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Black steel pipe nipple 3 inch by 5-1/2 inch Sch 40

Beck C. H.

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

SKU CH-XVWB-W83FX MPN 330046400

A 3-inch Schedule 40 black steel pipe nipple rated for 300 psi at 150°F and 150 psi steam at 360°F

  • TypeDrain Components
  • ColorTransparent
  • Black steel construction resists corrosion in harsh environments
  • Schedule 40 wall handles 300 psi working pressure at 150°F
  • Welded Grade B steel meets 150 psi steam rating at 360°F
  • 3-inch nominal size fits standard black pipe systems
  • Made in USA manufacturing ensures consistent material quality

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.

Highlights

  • Black steel construction resists corrosion in harsh environments
  • Schedule 40 wall handles 300 psi working pressure at 150°F
  • Welded Grade B steel meets 150 psi steam rating at 360°F
  • 3-inch nominal size fits standard black pipe systems
  • Made in USA manufacturing ensures consistent material quality

Specifications

TypeDrain Components
ColorTransparent
BrandBeck
Model330046400

Questions about this item

What size pipe threads does the 3-inch Schedule 40 nipple accept?

The nipple has a nominal pipe size of 3 inches and an inside diameter of 3 1/16 inches for standard NPT threading.

How should the welded steel nipple be sealed during installation?

Apply PTFE tape or pipe dope to the male threads and tighten to the recommended torque; the welded construction eliminates internal leak paths.

When should this black anodized steel nipple be replaced?

Replace if the black anodized coating shows corrosion, threads are damaged, or the system exceeds 300 psi at 150°F or 150 psi steam at 360°F.

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