0781-1463 - Victor SR4K-347 High Pressure Air Piston Regulator, 300-4500 PSIG

Victor SR4K-347 High Pressure Air Regulator: Precision and Power

The Victor SR4K-347 (0781-1463) is a premium heavy-duty high-pressure piston regulator designed specifically for industrial air applications requiring substantial delivery pressures. Engineered by Victor, a leader in gas control equipment, this regulator is part of the renowned SR 4 series, known for its rugged construction and reliability in the field. Unlike standard regulators that utilize a diaphragm, the SR4K employs a brass piston actuation mechanism. This design choice is critical for high-pressure service, as pistons are significantly more durable and resistant to the wear and tear caused by frequent pressure cycling and high-velocity gas flow.

Constructed from a machined brass body and housing cap, the SR4K-347 is built to withstand the rigors of heavy industrial use. The internal components are equally robust, featuring a cartridge-type seat assembly with a PCTFE seat. PCTFE (Polychlorotrifluoroethylene) is chosen for its exceptional hardness and chemical resistance, ensuring a tight seal even under the extreme pressures this unit manages. The regulator is rated for a maximum inlet pressure of 5500 PSIG and offers a versatile delivery range of 300 to 4500 PSIG. This makes it an ideal choice for demanding tasks such as pressure vessel testing, dead-end testing, and charging high-pressure systems.

Ease of operation is enhanced by the inclusion of a Delrin cap bushing, which ensures smooth adjustments of the delivery pressure. The unit comes equipped with large, easy-to-read 2.5-inch brass gauges that provide clear visual confirmation of both cylinder and delivery pressures. Safety and longevity are further prioritized with a bronze sintered inlet filter that prevents debris from entering the regulator and damaging the seat. The outlet is fitted with a 1/4-inch Swagelok stainless tube fitting, providing a secure and leak-free connection for your downstream equipment. Whether you are in a testing lab or on a heavy manufacturing floor, the Victor SR4K-347 delivers the consistent high-pressure performance you need.