1-1/4 inch Carbon Steel Gas Press Union 4733 G Press x Press

1-1/4" Carbon Steel Gas Press Union – Engineered for Secure, Code-Compliant Gas Transitions

The 1-1/4" Carbon Steel Gas Press Union from Apollo PowerPress is designed for use in natural gas and LP gas systems requiring a mechanically pressed connection. Manufactured from ASTM A420 carbon steel, this fitting provides a robust, non-threaded joining solution compatible with standard press tools and jaws.

Equipped with a yellow HNBR sealing element, the union is rated for fuel gas applications and complies with the performance criteria established in ASME B31 codes and CSA standards. Its union design facilitates maintenance access or future disassembly without disturbing adjacent piping.

Advantages for Gas Installations

• ✅ High-Strength Carbon Steel Body – Fabricated to meet ASTM A420 standards for pressure-bearing capability and dimensional stability
• ✅ Press Connection System – Compatible with standard press-fit tooling (e.g., RIDGID® or Milwaukee® M18 systems)
• ✅ HNBR Sealing Element – Yellow O-ring provides fuel gas compatibility and temperature resistance from -40°F to 180°F
• ✅ Removable Union Nut Design – Allows inline disassembly without pipe cutting, ideal for service access points
• ✅ Leak-Before-Press Feature – Unpressed connections are easily detectable during system testing

Technical Specifications

• Size: 1-1/4" Press x Press Union
• Material: Carbon Steel (ASTM A420)
• Sealing Element: HNBR (pre-installed), color-coded yellow for gas
• Max Pressure: 125 psi for fuel gas per CSA LC4 / ANSI Z21.80
• Temperature Range: -40°F to 180°F
• Certifications: CSA, IAPMO, and NFPA 54 compliant

Application Areas

Commonly used in fuel gas distribution piping for commercial and residential structures, this union is suited for above-ground gas systems using Schedule 5 to Schedule 40 carbon steel pipe. It is especially beneficial for installations that may require future disconnection, such as appliance tie-ins, manifold transitions, or utility room connections.

Installation Guidelines

Proper installation requires calibrated press tools and compatible jaws per the manufacturer’s guidelines. Clean pipe ends thoroughly before pressing. HNBR sealing elements must not be substituted or altered, and systems must undergo pressure testing according to NFPA or AHJ requirements.

The Apollo PowerPress 1-1/4" Carbon Steel Gas Press Union offers a safe, fast, and efficient method for gas line construction and service access. Built to handle demanding environments while simplifying installation, it supports code-compliant performance across a range of jobsite scenarios.