The CGA 580 cylinder valve is the industry-standard outlet valve used for high-pressure inert gas cylinders. Designed according to Compressed Gas Association (CGA) standards, the CGA-580 connection is assigned to non-flammable inert gases, ensuring safe regulator compatibility and preventing cross-connection.
This valve is commonly used for cylinders containing nitrogen, argon, helium, neon, krypton, and xenon. It is engineered for durability, leak-tight performance, and long-term reliability in demanding industrial environments.
Technical Specifications
Outlet Connection
- Standard: CGA-580
- Thread: 0.965-14 NGO RH internal thread
- Direction: Right-hand thread (inert gas standard)
- Compatible with all CGA-580 regulators
Inlet Connection Options
- 3/4″–14 NGT
- 1″–11½ NGT
- Custom inlet threads available upon request
Pressure Ratings
- Working pressure: up to 3000 PSI (20.7 MPa)
- 3360 PSI / 3775 PSI PRD configurations available
- Designed for high-pressure seamless steel cylinders
Materials
- Forged brass body
- Optional stainless steel stem
- PTFE or engineered polymer sealing components
CGA580 Gas Cylinder Valves
INERT GAS VALVE – CGA580, 3/4″ NGT – ARGON, HELIUM, NITROGEN
This DSW inert gas valve is made from heavy-duty forged brass and is specifically designed for use with argon, helium, or nitrogen in steel inert gas cylinders. Common applications include welding and other industrial uses. This inert gas valve has a CGA580 valve outlet with a 3/4″ NGT inlet and safety (burst disk).
gas cylinder valves
CGA580 outlet
3/4″ NGT inlet
Pressure relief device
Automated assembly and testing processes ensure exceptional quality
100% helium leak tested
Heavy-duty forged brass body for durability and high pressure
Precisely machined internal components meet the most stringent international valve performance standards
Pressure Relief Device (PRD) is a unitized plug design that provides excellent flow characteristics, ensures proper assembly and tamper resistance
Metal-to-metal seal below bonnet threads prevents pressure in the threads at top of valve body
Direct-drive stem design with optimized O-ring (GV) or double O-ring (GVHM) seal reduces friction and operates at exceptionally low torque levels
Tapped for dip tube as required
Must be installed by a qualified cylinder technician
Compressed gas cylinders and valves are dangerous. Use caution.
Applications
- Industrial Manufacturing: Welding shielding gas, nitrogen purging, helium leak detection
- Laboratories: Carrier gas systems, analytical equipment, research applications
- Food & Beverage: Nitrogen pressurization, modified atmosphere packaging
- HVAC & Testing: Pressure testing and system purging
Safety & Compliance
CGA-580 valves are part of a standardized safety system that prevents incorrect gas connections. Each CGA number corresponds to a specific gas family, minimizing cross-connection risk.
- Compliant with CGA standards
- Suitable for DOT cylinder requirements
- Manufactured under ISO quality systems
- Oxygen-clean or industrial-clean service available
Each valve undergoes dimensional inspection, leak testing, and pressure integrity verification before shipment.
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