0781-2704 - Victor GRF400-320 CO2 Flowmeter Regulator with 10ft Hose

Victor 0781-2704 GRF400-320 Flowmeter Regulator Overview

The Victor 0781-2704, also known as the GRF400-320, is a precision-engineered flowmeter regulator designed specifically for light-duty industrial and commercial applications utilizing Carbon Dioxide (CO2). As part of the GRF400 series, this unit represents a compact and economical solution for professionals requiring accurate gas flow measurement and control without the bulk or expense of heavy-duty industrial regulators. The unit is factory-calibrated to deliver a flow range of 2-40 SCFH (Standard Cubic Feet per Hour), making it suitable for a variety of shielding gas applications where CO2 is the primary medium.

One of the defining technical characteristics of this model is its CGA 320 inlet connection, which is the standard fitting for Carbon Dioxide cylinders in the United States. Users should note that due to the physical properties of CO2—specifically its tendency to cool rapidly during expansion—this regulator is rated for a 20% duty cycle. This specification is critical for preventing regulator freeze-up during continuous use, ensuring the longevity of the internal components and maintaining consistent flow rates during operation. The regulator is constructed with a durable brass body, ensuring resistance to corrosion and mechanical wear typical in shop environments.

This package is particularly advantageous for maintenance, repair, and operation (MRO) inventories because it comes complete with a 10-foot gas hose. This inclusion simplifies procurement and setup, allowing technicians to connect the regulator to welding machines or other equipment immediately upon unboxing. The flow tube is designed for clear visibility, allowing operators to monitor gas usage precisely. The internal mechanism is preset to a delivery pressure optimized for the flowmeter's operation, typically around 25 PSIG, removing the need for complex pressure adjustments and focusing user interaction solely on flow rate control.

In summary, the Victor 0781-2704 combines the trusted engineering of the Victor brand with a specific feature set tailored for CO2 usage. It is an ideal choice for light fabrication shops, HVAC technicians, and maintenance departments looking for a reliable, dedicated CO2 flowmeter that balances performance, durability, and cost-effectiveness.