may have left or right hand threads. A regulator connection with machined grooves in the nut indicates the regulator has
left-hand threads. If there are no machined grooves in the nut the
regulator has right-hand threads (for use with MC or B acetylene
cylinders).
8-3. Installing Hoses
1.
Replace hoses at the first sign of any defects, flaws, or damage. The hoses should otherwise be replaced every four years.
Inspect hoses for damage or leaks before each operation. Do
not allow hoses to come in contact with hot metal, molten solder, or corrosive chemicals. Do not expose hoses to fluxing
agents as these agents will deteriorate the hose materials and
cause them to leak.
Do not splice or use damaged oxy-fuel hoses.
Use only the hoses that are supplied by Miller. These hoses transport low-pressure gases from the regulator to the torch tips. The
hoses are color coded (green) for oxygen and (red) for fuel gas.
OM-263357 Page 15
2.
3.
4.
Attach the green hose to the oxygen regulator (right-hand thread)
and tighten firmly with a wrench.
Attach the red hose to the fuel gas regulator (left-hand thread) and
tighten firmly with a wrench.
Close both the oxygen and fuel gas valves on torch body.
8-4. Activating The Regulators
1.
2.
3.
4.
Do not stand in front of or behind the regulator when opening
the cylinder valve. Never open a cylinder valve suddenly as this
can damage a regulator or cause an oxygen regulator fire.
Do not activate the system with the regulator pressure adjusting handle turned in. This condition can allow high pressure
gas to damage the internal parts of the regulator which can result in a fire or explosion.
Turn the oxygen regulator pressure adjusting handle counterclockwise until no spring pressure is felt on the pressure adjusting handle.
Turn the fuel-gas regulator pressure adjusting handle counterclockwise until no spring pressure is felt on the pressure adjusting
handle.
With the oxygen cylinder between you and the regulator, slowly
open the cylinder valve until the maximum cylinder pressure is indicated on the high-pressure regulator gauge. Then, open the oxygen cylinder valve all the way.
Open cylinder valve. When using acetylene as the fuel gas, open
cylinder valve no more than 3/4 turn. When using a fuel gas other
than acetylene, open the cylinder valve completely.
8-5. Adjusting Regulator Pressures And Purging The Hoses
1.
2.
3.
4.
Verify the oxygen and fuel-gas valves on the torch body are in the
closed (off) position.
Turn oxygen regulator pressure-adjusting handle clockwise until
the low pressure gauge indicates 5 psig (34 kPa).
Always purge gas from the system before lighting torch to prevent a possible mixed-gas explosion. Purge gas in a well ventilated area and away from flame or sparks.
With no tip installed, open the torch body oxygen valve and allow
oxygen to flow for three to four seconds. This will purge the oxygen
side of the system.
Repeat steps 2 and 3 for the fuel gas. This will purge the fuel gas
side of the system.
8-6. Testing The Equipment For Leaks
Use an approved oil-free leak detection fluid to locate possible
leaks.
Do not stand in front of or behind the regulator when opening
the cylinder valve. Never open a cylinder valve suddenly as this
can damage a regulator or cause an oxygen regulator fire.
With the system pressurized and the torch body valves closed, check
every connection and joint from the cylinder valve to the torch tip with an
approved leak detection solution (Figure 3). If leaks are detected, eliminate them before proceeding. If leaks cannot be eliminated, do not put
the equipment into service until it has been repaired or replaced.
. If the torch is not going to be in use for more than one half hour, it
is recommended that the system be completely shut down (see
Section 8-11).
OM-263357 Page 16
161-013
Figure 3. Testing Equipment For Leaks
8-7. Selecting And Installing A Tip
1.
2.
Fully open the oxygen and fuel gas regulators (turn handles clockwise).
Select the desired tip. Tip sizes are represented by a number (2−7)
stamped on the copper section. Size 7 produces the largest flame.
. It is recommended that the size 2 tip not be used for gas other than
acetylene or hydrogen.
3.
Install tip and tighten with a wrench. (Do not overtighten.)
8-8. Lighting And Adjusting Torch When Using Acetylene Or
Hydrogen Fuel Gas
The following instructions are adjustment procedures for the torch when
using acetylene or hydrogen fuel gases. This equipment is designed to
operate at a set volume of gas for each tip.
Follow the set-up instructions explained in Sections 8-2 thru 8-7 before
lighting the torch.
Using less than the required volume of gas may result in overheating of the tip or equipment and can lead to an internal fire
or flashback.
Do not use acetylene above 15 psi (103 kPa) flowing.
When lighting torch, keep the tip pointed away from people and
combustibles.
. When using hydrogen, the flame from the size 2 tip will be difficult
to see. Lighting and flame adjustment should be made in a dark area
or in front of a dark background. Use of a cobalt goggle lens may
increase flame visibility.
1.
2.
3.
4.
Adjust the regulator outlet pressure to the torch by turning the regulator adjusting handle clockwise until the outlet pressure gauge indicates the recommended pressures for the tip being used (see
Section 11-1).
Slightly open the torch fuel gas valve approximately 1/4 turn and ignite the gas using an approved friction spark lighter or bunsen burner.
Do not use matches or a cigarette lighter to ignite the gas.
Continue opening the fuel gas valve until the flame is about to leave
the end of the tip or the soot being discharged disappears.
Slowly open the torch oxygen valve. Continue to open torch valve
until the flame is in its neutral condition or the desired flame is
achieved.
OM-263357 Page 17
8-9. Lighting And Adjusting Torch When Using Alternate Fuel
Gases (Propane, Propylene, Natural Gas)
The following instructions are adjustment procedures for the torch when
using alternate fuel gases. This equipment is designed to operate at a set
volume of gas for each tip.
Follow the set-up instructions explained in Sections 8-2 thru 8-7 before
lighting the torch.
Using less than the required volume of gas may result in overheating of the tip or equipment and can lead to an internal fire
or flashback.
When lighting torch, keep the tip pointed away from people and
combustibles.
. Do not use the size 2 tip for alternate fuel gases. The size 3 tip may
be difficult to light when using natural gas as the fuel.
1.
2.
3.
4.
5.
6.
7.
Adjust the regulator outlet pressure to the torch by turning the regulator adjusting handle clockwise until the outlet pressure gauge indicates the recommended pressures for the tip being used (see
Section 11-1).
Slightly open the torch fuel gas valve approximately 1/4 turn and ignite the gas using an approved friction spark lighter or bunsen
burner.
Do not use matches or a cigarette lighter to ignite the gas.
Adjust until the flame is about to leave the end of tip.
Slowly open the torch oxygen valve until a neutral flame is obtained.
Further open the torch fuel valve 1/8–1/4 turn.
Again open the torch oxygen valve until the flame is neutral.
If needed, continue this procedure until the maximum volume of fuel
and oxygen are being used and desired flame is achieved.
8-10. Extinguishing The Torch Flame And Securing Equipment
1.
2.
Turn the torch oxygen valve to the closed position (clockwise).
Turn the torch fuel gas valve to the closed position (clockwise).
8-11. Shutting Down The System
1.
2.
3.
Extinguish torch flame (see Section 8-10).
Turn the oxygen cylinder valve to the closed position (clockwise).
Turn the fuel gas cylinder valve to the closed position (clockwise).
8-12. Bleeding The System Of Gases
1.
2.
3.
4.
5.
6.
Remove tip from torch body.
Open torch oxygen valve 1/2 turn.
Observe oxygen regulator. When low pressure gauge indicates zero (0), close the torch oxygen valve.
Turn the oxygen regulator pressure adjusting handle to the left
(counterclockwise) until no spring pressure is felt on the adjusting
handle.
Repeat steps 2, 3, and 4 for the fuel gas.
Secure equipment and store in safe area.
OM-263357 Page 18
SECTION 9 − HOSE REPLACEMENT
Replace hoses at the first sign of any defects, flaws, or damage. The hoses should otherwise be replaced every four years.
Inspect hoses for damage or leaks before each operation. Do
not allow hoses to come in contact with hot metal, molten solder, or corrosive chemicals. Do not expose hoses to fluxing
agents as these agents will deteriorate the hose materials and
cause them to leak.
Use only industrial grade hose. Grade T hose is acceptable for
all fuel gases. Grade R hose is for acetylene only.
. The following instructions apply only to the torch bodies in torch mod-
els 11−1101C, 11−1102C, 11−1103C, and 11−1104C. Check instructions per your specific torch body number as stamped on the
black handle tube.
9-1. Removing Old Hose
1.
2.
3.
Lock ferrule tool in vise. Insert tool between torch body and ferrule
See Figure 4.
Grasp torch firmly and pull forward. The ferrule will slide back on the
hose. Repeat operation on second hose. Slide ferrule away from
torch.
Remove hose from torch body.
9-2. Installing New Hose
1.
2.
Check that regulator right-hand thread nut is on green/blue hose
and left-hand thread (grooved) nut is on red hose. Place new ferrule
on each hose and slide ferrule down each hose 1–2 in. (25–51 mm).
Slide the green hose over the barbed nipple. Slip hose into ferrule
tool below ferrule and slide tool against end of ferrule.
CHAMFER
FERRULE TOOL
(Part No. 7799)
3/16 in.
(5 mm)
VISE
161-010
3.
4.
Figure 4. Hose Replacement
Push metal ferrule onto barbed nipple. Slip hose into ferrule tool below ferrule and slide tool against end of ferrule.
Hold torch so that ferrule tool is resting on top of vise. Open vice
jaws to approximate width of hose. Using a plastic hammer, wood
block, or equivalent, tap lightly on end of tubing or socket until the
metal ferrule just covers the barbs of the nipples. Remove tool.
OM-263357 Page 19
5.
Repeat instructions for red hose.
Use an approved oil-free leak detection fluid to locate possible
leaks.
Close torch valves and pressurize torch (both hoses) to 10–12 psig
(69–83 kPa). Immerse torch in water and check connections and
torch for leaks (bubbles). If a leak is not observed, the torch is now
ready to use. If leaks are detected, eliminate them before proceeding. If leaks cannot be eliminated, do not put the equipment into service until it has been repaired or replaced.
6.
SECTION 10 − REGULATORS
The following regulators are recommended for use with the torch because they provide the low regulated pressures and flows necessary for
fine flame adjustment and stability.
Stock No.
Gas
Inlet Connection
Fits Cylinders
30-20-540
Oxygen
CGA 540
All Industrial
Oxygen
30-15-520
Acetylene
CGA 520
Type B And Autolite
30-15-300
Acetylene
CGA 300
Commercial
Acetylene
30-15-510
Acetylene
CGA 510
Commercial
Acetylene
30-15-200
Acetylene
CGA 200
“MC” (10 Cubic Ft)
30-15-510
LP*
CGA 510
POL
30-100-350
Hydrogen
CGA 350
Hydrogen
*
Propane or propylene-based fuels.
OM-263357 Page 20
SECTION 11 − TECHNICAL DATA
11-1. Tip Specifications
A.
Straight, Curved, And Twin-Flame Torch Tips
*
Orifice
Diameter
Gas Pressure
psig (kPa)
Consumption
Each Gas*
in. (mm)
Oxygen
Fuel
ft3/hr (L/hr)
Recom’d
Fuel Gas
w/Oxygen
2
0.006
(0.15)
2
(13.8)
2
(13.8)
0.11074
(3.1)
Acetylene,
Hydrogen
3
0.011
0.28)
4
(27.6)
4
(27.6)
0.94
(26.6)
4
0.020
(0.5)
5
(34.5)
5
(34.5)
1.88
(53.2)
5
0.029
(0.73)
6
(41.4)
6
(41.4)
3.1
(87.8)
6
0.037
(0.94)
6
(41.4)
6
(41.4)
5.38
(152)
7
0.047
(1.19)
8
(55.2)
8
(55.2)
7.52
(213)
Tip
Size
Acetylene,
Hydrogen,
Propane,
Propylene,
Natural Gas,
City Gas
Acetylene and oxygen only.
. Pressures above apply to all fuel gases.
B.
Multi-Orifice Heating Tip Specifications
Model
No.
Gas Pressure
Consumption
psig (kPa)
ft3/hr (L/hr)
BTU
Output
Recom’d
Fuel
Gases
Acetylene,
Hydrogen,
Propylene
Oxygen
Fuel
Oxygen
Fuel
13662
14
(95.5)
10
(69)
5.51
(156)
4.58
(129.7)
7050
13717
14
(95.5)
10
(69)
12.8
(362)
5.12
(145)
5000
13717
7
(48.3)
5
(34.5)
3.6
(102)
2.2
(62.3)
2400
Propane
Natural
Gas
OM-263357 Page 21
11-2. Fuel Gas And Flame Characteristics
Settings: Neutral Flame
Flame Settings
Acetylene − Oxygen
After igniting, open acetylene valve until soot disappears from end of flame.
Add oxygen until the feather
shown on the right just disappears in the bright inner
cone.
Neutral Flame
Even Mixture of Fuel and Oxygen
Carburizing (Reducing) Flame
Excess Fuel Gas
S Lower Temperature
S Less Oxidizing
Propane − Oxygen
After igniting, add oxygen
until bright inner core reaches its shortest point and
then stop. Repeat process
to force as much fuel
through the tip as possible.
Oxidizing Flame (Seldom Used)
Excess Oxygen
S Short Outer Flame
S Narrow Inner Cone
S Noisy
S Hottest
11-3. Flame And Heat Placement BTU Output Per Cubic Ft Of
Fuel Burned With Oxygen
Total BTU
Output
ft3 Gas/hr
(L Gas/hr)
Fuel Gas
Flame Temperatures
In °F (°C)
Oxygen
To Fuel
Ratio
Compressed
Air Tips
Atmospheric
Air Tips
Oxygen
1470
(41,626)
4800
(2649)
1500
(816)
6000
(3316)
25:1
2500
(70,792)
3500
(1927)
1500
(816)
4800
(2649)
5:1
911
(25,797)
3400
(1871)
−−
4600
(2538)
2:1
325
(9203)
4000
(2204)
−−
4800
(2649)
5:1
Acetylene
500
970
Propane
250
2250
Natural Gas (City Gas)
11
900
Hydrogen
55
270
11-4. Cylinder Valve Identification For Regulator Selection
. Compressed Gas Association connection numbers are also shown.
Internal
510
510
540
Internal
Threads
520
LARGE
INDUSTRIAL
FROM
60–400 Cu. Ft.
PROPANE
OM-263357 Page 22
“B”
40 Cu. Ft.
ACETYLENE
200
“C”
10
Cu. Ft.
ALL
SIZES
OXYGEN
SECTION 12 − ACCESSORIES
Straight Tip
Size 4
Twin Flame Tip
Sizes 4–6
Propane/Natural Gas
Melting Tip
Melts To 3 oz. Silver
Stock No. 13717
Acetylene/Hydrogen
Melting Tip
Melts to 3 oz. Gold Or Silver
Stock No. 13-662
Curved Tips
Sizes 2–7
Magnetic Stand
Stock No. 14014
Torch And Tips Sold Separately
Size 2–3 Tips Have Jeweled Orifice
161-012 / 161-014
OM-263357 Page 23
Effective January 1, 2019
(For Oxy-Fuel and Pressure Regulation Equipment
with a date code of BJA or newer)
This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied.
LIMITED WARRANTY - Subject to the terms and conditions below, Miller
Electric Mfg. LLC, Appleton, Wisconsin, warrants to authorized distributors
that new Miller equipment sold after the effective date of this limited warranty
is free of defects in material and workmanship at the time it is shipped by
Miller. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS. Within the warranty periods listed below, Miller will repair or replace any warranted parts or components that fail
due to such defects in material or workmanship. Miller must be notified in writing within thirty (30) days of such defect or failure, at which time Miller will provide instructions on the warranty claim procedures to be followed. Miller shall
honor warranty claims on warranted equipment listed below in the event of a
defect within the warranty coverage time periods listed below. Warranty time
periods start on the delivery date of the equipment to the end-user purchaser,
or 12 months after the equipment is shipped to a North American or international distributor, whichever occurs first.
1. 5 Years – Parts and Labor
*
Torch Handles, Cutting Attachments, Straight Cutting Torches
and Machine Torches. The use of tips other than genuine Miller
tips voids the warranty.
2.
3 Years – Parts and Labor
*
Toughcut Outfits, Series 22, 30, 32, 35, 36, 40, 46 Regulators, and
all Flowmeters, Flow Gauges, and Flowmeter Regulators
3.
2 Years – Parts and Labor
*
Series 250, 820, and Smith-Branded Specialty Gas Regulators
4.
1 Year – Parts and Labor
*
Gas Axe Cutting Torches, HVAC/Purge Regulators, 3-Stage Nitrogen Low-Pressure Blanketing Regulators, Gas Savers, Gas
Mixers, and all other Oxy-Fuel Products
*
SMITH BRANDED PRODUCTS
5.
The Little Torch, Quickbraze Torch, Handi-Heet/Silver Smith Torch
90 Days – Parts and Labor
*
Corrosive Service Regulators
Miller’s True Blue) Limited Warranty shall not apply to:
1.
2.
3.
4.
Consumable components; oxy-fuel cutting, welding, and heating tips,
or parts that fail due to normal wear.
Items furnished by Miller, but manufactured by others. These items are
covered by the manufacturer’s warranty, if any.
Equipment that has been modified by any party other than Miller, or
equipment that has been improperly installed, improperly operated or
misused based upon industry standards, or equipment which has not
had reasonable and necessary maintenance, or equipment which has
been used for operation outside of the specifications for the equipment.
Defects caused by accident, unauthorized repair, or improper testing.
MILLER PRODUCTS ARE INTENDED FOR COMMERCIAL AND INDUSTRIAL
USERS TRAINED AND EXPERIENCED IN THE USE AND MAINTENANCE OF
WELDING EQUIPMENT.
OM-263357 Page 24
The exclusive remedies for warranty claims are, at Miller’s option, either: (1)
repair; or (2) replacement; or, if approved in writing by Miller, (3) the pre-approved cost of repair or replacement at an authorized Miller service station; or
(4) payment of or credit for the purchase price (less reasonable depreciation
based upon use). Products may not be returned without Miller’s written approval. Return shipment shall be at customer’s risk and expense.
The above remedies are F.O.B. Appleton, WI, or Miller’s authorized service
facility. Transportation and freight are the customer’s responsibility. TO THE
EXTENT PERMITTED BY LAW, THE REMEDIES HEREIN ARE THE SOLE
AND EXCLUSIVE REMEDIES REGARDLESS OF THE LEGAL THEORY. IN
NO EVENT SHALL MILLER BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING LOSS
OF PROFIT) REGARDLESS OF THE LEGAL THEORY. ANY WARRANTY
NOT PROVIDED HEREIN AND ANY IMPLIED WARRANTY, GUARANTY,
OR REPRESENTATION, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE, ARE
EXCLUDED AND DISCLAIMED BY MILLER.
Some US states do not allow limiting the duration of an implied warranty or the
exclusion of certain damages, so the above limitations may not apply to you.
This warranty provides specific legal rights, and other rights may be available
depending on your state. In Canada, some provinces provide additional warranties or remedies, and to the extent the law prohibits their waiver, the limitations set out above may not apply. This Limited Warranty provides specific
legal rights, and other rights may be available, but may vary by province.
Mil oxy-fuel warr 2019-01
OM-263357 Page 25
Safety Pack
Order Form No. 5145 w/DVD
This Kit Includes:
30
30
1
1
1
“37 Violations Safety Quiz” Brochures
Safety Meeting Guides (English, French, Spanish)
41 Minute Oxy-Fuel Safety Video
Set of 6 Miller Cartoon Safety Posters
Post-Safety Video Test and Answer Key
(may be duplicated)
To Order Safety Materials, Contact
Customer Service.
Miller Electric Mfg. LLC
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
International Headquarters−USA
USA Phone: 920-735-4505 Auto-Attended
USA & Canada FAX: 920-735-4134
International FAX: 920-735-4125
For International Locations Visit
www.MillerWelds.com
ORIGINAL INSTRUCTIONS − PRINTED IN USA
E2019 Miller Electric Mfg. LLC 2019−01