0781-1153 - Victor DFM 150 Dual Flowmeter Regulator, CGA-580, Argon/Helium

Precision Dual Gas Control for Advanced Fabrication

The Victor DFM 150-580 Dual Flowmeter Regulator (0781-1153) represents a specialized solution for complex welding environments requiring simultaneous gas delivery management. Engineered by Victor, a leader in gas control technology, this medium-duty regulator is specifically designed to monitor and control two separate gas flows from a single cylinder source. This capability is indispensable in advanced TIG and MIG welding applications where both a primary shielding gas and a secondary back purge are required to ensure weld integrity, particularly when working with stainless steel or titanium piping and vessels.

Constructed with a machined brass body, the DFM 150 ensures durability and resistance to corrosion in industrial settings. The internal mechanism features a Teflon seat and a brass piston, actuated by a music wire spring, providing reliable pressure regulation and flow stability. The unit is equipped with a sintered bronze inlet filter, which plays a critical role in preventing particulate contamination from entering the regulator, thereby extending the service life of the internal components and ensuring consistent gas purity at the weld pool. The dual flow tubes are protected by a high-strength Lexan cover tube, offering excellent visibility of the flow ball while shielding the tubes from accidental impact damage common in busy fabrication shops.

Technical specifications highlight the versatility of this unit. It features a CGA-580 inlet connection, compatible with standard high-pressure cylinders for Argon, Helium, and Nitrogen (using Argon scale). The flowmeters are individually calibrated, offering a delivery range of 5 to 50 SCFH for Argon and 20 to 150 SCFH for Helium. This dual calibration allows operators to precisely adjust flow rates for different gases without needing separate equipment. With a maximum inlet pressure rating of 3000 PSIG and a preset outlet pressure of approximately 25 PSIG, the DFM 150 provides a stable downstream flow, isolating the flowmeter readings from cylinder pressure fluctuations. This regulator is an essential tool for maintenance, repair, and structural fabrication sectors where efficiency and precision are paramount.