0560940879 - ESAB 1/4-Inch NPT Brass Check Valve for Gas Equipment

Essential Safety for Your Welding Gas Setup

When you are focused on laying down the perfect bead, the last thing you want to worry about is the safety of your gas equipment. The ESAB Check Valve (0560940879) is a small but mighty component that plays a huge role in keeping your shop safe. Designed to stop gas from flowing backward into your hoses or regulators, this check valve is a must-have for any serious welder using oxy-fuel or other gas-shielded processes connected to manifolds or complex setups.

This specific model features a 1/4-inch Female Inlet and a 1/4-inch Male Outlet, a common configuration that allows it to be easily adapted to various regulators and piping points. Made from durable brass, it is tough enough to handle the daily grind of a welding shop. Whether you are setting up a new station or upgrading an old regulator that lacks built-in safety features, adding this check valve is a smart, low-cost investment in your safety.

Why is a check valve important? In welding and cutting, unequal pressures can sometimes force one gas back up the other gas line. If oxygen mixes with fuel gas inside a hose or regulator, it creates a highly explosive mixture. This check valve acts as a one-way street, letting gas flow out to your torch but slamming shut if gas tries to push back. It’s a simple mechanical barrier that prevents dangerous cross-contamination before it starts.

Easy to Install and Maintain

Installing the ESAB check valve is quick and easy. Simply thread it into the appropriate port—ensuring you match the flow direction arrow on the valve body—and tighten it down. It’s compact, so it won’t add unnecessary bulk to your rig. While it doesn't replace a flashback arrestor (which stops fire), it works hand-in-hand with one to provide complete protection. Keep your equipment running smoothly and your shop safe with this reliable ESAB component.