Value Collection -12148-3 Square Plug 0.5 Inch Npt Class 3000

Product Description

The VALUE COLLECTION -12148-3 is a 1/2 inch NPT square plug designed to seal threaded pipe openings in pressurized fluid and gas systems. Forged from carbon steel with a black finish, this fitting carries a Class 3000 pressure rating at 3000 psi, making it suitable for demanding industrial and mechanical piping applications. The square head design allows for secure tightening with a standard wrench. Each package contains 5 plugs. Plumbers, pipefitters, and mechanical contractors typically install this type of fitting when capping unused branch outlets or closing off threaded ports during system service or reconfiguration.

This square plug is used in commercial and industrial piping systems where NPT-threaded connections are standard. Common applications include capping off pipe tees, manifolds, and valve bodies in water, steam, oil, and gas lines. The Class 3000 rating suits high-pressure environments where lower-rated fittings would be inadequate. This fitting is sold in a 5-piece package, making it practical for jobs that require multiple plugged ports or for maintaining shop stock of common sizes.

Key Features

• 1/2 inch NPT thread for compatibility with standard tapered pipe threads
• Class 3000 rated at 3000 psi for high-pressure service
• Forged carbon steel construction for strength and durability
• Black finish for corrosion resistance in typical indoor piping environments
• Square head design accepts standard wrenches for installation and removal
• Sold in a 5-piece package to cover multiple outlets per job

Compatibility

Designed as an OEM-style replacement or service fitting for 1/2 inch NPT-threaded pipe systems requiring Class 3000 square plugs in forged carbon steel.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Depressurize and drain the system completely before removing or installing any threaded fittings. Apply appropriate thread sealant or PTFE tape to the NPT threads before installation. Do not overtighten, as forged fittings can crack cast or softer threaded components if excessive torque is applied without a torque specification from the system engineer.