Code of Practice: Safety and Health at Work for Gas Welding and Flame Cutting 2 1.2 Scope and application 1.2.1 In this COP, gas welding and flame cutting refer to a welding or cutting operation with a flame produced by mixing a fuel gas and an oxidant gas in a blowpipe. Safety in gas welding, cutting and similar processes Page 7 of 11 Protecting cylinders from flashbacks Fit flashback arresters to both the oxygen and fuel gas hoses near to the regulators. Replace bad hoses. Although there is a color code that gas tanks should adhere to, this piece of equipment is, unfortunately, less likely to follow the standards of uniformity that gas hoses do. During welding, the hoses should always be protected from falling objects, vehicles running over them, and from being stepped on, as these actions can also damage the hoses. The primary function of a gas regulator is to control gas pressure. Flashback arresters are safety devices that prevent a flame from travelling back into the cylinders in the case of a backfire. Porosity in the weld bead and poor bead color can result from entrapped gas impurities in the line. Tip Cleaner and Spark Lighter. Colour code and safety. Gas Pressure: One cause of fires and explosions is high acetylene pressure. ABN Oxygen Acetylene Hose 1/4 Inch B Fittings Twin Welding Hose Oxy Acetylene Torch Hose Cutting Torch Hoses, 25 Foot. Torch Tips 7. 10. Hoses with tears, burns, fraying or cuts should be replaced with new industry-approved fitted hose to the standard BS EN 1256. electrode holders should be kept away from electrical power sources and compressed gas cylinders. Misc. Here at Gas UK, we supply the Oxy fuel products in an assortment of lengths, allowing you to create a respective cut. Inspect equipment for leaks at all connections using approved leak-test solution. Never use matches or a cigarette lighter to ignite the oxy-acetylene torch; an approved friction lighter should be used. The oxygen and fuel gas hoses are connected between the welding torch and the gas bottles, the gases passing through flashback arresters and pressure regulators. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. When the equipment is not being used, hoses should be hung away from the floor and away from things that might damage them. 99. j. Both the fuel gas and oxygen at suitable pressure fed through hoses to the welding torch. Equipment # 1. The current standard for oxy-fuel gas lines is the oil and flame-resistant T-grade hose. 26. The intention is to protect people at work and others who may be affected by the work activity, and to reduce The oxygen hose is green and the fuel hose is red. Welding equipment includes the welding machines, hoses, cables, gas cylinders, and other attachments. Gas Hoses 5. These gases ignite to burn at the nozzle. Hoses. This document specifies requirements for rubber hoses for normal duty of 2 MPa (20 bar) and light duty 24. Care should be taken to see that the hoses are not interchanged. Only 4 left in stock - order soon. Explanation: In gas welding, the hoses are mainly used for making connections between the gas torch and the regulators, which should be made strong, light and flexible enough to make torch movements smooth. The cutting torch is connected to the hoses in place of the welding handle and is used for cutting thicker metal that can be cut with the cutting attachment, or for heavy duty cutting work. These control valves are used to control the flow of oxygen or fuel gas to the mixing chamber. Wear gauntlet gloves when gas welding or cutting. Replace bad hoses. Inspect hoses for leaks and worn places. Matches or butane lighters should not be carried in pockets when using the oxy fuel gas welder. i. Gas welding equipment — Rubber hoses for welding, cutting and allied processes 1 Scope This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. For your Safety, all our Oxygen, Acetylene and Propane Gas Hose sets are reinforced and fitted with Check Valves at the Torch end. General Gas Welding Safety Tips. Hoses particularly are prone to cracking at the key bend points, usually at either end within 10cm of the fittings. Knowledge and precautions can prevent fires and violent explosions. The fitting of a flashback arrester is not a substitute for safe working practice. Single lines, double vulcanized, or double multiple stranded lines are available. The type of gas the hose will be carrying is important because the connections will have different threads for different types of gas. NEVER strike an arc on a compressed gas cylinder. Wear flame resistant clothing when gas welding or cutting. Reinforced rubber hoses specially made for the purpose are employed. 25. When mixed together in correct proportions within a hand-held torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg.C. The backfire reaches only into the welding or cutting torch tip and it never travels beyond the torch tip. The equipment used today is safe, but every year, hundreds of employees are injured or die as a result of improper use. These hoses are colour coded for easy identification. Best Seller in Gas Welding Hoses. Only approved gas hoses for flame cutting or welding should be used with oxyfuel gas equipment. Only approved gas hoses for flame cutting or welding should be used with oxyfuel gas equipment. We show you the basics of setting up a 100% pure argon gas bottle with a regulator. When no welding is to be performed, all electrodes must be removed from the holders and the machine disconnected from the power source. 6) Gas Hoses: The gas hoses are used to transfer oxygen and fuel gas from the cylinder to the welding torch. Gas Metal Arc Welding (also known as GMAW, and most commonly referred to as MIG welding) uses a wire electrode on a spool. An Oxy fuel hose is a welding gas hose that’s used to cut or weld metals. Personal safety wear when welding or cutting, always use goggles with double lenses (carrying the CE mark) to protect your eyes against glare … Use a flint lighter to ignite the flame. The hoses used are specifically designed for welding and cutting.The hose is usually a double-hose design, meaning that there are two hoses joined together. including hoses, fittings, and regulators, be properly maintained. Gas regulators. A dedicated storage facility should be provided for cylinders containing acetylene or oxygen. Series 7141/7142 is a premium single line welding hose featuring a flame resistant and oil resistant tube and cover. Hoses between the torch and the gas regulators should be colour-coded; in the UK: red for acetylene, and blue for oxygen. Welding, flame cutting and allied processes Page 4 of 43 Health and Safety Executive Preface The main aim of this publication is to promote safer use of compressed gases in gas welding, flame cutting and related processes. Inspect hoses for leaks and worn places. This document specifies requirements for rubber hoses for normal duty of 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure of 1 MPa (10 bar) and with bore up to and including 6,3 mm]. Stock Oxygen Hose, Acetylene Hose and Propane Hose sets are in 5 Metre & 10 Metre Lengths, longer lengths available. But the flashback is the more dangerous type and in this case, the flame clearly reaches the fuel gas supply source through cutting torch and hoses. The size of hose should be matched to the connectors, regulators, and torches. You’ll find a wide range of the Oxy hoses, suiting some of the most diverse industrial needs and requirements. The proper storage of this equipment is essential to the performance of your operation. The size of hose should be matched to the connectors, regulators, and torches. Use a flint lighter to ignite the flame. This welding electrode is fed automatically onto the 2 ends of the weld piece that need to be joined together, and the electrical current creates an … FREE Shipping by Amazon. Compressed Gas Cylinders: Compressed gas cylinders differ widely in capacity, design and colour code. General Gas Welding Safety Tips. Protect hoses and cylinders from sparks, flames and hot metal. Both gases mixed there and form a flammable mixture. Red Series 7141 is only for fuel service and is compatible with commonly used fuel gases, including acetylene, hydrogen, natural gas, propane and propylene. Preventing Welding Flashback Oxy-acetylene torches have been used for many years for cutting, welding, brazing, and heating of metals. Inspect equipment for leaks at all connections using approved leak-test solution. The flame is hot enough to fuse the metal surfaces together for welding, 11. Braze welding differs from brazing in that the joint design for braze welding is similar or identical to that used in gas welding. $27.99 $ 27. The flame burns back into or even beyond the mixing chamber and may travel through hoses. Hoses used for gas welding torches should be strong, non-porous, flexible and light. This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. In most of the countries, however, the standard size for these cylinders is 6 to 7 m 3 and are painted black for oxygen and maroon for acetylene. A kink will also hinder the gas flow. Protect hoses and cylinders from sparks, flames, and hot metal. All Gas Equipment should be regularly checked by a competent person, checks should be made for leaks and signs of wear. Get it as soon as Mon, Jan 18. In general, welding hose can be of two types that are twin welding hose and double welding … Check your gas hoses. Single lines, double vulcanized, or double multiple stranded lines are available. We also go over the pressure, and assembly. For this reason, it is even more important that you check your gas tanks, as well as the hoses, before beginning work. The storage facility should be separated from other spaces by gas tight divisions and should have direct access to the open deck. For long lengths of hose, fit arresters on both the torch and the regulator. Welding Gas Tank Colors in the United States. i. Capillary action is not a factor in the formation of a bond. 4.5 out of 5 stars 362. 23. Storage activities should include efforts to keep the equipment from taking on excess dirt, debris, and moisture. 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