312-11 - Acetylene Cylinder Cap Fine Thread 3-1/2-11

Don't Let a Damaged Valve Ruin Your Workday

Every welder knows the drill: you load up the truck, secure the tanks, and head to the job site. But if you're hauling acetylene cylinders without a cap, you're not only risking a massive fine from the DOT, you're risking your safety and your equipment. The Western Enterprises 312-11 Cylinder Cap is the heavy-duty solution for keeping your acetylene tanks safe and legal. Designed specifically for cylinders with fine threads, this cap is a must-have replacement for those that get lost or banged up around the shop.

One of the most confusing parts of swapping tanks is dealing with different thread sizes. This particular cap features the 3-1/2" x 11 thread pitch, often called "fine thread." It's distinct from the coarser threads found on other bottles. If you have an acetylene tank that requires many turns to seat the cap, or if the threads on the collar look tightly spaced, this is likely the replacement part you need. It spins on smoothly and locks down tight, giving you peace of mind that your valve is shielded from falling tools, shifting loads, or accidental drops.

We've all seen what happens when a tank falls over. If the valve hits the concrete, it can snap off, creating a dangerous situation instantly. This steel cap acts as a helmet for your tank. It takes the beating so your valve doesn't have to. Whether you are storing empties in the cage or transporting fulls to a remote site, having a good cap on every bottle is professional best practice. It shows you care about safety and protects your investment in the gas and the cylinder deposit.

In addition to impact protection, keeping this cap on helps keep the grease and grime out of your valve threads. Nothing is more frustrating than trying to attach a regulator to dirty threads or having a leak because of grit in the connection. By keeping the 312-11 cap screwed on whenever you aren't welding, you ensure that when it's time to spark the torch, your gear connects cleanly and safely. Don't get caught without one—keep a spare 312-11 in your truck or tool crib.