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The CARRHILL B9112 is a 1.5-inch medium-density polyethylene (MDPE) butt fusion 90-degree elbow designed for underground gas distribution piping systems. This yellow-coded fitting signals its natural gas service designation, conforming to standard color identification practices used across the gas utility and plumbing trades. The butt fusion joining method creates a monolithic, leak-resistant joint with no mechanical fittings to loosen or corrode. Licensed plumbers, gas fitters, and utility pipeline contractors install this fitting using a compatible butt fusion machine and appropriate pipe clamps for a controlled, heat-fused connection.
The B9112 is suited for residential and light commercial underground gas service lines where MDPE piping is specified. Yellow MDPE fittings are commonly used in new construction gas laterals, service upgrades, and distribution main taps. The butt fusion process is the preferred joining method for gas-grade polyethylene pipe in applications where long-term joint integrity is required. This fitting is intended for use with 1.5-inch MDPE pipe stock meeting applicable ASTM standards for gas service.
Designed as an OEM-style fitting for use with 1.5-inch MDPE gas distribution piping systems installed per applicable gas utility and plumbing code requirements.
Installation must be performed by a qualified gas fitter or licensed plumber trained and certified in polyethylene butt fusion procedures. Shut off all gas supply and verify zero pressure in the line before beginning work. A calibrated butt fusion machine sized for 1.5-inch pipe is required to achieve proper melt bead geometry and joint strength. Work must comply with applicable codes including IFGC, DOT 192, and local gas utility specifications governing polyethylene gas piping.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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