1/2 inch Carbon Steel 400G Gas Press Coupling with Stop Press x Press

1/2 Inch Carbon Steel Gas Press Coupling with Stop – Press x Press (400G Rated)

The 1/2 inch Carbon Steel Gas Press Coupling with Stop is a press-to-connect fitting designed for joining carbon steel piping in natural gas and fuel gas distribution systems. Featuring integrated press ends on both sides, this coupling allows for fast, flame-free installation while providing a built-in internal stop to control pipe insertion depth.

Material Specifications and Standards

This fitting is constructed from carbon steel with corrosion-resistant coating suitable for gas service. Engineered for use in conjunction with standard Schedule 5–40 carbon steel pipe, it is manufactured to meet the requirements of ANSI LC-4/CSA 6.32 for fuel gas fittings and conforms to applicable performance and dimensional standards.

• ✅ Material: Carbon Steel (Zinc-nickel or E-coated for corrosion resistance)
• ✅ Nominal Size: 1/2 inch
• ✅ Connection Type: Press x Press (stop feature for centered engagement)
• ✅ Application Rating: 400G (Fuel Gas, per ANSI LC-4)
• ✅ Seal Element: HNBR (Hydrogenated Nitrile Butadiene Rubber) for gas applications

Approved Uses

Intended for use in residential, commercial, and industrial fuel gas piping systems, including natural gas and propane installations. Suitable for new construction and retrofit applications requiring disassembly-free mechanical connections. Typically installed in heating systems, generator supply lines, and appliance branches.

Installation Requirements

Requires compatible press tools equipped with standard-size jaws (e.g., M-profile). Pipe ends must be cut square, deburred, marked for insertion depth, and verified for proper engagement prior to pressing. No flame, solder, or threading required.

• ✅ Tool Compatibility: Press tools with manufacturer-approved jaws for carbon steel fittings
• ✅ Seal Inspection: Visual inspection of witness marks ensures correct installation
• ✅ Testing: System testing should follow applicable code and manufacturer guidelines

Performance Characteristics

• ✅ Pressure Rating: Up to 125 psi for gas service (per ANSI LC-4)
• ✅ Temperature Range: -40°F to 180°F (dependent on seal and application)
• ✅ Corrosion Resistance: Internal/external coatings protect against environmental degradation

The 1/2 inch Carbon Steel 400G Gas Press Coupling with Stop offers a code-compliant, mechanically robust solution for joining carbon steel piping in fuel gas systems. Its integrated stop feature, fast press installation, and corrosion-resistant design make it a reliable choice for gas distribution networks requiring durability, efficiency, and service accessibility.