CGA-200 Female to CGA-520 Male Acetylene Adaptor

Connect Your B-Tank Regulator to MC Cylinders

Every welder and HVAC tech knows the frustration of arriving at a job site only to find that the gas cylinder provided doesn't match the regulator on the truck. The Western Enterprises WES314 Acetylene Adaptor is the problem-solver you need in your kit. This handy brass fitting allows you to connect your standard "B" tank regulator (CGA-520 connection) to the smaller, more portable "MC" acetylene tanks (CGA-200 connection). It is the perfect accessory for mobile repair work where carrying large tanks isn't feasible, but your heavy-duty gear is still required.

Built tough for the field, this adaptor is machined from solid brass. Not only does this ensure a long service life, but it also prevents sparking—a critical safety feature when working with acetylene. The hex nut design is sized at 15/16", making it easy to tighten down with your adjustable wrench for a secure, leak-free seal. Weighing just over 0.2 lbs, it adds virtually no weight to your tool bag but adds immense versatility to your setup.

Using the WES314 is straightforward. Simply thread the female end onto the MC tank valve and connect your B-tank regulator to the male end. It is rated for up to 500 PSIG, covering the pressure ranges you will encounter with standard acetylene cylinders. Please remember that adaptors like this are designed for operational use and should be removed when the equipment is not in use or during transport. It is not a permanent fixture.

Don't get stuck without the right connection. Whether you are soldering copper pipes, brazing HVAC lines, or doing light oxy-fuel cutting, having the ability to adapt between tank sizes can save you a trip back to the shop. Trust in American-made quality with Western Enterprises fittings to keep your flame steady and your work environment safe.