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Galvanized steel pipe nipple with threaded ends

Beck C. H.

Beck C. H. 331046003 3 in MNPT x 4-1/2 in TBE Galvanized Steel Pipe Nipple Sch 40 bathware

SKU CH-SE44-99XMB

Galvanised steel pipe nipple with 3 in MNPT threads for air, gas, oil and non-potable water up to 150 psi

  • ColorTransparent
  • TypePipes, Valves & Fittings
  • Galvanized coating resists corrosion on air, gas, oil and non-potable water lines
  • Schedule 40 wall handles 150 psi at 150 °F for demanding installations
  • Welded Grade B steel construction delivers consistent strength throughout the nipple
  • 3 inch NPT threads mate with standard fittings for quick assembly
  • Made in USA manufacturing ensures reliable material traceability

Galvanised steel pipe nipple for non-potable fluids

This 3-inch nominal pipe nipple is manufactured from Grade B steel with a galvanised finish and welded construction. It is intended for use with air, gases, non-potable water and oils in industrial or commercial piping systems. The component carries a Schedule 40 wall rating and is produced in the USA. Builders requiring a certified potable-water fitting or a different nominal diameter should select an alternative product.

Pressure rating and thermal limits for standard

The nipple withstands a maximum operating pressure of 150 psi at 150 degrees Fahrenheit. No maximum steam pressure or minimum operating temperature is specified by the manufacturer. Galvanised coating provides corrosion resistance for the listed fluid types under normal ambient conditions. Installations exceeding the stated pressure or temperature envelope are not supported by the supplied data.

Threaded ends integrate with 3-inch NPT piping

Both ends feature male NPT threads sized for 3-inch nominal pipe, allowing direct connection to compatible fittings, valves or equipment. The outside diameter measures 3-1/2 inches and the inside diameter is 3-1/16 inches. No gaskets, flanges or specialised tools are included; the installer must provide appropriate thread sealant and mating components. Systems requiring flanged joints or metric threads cannot use this nipple without adapters.

Highlights

  • Galvanized coating resists corrosion on air, gas, oil and non-potable water lines
  • Schedule 40 wall handles 150 psi at 150 °F for demanding installations
  • Welded Grade B steel construction delivers consistent strength throughout the nipple
  • 3 inch NPT threads mate with standard fittings for quick assembly
  • Made in USA manufacturing ensures reliable material traceability

Specifications

BrandBECK
ColorTransparent
TypePipes, Valves & Fittings

Questions about this item

How do I install this 3 in MNPT nipple without stripping the threads?

Wrap PTFE tape clockwise on the male NPT threads, hand-tighten, then turn one to two full turns with a pipe wrench on the hex flats; over-tightening cracks the galvanized coating and causes leaks.

What maintenance does the galvanized coating need over time?

Inspect annually for white rust or pitting; if the zinc layer is breached, replace the nipple because the underlying Grade B steel will corrode quickly in air, gas or non-potable water service.

At what pressure does this Sch 40 nipple reach its limit during sustained use?

The maximum operating pressure is 150 psi at 150 °F; continuous operation at or above this rating will deform the welded seam and cause premature failure.

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