The Sherwood CGA-590 gas cylinder valve is a high-pressure, industrial-grade brass shut-off valve designed for use on compressed gas cylinders with a CGA-590 outlet connection. These valves are commonly used on cylinders storing specialty and industrial gases (e.g., sulfur hexafluoride, and other non-oxidizing gases) that require the CGA-590 interface.
Key Features
Valve Standard: CGA-590 outlet — a unique configuration standardized for specific gas services.
Inlet Thread: 3/4″ NGT (National Gas Taper) for secure threaded attachment to the gas cylinder neck.
Body Material: Durable forged brass construction for corrosion resistance and long service life.
Pressure Rating: Typically suitable for industrial cylinder service pressures (often around 3000–4000 PSI working range, depending on PRD configuration).
Pressure Relief Device (PRD): Incorporates a safety burst or PRD element (CG1 PRD style) to help prevent overpressure events, improving cylinder safety.
Internal Sealing: Precisely machined internal components with robust sealing (o-rings and metal-to-metal seats) for leak-resistant performance.
Construction Quality: Manufactured with automated assembly and 100% leak testing for consistent quality and reliability.
Typical Uses
Replacement or service valve for industrial and specialty gas cylinders requiring a CGA-590 outlet connection.
Suitable for connections on compressed gas cylinders (e.g., sulfur hexafluoride or other inert gases, depending on gas compatibility and service specs).
Used in industrial welding, laboratory, semiconductor, and specialty gas applications where precise shut-off and safety relief are required