Oxy acetylene flashback arrestor requirements. Preventing Welding Flashback - Oxy-acetylene torches have been used for many years for cutting, welding, brazing, and heating of metals. The valve is protected from damage by the sintered stainless steel flame trap. In accordance with the relevant flashback arrestor standard, testing will be done for, Through Flow, Reverse Flow and Leak Tightness, we will also be inspecting the labeling of the flashback arrestor for compliance. Flashback arrestors must display clear markings indicating their intended gas service (e. •They provide protection against flashback and reverse flow of gases to the operator at the torch or equipment point of use. Most modern-day flashback arrestors also contain check valves intended to prevent backflow of gases in addition to protection from flashbacks. When a flashback occurs, the flame burns rapidly ‘upstream’, generally causing a loud explosion. For additional safety, flashback arrestors may also on occasions be fitted to the blowpipes, especially if access to the cylinders is confined or they are remote from the operator by virtue of Using IOXYGEN flashback arrestors COUId effectively enhance workplace safety and provide much more secure surroundings for users. For many years hydraulic flashback arrestors were the only type available. It can result in serious injury and equipment damage. REQUIREMENTS: It is the responsibility of the employer/owner/operator to ensure that Flashback Arrestors are fitted to all oxy/fuel plants and comply to the manufacturer’s standard and NZ Health and Safety requirements. The flashback arrestor is designed to prevent the backflash of a flame through the torch into the hoses and regulator which can cause the torch and hoses to blow up and cause severe injury to the operator. Jul 15, 2025 · Safe storage and handling is critical for keeping and transporting compressed gases. Fires due to incorrect use of the gases and the equipment must be avoided at all costs. , “Acetylene” or “Oxygen”), maximum rated pressure, and flow direction. There are basically two types – hydraulic and dry type flashback arrestors. Flashback Arrestors In addition to non-return valves, flashback (flame) arrestors manufactured to BS EN 730-1 should be fitted onto the pressure regulators on both the acetylene and oxygen cylinders. Causes that can trigger a flashback include: Worn or improperly maintained Equipment, Operator Error, improper monitoring of cylinder pressures, and many o Preventing Welding Flashback Oxy-acetylene torches have been used for many years for cutting, welding, brazing, and heating of metals. Applications They are vital items of safety enhancement. With the following functions, flashback arrestors can stop backfire and prevent accidents. Note: All brands or types of flashback arrestor that do not meet the relevant standards will be rejected, as will torch end “Flashguards” and non return valves on their own A flashback is where a gas flame moves ‘upstream’ into hoses, regulators and even gas bottles and cylinders. Here's how to prevent flashback when welding with oxy acetylene torches. DUST FILTER Protect flashback arrestors free from dirt and grease. They are used to prevent damage to equipment, but more importantly, to prevent personal injury. A Guide To The Selection Of Flashback Arrestors This booklet is designed to help you decide whether you need flashback arrestors and help you choose the best models for your needs. g. Reverse flow check valve prevents gas from backing up and mixing into the supply system. NFPA and OSHA Compliant Safety Devices Pipeline flashback arrestors are safety devices that are used on pipelines conveying flammable gas. Jan 28, 1992 · Equipment for Welding Operations This is a further response to your memorandum of October 4, 1991, in which you sought guidance as to when flashback arrestors and backflow protective equipment are required in fuel-gas supply systems, in keeping with the requirements of 29 CFR 1910. They are often integrated into gas regulators, hoses, or directly on welding or cutting torches. Gas Pressure: One cause of fires and explosions is high acetylene Dec 14, 2025 · The presence of these marks confirms the arrestor has been tested to withstand the extreme conditions of a flashback and successfully prevent flame transmission. Buy your flashback arrestors online from BOC today. 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. FLASHBACK ARRESTORS What everyone should know about flashback arrestors and associated safety devices. 253, Oxygen-fuel gas welding and cutting. , oxygen, acetylene) and the specific requirements of the application. 3. If un-checked it can continue through the torch into hoses, regulators and gas bottles/cylinders. Workers most at risk of injury from flashback includes those who use portable and mobile oxy/fuel gas systems for welding, heating or cutting metal in industries such as plumbing, engineering, demolition, farming, lift installing The regulations pertaining to the use and maintenance of oxy-acetylene equipment were updated in late 2014 under The Acetylene Safety (England and Wales and Scotland) Regulations 2014 and included a new mandatory requirement to use suitable flashback arrestors. The equipment used today is safe, but every year, hundreds of employees are injured or die as a result of improper use. Flashback arrestors from BOC are crucial when welding and cutting with gas to minimise the risks of flames and explosions. The What, Where, and When of Hose Type Flashback Arrestors Harris Products Group Flashback arrestors and check valves are safety devices designed for oxy-fuel systems to prevent or control damage from an occurrence like a flashback. Design Variations: Flashback arrestors come in different configurations depending on the type of gases used (e. Knowledge and precautions can prevent fires and violent explosions. 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 ships. The equipment used •Torch and Point of Use flashback arrestors are combination reverse flow check valve and flame barrier in one body. . rhd56, kwkm, fymji, ekifa0, juut, tt6x, mibs, puw4yb, 7iglg, e7qd5,