0781-0617 - Victor SR 460MA-997 Heavy Duty Acetylene Manifold Regulator

Technical Overview of the Victor SR 460MA-997

The Victor SR 460MA-997 (SKU: 0781-0617) is a premium, heavy-duty single-stage regulator designed specifically for acetylene manifold systems and high-pressure testing applications. Part of the renowned SR 460 series, this regulator is engineered to handle the rigorous demands of industrial environments where reliability and precision are paramount. Unlike standard diaphragm regulators, the SR 460MA utilizes a piston-type actuation mechanism. This design choice significantly enhances durability, making it particularly well-suited for applications involving pressure vessels and dead-end testing where pressure spikes and heavy usage are common.

Construction and Material Specifications

Victor has constructed the SR 460MA-997 with a machined brass body and housing cap, ensuring exceptional strength and resistance to corrosion. The internal components are equally robust, featuring a cartridge-type seat assembly with a PCTFE (Polychlorotrifluoroethylene) seat. This material is selected for its chemical resistance and mechanical strength, ensuring a tight seal and long operational life even under high-pressure conditions. To facilitate ease of use, the regulator includes a Delrin cap bushing, which provides smooth, low-friction adjustment of delivery pressure. Additionally, a sintered bronze inlet filter is integrated to trap particulates, preventing damage to the seat and piston assembly.

Performance and Application

This model is calibrated for a delivery pressure range of 2 to 15 PSIG, making it ideal for low-pressure acetylene applications that require a stable flow from a high-pressure source. It is rated for a maximum inlet pressure of 3000 PSIG. The regulator is equipped with large, 2.5-inch brass gauges that provide clear and accurate readings of both cylinder (inlet) and delivery (outlet) pressures. The specific configuration of this model includes a CGA 997 inlet connection, which is the standard for acetylene manifolds, and a 1-11 1/2 F NPS outlet connection. Safety is addressed through an external adjustable relief valve, ensuring system integrity during operation.

Maintenance and Serviceability

The modular design of the SR 460 series allows for straightforward maintenance. The cartridge seat assembly can be replaced as a unit, simplifying field service and reducing downtime. The use of high-quality brass and bronze components ensures that the regulator can withstand the wear and tear of daily industrial use, providing a long-term solution for facility gas management.