0781-1410 - Victor SR4F-680 High Pressure Inert Gas Piston Regulator | 50-750 PSIG

Victor SR4F-680 High Pressure Inert Gas Regulator

The Victor 0781-1410 SR4F-680 is a premium heavy-duty high-pressure piston regulator designed specifically for inert gas applications requiring substantial delivery pressures. Engineered by Victor, a leader in gas control equipment, this regulator is part of the SR 4 Series, renowned for its robust construction and reliability in demanding industrial environments. The unit is constructed with a machined brass body and housing cap, ensuring long-term durability and resistance to the rigors of high-pressure service.

At the core of the SR4F-680 is a brass piston type actuation mechanism. Unlike diaphragm regulators, piston regulators are preferred for high-pressure applications due to their ruggedness and ability to withstand pressure spikes. This model features a cartridge-type seat assembly with a PCTFE seat, which provides excellent chemical resistance and mechanical strength, ensuring a tight seal and consistent performance even under maximum load. The regulator is rated for a maximum inlet pressure of 5500 PSIG via a CGA 680 connection, making it suitable for high-pressure cylinders and manifold systems.

Precision control is achieved through a Delrin cap bushing, which facilitates smooth adjustments across the delivery range of 50 to 750 PSIG. This specific pressure range makes the SR4F-680 ideally suited for specialized applications such as pressure vessel testing and dead-end testing where maintaining a specific high pressure is critical. The outlet is equipped with a 1/4" Swagelok connection including a 1/4" stainless steel tube fitting, providing a secure and leak-free interface for downstream equipment. Safety is paramount in high-pressure environments, and this regulator includes an external adjustable relief valve to protect against over-pressurization.

Additional features include a sintered bronze inlet filter that prevents particulate matter from entering the regulator and damaging the seat or piston. The unit comes equipped with large, easy-to-read 2.5-inch brass gauges that display both cylinder contents and delivery pressure. With its heavy-duty design and precise engineering, the Victor SR4F-680 is the professional's choice for high-pressure inert gas regulation.