0781-3873 - Victor HSR 2570-580 Argon/CO2 Flow Meter Regulator

Precision Gas Control for Industrial Applications

The Victor HSR 2570-580 (0781-3873) is a premium medium-duty single-stage regulator and flowmeter combination designed to meet the rigorous demands of industrial and laboratory environments. Engineered for accuracy and durability, this unit provides a reliable solution for controlling shielding gases in MIG (GMAW) and TIG (GTAW) welding processes. The HSR 2570 series integrates a pressure regulator with a flow metering device, allowing operators to maintain precise flow rates essential for high-quality weld integrity.

Constructed with a forged brass body and housing cap, the regulator is built to withstand the physical stresses of shop environments while maintaining a compact footprint (7" x 4.25" x 6.25"). It features a fabric-reinforced neoprene diaphragm that offers superior sensitivity and longevity compared to standard elastomeric diaphragms. The internal mechanism includes a stem-type seat and a bronze sintered inlet filter, which effectively prevents particulate contamination from entering the regulator, thereby extending its service life. Safety is paramount in the design, evidenced by the external reseating relief valve that protects the unit from over-pressurization.

Technically, the HSR 2570-580 is calibrated for Argon, Argon/CO2 mixes, and Helium, offering a delivery range of 5 to 50 SCFH (Standard Cubic Feet per Hour). It is rated for a maximum inlet pressure of 3000 PSIG and connects via a standard CGA 580 inlet. A key technical advantage of this model is its preset outlet pressure of 25 PSIG. This specific calibration is engineered to minimize surge—the initial burst of gas that occurs when the welding torch trigger is pulled—thereby ensuring consistent gas coverage from the very start of the weld and reducing overall gas consumption.

This unit is an ideal choice for facilities requiring dependable gas delivery systems that combine robust construction with fine-tuned flow control. Whether utilized in manufacturing, automotive fabrication, or research laboratories, the Victor HSR 2570-580 delivers the performance and reliability associated with the Victor brand.