Value Collection B300 15 300 1/2 in Threaded End Cap Class 300

Product Description

The VALUE COLLECTION B300 15 300# is a threaded malleable iron end cap in a black finish, designed to seal the terminal end of a threaded pipe run. Rated to 1500 psi, this Class 300 fitting meets ANSI/ASME B1.20.1 and ASME B16.3 standards, making it appropriate for both liquid and gas service. At 0.23 pounds, it is a compact, single-piece fitting sized at 1/2 inch. Licensed plumbers, pipefitters, and mechanical contractors typically specify this fitting wherever a threaded pipe terminus must be sealed under pressure.

This end cap is suited for residential and light commercial piping systems carrying gas, water, air, or other compatible media at elevated pressures. The 1/2-inch threaded connection makes it a common choice in gas distribution headers, compressed air manifolds, and hydronic piping assemblies. The black malleable iron construction is well matched to black iron gas line applications where matching finish and material consistency across fittings is standard practice.

Key Features

• Class 300 rating with a 1500 psi liquid and gas pressure rating
• Threaded connection conforming to ANSI/ASME B1.20.1 thread standards
• Malleable iron construction for impact resistance and thread integrity under torque
• Black finish suitable for black iron gas piping systems
• Meets ASME B16.3 dimensional standards for malleable iron threaded fittings
• Lightweight at 0.23 pounds for easy single-hand installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch threaded malleable iron piping systems conforming to ANSI/ASME B1.20.1 and ASME B16.3 standards.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code, and the International Plumbing Code. Always depressurize and isolate the piping system before installing or replacing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before makeup; do not over-torque, as malleable iron threads can be damaged by excessive force. Verify system pressure integrity with a leak test before returning the line to service.