3100211 - Harris 355-2 Argon Flowmeter Regulator Kit with 10ft Hose

Harris Model 355-2 Argon Flowmeter Regulator Kit

The Harris Model 355-2Ar-58010 (SKU: 3100211) is a premium shielding gas kit designed for industrial and commercial welding applications requiring precise control of Argon and Argon-mix gases. This integrated unit combines a pressure regulator and a flowmeter into a single, compact brass assembly, engineered to deliver consistent performance in MIG (GMAW) and TIG (GTAW) processes. The regulator is pressure-compensated to 20 PSIG, ensuring that flow readings remain accurate even as cylinder pressure fluctuates, a critical feature for maintaining weld quality and reducing gas waste.

Constructed with a solid brass body and bonnet, the Model 355-2 is built for durability and longevity in shop environments. It features a neoprene diaphragm that offers superior sensitivity and pressure control compared to standard rubber diaphragms. The internal design utilizes a one-piece encapsulated seat with a built-in filter; this advanced filtration system protects the PTFE Teflon® seat from particulate contamination, which is a common cause of regulator failure. The unit is capable of handling a maximum inlet pressure of 3000 PSIG and provides a flow capacity of up to 70 SCFH.

The flowmeter component features an easy-to-read flow tube with a durable cover. The tube is dual-calibrated, providing scale readings for both Argon and CO2, although the CGA 580 inlet is specifically designed for Argon and Argon-mix cylinders. A sensitive needle valve allows operators to make fine fingertip adjustments to the flow rate, ensuring optimal shielding coverage. This kit comes complete with a 10-foot, 3/16-inch approved inert gas hose, making it a ready-to-use solution for setting up new welding stations or replacing aging equipment. The outlet connection is a standard 5/8" - 18 (F). This product is UL listed and backed by Harris's reputation for quality gas equipment.