Asc Engineered Solutions 1B.BP Square Head Pipe Plug 1-1/4 in

Product Description

The ASC Engineered Solutions 1B.BP is a cored regular square head pipe plug designed to close off threaded pipe ends in low- to medium-pressure piping systems. Manufactured from cast iron with a black finish, this plug features a 1-1/4 inch nominal male NPT (MNPT) end for direct thread engagement into a female-threaded fitting or pipe. The 125 lb pressure class rating makes it suitable for standard service applications in gas, water, and steam distribution piping. Plumbers, pipefitters, and mechanical contractors install this type of plug during system assembly, testing, and maintenance.

This square head plug is used in residential and commercial piping installations where a threaded end cap is required. The cored design accommodates a wrench or bar through the head for installation and removal torque. Typical applications include capping branch tees, plugging unused outlets on manifolds, and isolating sections of piping during pressure testing. The black cast iron construction suits above-ground and concealed dry indoor installations.

Key Features

• 1-1/4 inch nominal MNPT thread for direct engagement into standard female NPT fittings
• 125 lb pressure class cast iron construction for standard service piping
• Square head cored design allows bar or wrench insertion for installation and removal
• Black finish cast iron material provides durability in dry piping applications
• Domestic manufacture

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/4 inch female NPT threaded pipe outlets in 125 lb class cast iron piping systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters in accordance with applicable plumbing and mechanical codes such as the IPC and IFGC. Shut off and depressurize the piping system completely before installing or removing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads before engagement. Do not over-drive the plug; use a bar through the cored head opening and tighten to a snug, leak-free fit without cracking the casting.

Technical Specifications

• Nominal Size: 1-1/4 inches
• End Style: MNPT (Male National Pipe Thread)
• Pressure Class: 125 lb
• Material: Cast Iron
• Finish: Black
• Head Style: Square Head Cored
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 1B.BP