VEVOR Oxygen Acetylene Regulator Set, Oxy-Acetylene Regulators, 0-4000PSI and 0-500PSI Welding Gas Gauges with CGA-540/CGA-510 Inlet Connection & 9/16"-18 Outlet Connection, PC Knob Adjustment

CGA-540 and CGA-510 Inlet Connections for Oxygen and Acetylene

The CGA-540 inlet on the oxygen regulator and the CGA-510 inlet on the acetylene regulator are used in this set of oxygen and acetylene regulators. Because these are common connection types, the acetylene side fits larger acetylene cylinders, and the oxygen side fits most American-style oxygen cylinders. Because torch connections are intentionally different to prevent cross-connection, matching the correct fitting to each gas is not optional.

Inspect the acetylene tank before purchasing. Verify your cylinder before ordering because the CGA-510 acetylene connection is designed for larger acetylene cylinders, not smaller MC tanks. Both regulators use a B-B fitting type. Buying the cylinder match up front ensures the regulators seal correctly on your tanks from the first hookup and spares you the trouble of a return.

Dual Gauges at 0-4000 PSI and 0-500 PSI for Clear Monitoring

Each regulator has a gauge appropriate for the gas it regulates. The acetylene regulator reads 0 to 500 PSI, which matches the much lower pressures acetylene operates at, while the oxygen regulator reads 0 to 4000 PSI, covering the high pressure inside a full oxygen cylinder. Instead of one large dial with a barely moving needle, you can get a readable, accurate display by sizing each gauge to its gas.

Clear pressure monitoring is more than just a convenience; it's a safety issue. A gauge that reads clearly in that lower range helps you stay in the safe zone because acetylene, in particular, has a hard pressure ceiling that you should never exceed. Regarding oxygen, you can monitor your cylinder level as it drains thanks to the broad 4000 PSI range. You can keep your setup safe and your gas flow under control by quickly reading both pressures.

Brass-Body Oxygen Acetylene Regulator Set for Airtight Sealing

For good reason, brass is the standard material used to construct the main bodies of this oxygen acetylene regulator set. When controlling pressurized gas, brass seals tightly, which is essential because any leak at the regulator is a safety risk and wastes gas. A solid brass body holds an airtight seal consistently, rather than loosening or leaking over time.

Additionally, brass can withstand the demanding conditions and high pressure of frequent use. The regulators continue to function accurately for a long time because they resist the wear and corrosion that would weaken a less expensive material. Strong sealing and durability are ideal for a tool that handles flammable acetylene and high-pressure oxygen. Their brass construction makes these regulators reliable enough for daily use in a functional torch setup.

9/16"-18 RH and LH Outlets for Correct Torch Hookup

Outlet directions vary by gas for safety reasons, and the connections meet welding standards. The acetylene regulator has a 9/16"-18 left-hand outlet, while the oxygen regulator has a 9/16"-18 right-hand outlet. Because fuel gas fittings are left-hand threaded, you cannot inadvertently connect an oxygen hose to a fuel line or vice versa. This RH/LH difference is deliberate throughout the industry.

These outlets connect to standard oxy-acetylene torch hoses without special adapters because they use standard sizing. Following the same standard, the left-hand acetylene fitting is often marked with a groove on the nut. Using standard RH and LH outlets maintains built-in safety by preventing a hazardous mismatch between the fuel and oxygen sides of your setup and ensuring your current hoses and torch thread on correctly.

Complete Regulator Set for Cutting and Welding

For cutting, welding, brazing, and heating, this oxygen acetylene regulator set includes a matched pair of regulators. Buying the two together ensures the acetylene and oxygen regulators are built to work as a system, with the right gauges and fittings on each side, rather than assembling mismatched parts and hoping they fit one another.

That matters for anyone installing or replacing a torch rig. Knowing the acetylene side has its 500 PSI gauge and CGA-510 inlet, and the oxygen side has its 4000 PSI gauge and CGA-540 inlet, eliminates guesswork. At 5.2 pounds, the pair is a reasonable weight to mount on your cylinders. For fabricators, repair shops, and metalworkers, having both regulators ready to install together ensures that your setup operates safely and correctly.

PC Knob Adjustment on This Oxygen Acetylene Regulator Set

This oxygen acetylene regulator set has PC adjustment knobs for smooth turning and a comfortable grip. That may seem insignificant, but how the knob feels has an impact on how accurately you can adjust the gas because you touch it each time you set your working pressure. Instead of jumping over the desired pressure, you can make small, controlled adjustments with a smoothly turning knob.

Accurate control matters for work quality. Fine-tuning the gas pressure helps you achieve a cleaner, more consistent flame, which is essential for both cutting and welding. A comfortable grip also makes adjusting the regulators easier in a cold shop or while wearing gloves. This kind of everyday usability detail can mean the difference between struggling with your equipment and getting to work: smooth, precise knob adjustment.