Oxy-fuel cutting and welding carry inherent risks, and flashback is one of the most serious. Flashback arrestors are a small but critical piece of safety equipment that can prevent a dangerous situation from becoming catastrophic.
ATL Welding Supply stocks flashback arrestors for both cutting torches and gas regulators. Discover name-brand and generic options available at pricing that makes proper protection accessible for every setup. Learning about what these devices do and why they matter is the first step toward running a safer oxy-fuel station.
Flashback Arrestors for Torches and Regulators: What We Stock
Our selection covers the key connection points within an oxy-fuel system. Here is how our flashback arrestors inventory is organized:
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Torch-mounted arrestors: Installed directly at the torch body to stop flame or reverse gas flow at the source
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Regulator-mounted arrestors: Positioned at the regulator end of the hose to add protection near the gas supply
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Sets: Most of our flashback arrestors are sold in pairs or sets, covering both the oxygen and fuel gas sides of the system simultaneously
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Individual units: A limited selection of individual arrestors is available for setups where only one side needs replacement or addition
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Thread size: All stock arrestors use B-size 9/16-18 thread fittings. A-size fittings are available on special order, so get in touch if you need them
Browse our featured products to see current availability across our oxy-fuel safety accessories range.
How Flashback Arrestors Work and Why They Matter
Flashback occurs when the flame from a cutting or welding torch travels back through the hose toward the gas supply. This can happen when the torch tip pressure drops too low, when the tip becomes blocked, or when the gases mix inside the hose in the wrong ratio.
The result ranges from a loud pop to a sustained burn traveling toward the regulator and gas cylinder. It is a serious hazard in any shop or job site environment.
Flashback arrestors address this in two ways. First, they act as reverse-flow check valves, blocking any backward flow of gas through the hose. Second, many models include a flame barrier that extinguishes any flame that does manage to travel back through the line. Together, these two mechanisms stop flashback before it can reach the hose, regulator, or cylinder.
Reverse gas flow is one of the most common causes of flashback. Stopping that flow at critical connection points reduces the chance of escalation.
Name Brand and Generic Options at Competitive Prices
Different applications call for different levels of equipment. Generic arrestors handle the same core function as branded models and meet standard safety requirements for most oxy-fuel setups.
Name-brand options are worth considering for high-use environments, professional shop settings, or anywhere that equipment durability over extended service life is a priority. Either way, you're getting a device that does what it needs to do at a price that makes stocking a spare pair practical.
Pair your flashback arrestors with the rest of your oxy-fuel setup by browsing our cutting and torch equipment. Find torches, tips, regulators, and accessories to complete your station.
Safe, Affordable, and Ready to Ship
ATL Welding Supply has been supplying oxy-fuel equipment and safety accessories to welders and fabricators since 2001. Low overhead and bulk buying keep our prices competitive across the board, and flashback arrestors are no exception.
A-size fittings aren't something we keep in regular stock, but special orders are straightforward to arrange.
Got a question about thread size, compatibility, or which arrestor suits your torch setup? Contact our team, and we will get back to you with a straight answer.
