Asc Engineered Solutions 1D.BU 1-1/2 in Pipe Union 150 Lb

Product Description

The ASC Engineered Solutions 1D.BU is a 1-1/2 inch threaded pipe union rated for 150 lb service. It features a brass-to-iron seat design with a malleable iron body finished in black. This union is used to join and disconnect sections of threaded pipe without rotating the pipe itself, making it a standard fitting in plumbing, HVAC hydronic piping, and mechanical systems. The brass seat provides corrosion resistance at the sealing surface, while the malleable iron body delivers the structural strength required for pressure systems. Licensed plumbers and pipefitters install this fitting during new construction and retrofit work.

This union is suited for residential and light commercial piping systems where 150 lb-rated threaded fittings are specified. Typical applications include hot and cold water distribution, heating system piping, and general mechanical room work. The 1-1/2 inch size fits standard Schedule 40 NPT-threaded pipe of the same nominal diameter. The domestic manufacture designation indicates U.S. production, which is relevant for projects with Buy American requirements.

Key Features

• 1-1/2 inch nominal pipe size with NPT-threaded connections
• Brass-to-iron seat provides a reliable, corrosion-resistant sealing surface
• Malleable iron body rated at 150 lb for pressure service
• Black finish standard for malleable iron pipe fittings
• Allows pipe disconnection without rotating adjacent pipe sections
• Domestically manufactured

Compatibility

Designed as a standard 150 lb malleable iron threaded pipe union for use with 1-1/2 inch NPT-threaded Schedule 40 pipe in plumbing and mechanical piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing codes and ASME B16.3 standards for malleable iron fittings. Shut off and depressurize the system and drain standing water before removing or installing this union. Apply thread sealant or PTFE tape to NPT threads before assembly, and tighten with pipe wrenches to achieve a leak-free joint without over-stressing the fitting. Do not exceed the 150 lb pressure rating for the service conditions of the installation.

Technical Specifications

• Pipe Size: 1-1/2 inches
• Pressure Rating: 150 lb
• Seat Material: Brass x Iron
• Body Material: Malleable Iron
• Finish: Black
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 1D.BU