Beck C. H. 330046400 3" x 5-1/2" Black Pipe Nipple Sch 40 trap

3-Inch Schedule 40 Black Pipe Nipple

The Beck 330046400 is a 3-inch nominal size pipe nipple manufactured from Grade B welded steel with a black anodized finish. It is designed for conveying air, gases, non-potable water and oils in industrial piping systems. The fitting offers a maximum operating pressure of 300 psi at 150 degrees Fahrenheit and a maximum steam pressure of 150 psi at 360 degrees Fahrenheit. It is produced in the USA.

Replaces Worn or Damaged Threaded Pipe Sections

This nipple serves as a direct replacement for corroded or leaking black steel pipe segments in existing Schedule 40 networks. The upgrade is worthwhile when the current fitting shows thread degradation, internal scaling or external corrosion that compromises the 300 psi pressure rating. It restores the original flow capacity and pressure integrity without requiring a change to the pipe schedule or material grade.

Threaded Installation With Standard Pipe Tools

Installation uses standard 3-inch pipe threads and requires a heavy-duty pipe wrench and appropriate thread sealant rated for the system media. The most common issue is cross-threading or over-tightening, which can crack the welded steel body or strip the threads. Ensure the mating fittings are clean, aligned and compatible with Schedule 40 dimensions to prevent leaks at the joint.