Value Collection 12147 Black Hex Plug 1/8 Inch Npt Class 3000

Product Description

The VALUE COLLECTION 12147 is a forged carbon steel hex plug rated for Class 3000 service, designed to seal and cap threaded pipe ends in demanding fluid and gas piping systems. The black finish provides basic corrosion resistance for indoor and light industrial applications. At a 1/8 inch NPT size, this plug is suited for small-diameter lines where a reliable, pressure-rated closure is needed. With a 3000 psi pressure rating, it handles high-pressure pipework well within typical commercial and industrial service conditions. Licensed plumbers, pipefitters, and HVAC technicians routinely use hex plugs of this class when capping test ports, gauge taps, and branch lines.

This hex plug is used across residential and commercial plumbing, hydronic heating systems, compressed air lines, and natural gas piping where a 1/8 inch NPT male-threaded closure is required. The hex head allows torque to be applied with a standard wrench, making installation straightforward in tight spaces. It is commonly used to cap unused tee outlets, seal pressure ports during system commissioning, and close off branch connections that are not yet in service. Sold in a package quantity of 5, making it practical to keep spares on the truck or in the shop.

Key Features

• Forged carbon steel construction for strength in high-pressure service
• Class 3000 rated at 3000 psi for liquid and gas pressure applications
• 1/8 inch NPT male thread for standard pipe system compatibility
• Black finish provides a basic protective coating over bare steel
• Hex head design accepts standard wrench or socket for controlled tightening
• Sold in a 5-piece package for job-site and van-stock convenience

Compatibility

Designed as an OEM-style threaded fitting for use in any piping system that accepts 1/8 inch NPT male connections and requires a Class 3000 pressure-rated plug.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and ASME B16.11 fitting standards. Depressurize and isolate the line completely before removing or installing any threaded fitting. Apply an approved pipe thread sealant or PTFE tape to the male threads before installation. Do not overtighten; use a calibrated torque wrench or follow industry-standard turns-past-hand-tight guidance for the pipe size and material.