2 inch x 2 inch Carbon Steel 403G Gas Press Reducing Adapter Press x Female

2 Inch x 2 Inch Carbon Steel 403G Gas Press Reducing Adapter – Press x Female Thread for Fuel Gas Distribution

The 2 inch x 2 inch Carbon Steel 403G Gas Press Reducing Adapter provides a mechanical transition between press-joined carbon steel piping and female-threaded components in fuel gas systems. Designed for code-compliant natural gas and propane distribution, it supports a sealed connection between dissimilar joint types without field welding or threading. Suitable for new construction and retrofit applications across residential, commercial, and industrial projects.

Construction and System Compatibility

This fitting is fabricated from carbon steel with a zinc-plated exterior for corrosion resistance in dry gas environments. The press connection includes a factory-installed yellow HNBR or EPDM sealing element rated for gas service. The FNPT end is machined to ANSI/ASME B1.20.1 standards, making it suitable for use with valves, regulators, or manifold assemblies requiring a female threaded interface.

• ✅ Body Material: Carbon steel with external zinc coating for corrosion protection
• ✅ Sealing Element: Gas-rated HNBR or EPDM, pre-installed (compliant with ANSI LC-4 and CSA 6.32)
• ✅ Connection Ends: Press x FNPT (female threaded), supports dissimilar material integration
• ✅ Visual Leak Detection: Unpressed fittings can be visually identified during pressure testing

Technical Specifications

• Connection Size: 2 inch press x 2 inch FNPT
• Working Pressure: Up to 125 psi (fuel gas)
• Temperature Range: -40°F to 180°F (depending on gasket material)
• Compliance: ANSI LC-4, CSA 6.32, NFPA 54 (National Fuel Gas Code)

Installation Practices

Pipe ends must be cut square, deburred, and marked to the specified insertion depth. Press connections must be made using approved tools and calibrated jaws (TH or V profiles). Apply gas-rated thread sealant to the female thread per component manufacturer recommendations. Pressure testing using air or inert gas must be performed in accordance with local codes prior to system activation.

Typical Applications

This adapter is used in gas piping systems requiring transition from press to female NPT. Applications include appliance stub-outs, rooftop equipment feeds, meter risers, and manifold terminations. Its configuration is especially useful where threaded valve bodies or system components are required in a press-based system layout.

Material Insight

Carbon steel press fittings are widely used in gas infrastructure due to their mechanical strength, thermal stability, and compatibility with modern press systems. The zinc-plated finish helps protect against oxidation in non-condensing environments.

The 2 Inch x 2 Inch Carbon Steel 403G Gas Press Reducing Adapter is a dependable solution for fuel gas projects that require integration of press connections with female threaded components. It supports safe installation, system versatility, and code-compliant performance.