Asc Engineered Solutions 1DX1B.NB Hex Head Pipe Bushing

Product Description

The ASC Engineered Solutions 1DX1B.NB is a hex head pipe bushing designed to reduce a 1-1/2 inch male NPT thread to a 1-1/4 inch female NPT thread. Constructed from malleable iron with a galvanized finish, this bushing provides corrosion resistance in demanding plumbing and piping applications. Rated at 150 lb, it is built to handle standard working pressures in low-pressure water, air, and gas systems. The hexagonal head allows for secure wrench engagement during installation, reducing the risk of slippage or fitting damage. Plumbers and pipefitters install this fitting as a standard threaded reducer in both new construction and retrofit piping systems.

This bushing is suited for residential and light commercial plumbing, HVAC piping, compressed air distribution, and gas distribution systems where a reduction from a 1-1/2 inch to a 1-1/4 inch threaded connection is required. The galvanized malleable iron construction makes it appropriate for above-ground and indoor installations where moderate corrosion resistance is needed. It is manufactured domestically and meets standard 150 lb class fitting requirements.

Key Features

• Hex head design allows full wrench engagement for controlled installation torque
• 1-1/2 inch MNPT inlet reduces to 1-1/4 inch FNPT outlet
• 150 lb pressure class malleable iron construction
• Galvanized finish provides corrosion resistance for standard piping environments
• Domestic manufacture to standard threaded fitting dimensions

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 150 lb class malleable iron threaded piping systems requiring a 1-1/2 inch to 1-1/4 inch NPT reduction.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC requirements for the system type. Shut off and depressurize the piping system completely before making or breaking any threaded connections. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten; use the hex head for controlled wrench engagement only.

Technical Specifications

• Nominal Size: 1-1/2 x 1-1/4 inches
• End Style: MNPT x FNPT
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Head Style: Hex
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 1DX1B.NB