0781-1470 - Victor SR4K-680 High Pressure Inert Gas Piston Regulator, 300-4500 PSIG

Heavy-Duty High Pressure Control

The Victor 0781-1470 SR4K-680 is a powerhouse regulator built for the most demanding high-pressure inert gas applications. Part of Victor's renowned SR4 series, this heavy-duty piston regulator is specifically designed to handle inlet pressures up to 5500 PSIG while delivering a precise output between 300 and 4500 PSIG. It is the ideal choice for professionals engaged in pressure vessel testing, dead-end testing, and other industrial processes where high-pressure delivery is non-negotiable. Its robust construction ensures it can withstand the rigors of heavy industrial use without compromising on accuracy or safety.

Robust Piston Design

Unlike conventional diaphragm regulators that can be sensitive to high-pressure shocks, the SR4K-680 utilizes a brass piston actuation system. This design is inherently more robust and better suited for high-pressure spikes and heavy-duty cycling. The machined brass body and housing cap provide a rugged exterior that withstands the wear and tear of shop environments and field sites. Inside, a cartridge-type seat assembly with a PCTFE seat ensures reliable shut-off and regulation, while the Delrin cap bushing ensures that making pressure adjustments feels smooth and controlled, not stiff or jerky. This attention to internal mechanics results in a regulator that maintains consistent pressure delivery over a long service life.

Ready for the Job

This regulator comes ready to integrate into your high-pressure systems. It features a CGA 680 inlet connection, compatible with high-pressure inert gas cylinders (such as Nitrogen, Argon, or Helium). The outlet is fitted with a 1/4" Swagelok connection and a stainless steel tube fitting, offering versatility and high-integrity sealing for your test equipment or process lines. With 2.5-inch brass gauges, you get immediate visual feedback on your pressure levels. The unit also features an external adjustable relief valve, adding an extra layer of safety to your operations. Whether you are testing pipelines, pressurizing vessels, or performing leak checks, the Victor SR4K-680 delivers the reliability and safety Victor equipment is famous for.