0781-1445 - Victor SR4J-540 High Pressure Oxygen Piston Regulator, 3000 PSIG Delivery

Victor SR 4J-540 Oxygen Regulator: Power and Precision

When your work demands high-pressure oxygen delivery, the Victor SR 4J-540 (0781-1445) High Pressure Piston Regulator is the tool you need in your arsenal. Designed for heavy-duty applications, this regulator moves beyond the capabilities of standard diaphragm models by utilizing a rugged brass piston actuation system. This makes it exceptionally suited for tasks that require delivery pressures up to 3000 PSIG, such as pressure vessel testing and dead-end testing. If you are looking for a regulator that won't back down under pressure, the SR 4J-540 is built to perform.

Durability is at the core of the SR 4J-540's design. The body and housing cap are machined from solid brass, providing the structural integrity needed to handle a maximum inlet pressure of 3000 PSIG. Inside, a cartridge-type seat assembly featuring a PCTFE seat ensures a tight, reliable seal every time. Adjusting the pressure is smooth and effortless thanks to the Delrin cap bushing, which reduces friction and allows for fine-tuning of your output pressure anywhere between 200 and 3000 PSIG. This level of control is essential when conducting critical tests where accuracy is paramount.

The regulator comes ready for action with a CGA 540 inlet connection, compatible with standard high-pressure oxygen cylinders. On the outlet side, a 1/4-inch Swagelok fitting with a stainless tube fitting provides a professional-grade connection point for your testing apparatus. To protect your investment, Victor has included a sintered bronze inlet filter that traps contaminants before they can damage the internal mechanisms. This attention to detail extends the life of the regulator and ensures consistent performance over time.

At Welders Supply, we understand that specialized jobs require specialized equipment. The Victor SR 4J-540 is not your average regulator; it is a high-performance instrument for professionals who deal with extreme pressures. With its 2.5-inch brass gauges and heavy-duty construction, it offers the visibility and reliability you need to work safely and efficiently. Upgrade your gas equipment setup with the Victor SR 4J-540 and experience the difference that a true high-pressure piston regulator can make in your testing and industrial applications.