Asc 8700159455 Black Iron Square Head Pipe Plug 1-1/2 in

Product Description

The ASC ENGINEERED SOLUTIONS 8700159455 is a 1-1/2 inch malleable black iron square head pipe plug designed to seal threaded pipe openings in piping systems. Its hollow core construction follows a regular plug profile, providing reliable closure in low- and medium-pressure applications. The square head design allows wrench engagement for secure installation and removal. Plumbers, pipefitters, and mechanical contractors install this fitting during system assembly, maintenance, and pressure testing. It meets Federal Specification WW-P-471-B, ANSI B-16.14 for dimensions, and ANSI B-2.1 for pipe threads, confirming dimensional and thread-form compliance with industry standards.

This pipe plug is suited for residential and commercial plumbing, steam, gas, and general industrial piping applications where a threaded pipe end must be capped or blanked off. It is typically installed in ferrous piping systems using NPT tapered pipe threads. The malleable iron construction offers impact resistance and workability compared to cast iron, making it appropriate for systems that may experience vibration or thermal cycling.

Key Features

• 1-1/2 inch NPT threaded square head plug for standard pipe fittings
• Malleable iron construction provides strength and impact resistance
• Hollow core regular plug design for reliable pipe end sealing
• Compliant with ANSI B-16.14 dimensional standards and ANSI B-2.1 pipe thread standards
• Meets Federal Specification WW-P-471-B for ferrous plugs, bushings, and locknuts
• Square head allows firm wrench grip during installation and removal

Compatibility

Designed as an OEM-style replacement fitting for 1-1/2 inch NPT threaded ferrous piping systems in plumbing, steam, and general industrial applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and ASME or IFGC standards. Shut off and depressurize the piping system fully before installing or removing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads prior to installation to ensure a leak-free joint. Do not overtighten; use a properly sized pipe wrench to achieve a snug, code-compliant fit.

Technical Specifications

• Material: Malleable Iron
• Finish: Black
• Size: 1-1/2 inches
• Head Type: Square Head
• Core Design: Hollow Core (Regular Plug)
• Thread Standard: ANSI B-2.1 NPT
• Dimensional Standard: ANSI B-16.14
• Federal Specification: WW-P-471-B
• Weight: 0.53 pounds
• Sold As: Each

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 8700159455