0781-5201 - Victor ELC4 Series CO2 Liquid Cylinder Regulator, Rear Entry

Victor EDGE ELC4-125-320R CO2 Liquid Cylinder Regulator

The Victor 0781-5201 EDGE ELC4-125-320R is a premium heavy-duty regulator designed specifically for the unique demands of liquid cylinder gas distribution. Engineered by Victor, a leader in gas equipment for nearly a century, this regulator combines advanced safety features with precision performance to handle Carbon Dioxide (CO2) vapor withdrawal from liquid vessels. The ELC4 Series brings the innovative architecture of the EDGE family to liquid cylinder applications, offering a compact, durable, and highly reliable solution for industrial gas control.

At the core of this regulator is a stainless steel diaphragm, which provides superior sensitivity and longevity compared to standard elastomeric diaphragms. This construction ensures consistent delivery pressure ranging from 5 to 125 PSIG, even as the cylinder pressure fluctuates. The unit features a rear entry design, which is critical for liquid cylinder setups, allowing the regulator to mount cleanly while keeping the gauges and adjustment knob in an ergonomic position for the operator. The inlet connection is a standard CGA 320, and the outlet is a CGA 032 (5/8"-18 UNF), making it compatible with standard industrial hoses and fittings.

Safety is paramount in the design of the EDGE series. The regulator is equipped with Victor's patented SLAM (Shock Limitation and Absorption Mechanism) knob. This multi-stage crumple zone is designed to absorb impact energy in the event that a cylinder falls over, protecting the vital internal components of the regulator and the cylinder valve itself. Furthermore, the housing cap is constructed from a high-strength zinc-aluminum alloy, which boasts almost twice the yield strength of forged brass, providing exceptional resistance to the rough handling often encountered in industrial environments.

The Victor 0781-5201 also features a large, easy-to-read 2.5-inch delivery gauge with high-contrast graphics, allowing operators to verify pressure settings at a glance. With a flow coefficient (Cv) of 0.488, it delivers uniform flow performance suitable for a wide variety of gas distribution and pipeline systems. Fully compliant with CGA E-4, UL 252, and ASTM G-175 standards, this regulator represents the gold standard in liquid cylinder gas control.