Oxy acetylene flashback arrestor requirements. A mixture of 35% Acetylene and 65% Oxygen has the greatest amount of explosive force and any flashback arrestor you choose should be tested to provide protection under the most severe You must ensure the flashback arrestor is compatible with the type of gas and equipment you are using and comply with AS4603-1999 Flashback Safe storage and handling is critical for keeping and transporting compressed gases. Acetylene Flashback Arrestor Sintered stainless steel flame trap quenches the flashback flame before it travels back further into the system causing damage and possible injury. On an ongoing basis Flashback arrestors are mandatory on both the torch and cylinder/regulator ends during gas welding with Dissolved Acetylene and Oxygen to prevent explosions and fire hazards. Here's how to prevent flashback when welding with oxy At the completion of testing of either the flashback arrestors themselves, or the oxy/fuel gas set, you will receive a written report for each detailing the condition What is a flashback arrestor? A flashback arrestor is designed to contain a flashback and prevent it from penetrating into upstream equipment (i. , “Acetylene” or “Oxygen”), maximum rated pressure, and flow direction. How can you tell if the torch you are using has Flashback Arrestors and Backflow Protective Equipment for Welding Operations. Reverse flow The presence of these marks confirms the arrestor has been tested to withstand the extreme conditions of a flashback and successfully prevent flame transmission. There is potential for flashback to occur with any oxy-fuel system, whether you use oxy-acetylene or oxy-LPG (oxy-propane). g. Our interpretation letters explain these Flashback arrestors must display clear markings indicating their intended gas service (e. OSHA requirements are set by statute, standards and regulations. Flashback arrestors . hoses, The choice of a fuel gas is based on its ability to burn in air or oxygen and will be dependent on the specific requirements of the job, as well as the location at A common inside diameter of oxy-fuel gas hose is 1/4 inch. Pressure regulators reduce high cylinder pressures to safer levels while flashback arrestors stop reverse flow and flashbacks - enabling safe use of compressed gases like oxygen and acetylene on The flashback arrestors are suitable for most industrial gases and fuel gases such as acetylene, hydrogen, methane, propane, propylene and butane as well as oxygen and compressed air. The flashback can occur on either the oxy or the fuel gas line, To prevent flashbacks, flashback arrestors must be installed on the outlets of both regulators, and/or torch inlets. Flame or flashback arrestors used in oxy-acetylene equipment setups are a key component of The Series 801-7007 and 801-7008 Flashback Arrestor is an economically priced safety device suitable for installation at the inlets of hand or machine oxy-fuel gas torches. If you calculate the volume of 100 feet of hose with an inside diameter of 1/4 inch, this means, should oxygen enter the fuel gas hose or They may be small, but they are mighty. The device must be Oxy acetylene testing requirements for Australia require flashback arrestors to be tested after the manufacturing process. e.