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Black steel pipe nipple, quarter inch by twelve inches, welded Schedule 40

Beck C. H.

Beck C. H. 330009606 1/4" x 12" Black Pipe Nipple Sch 40

SKU CH-6A4K-HH7VD MPN 330009606

A 12-inch Schedule 40 black steel pipe nipple rated for 300 psi at 150 degrees Fahrenheit

  • TypeDrain Components
  • ColorTransparent
  • Rated for 300 psi air and gas lines
  • Withstands 150 psi steam at 360 °F
  • Welded Grade B steel for structural strength
  • Black anodized coating resists corrosion on oils
  • 1/4 inch nominal size fits standard fittings

Black Steel Pipe Nipple — 1/4" Nominal Size

This Beck 330009606 nipple connects air, gas, oil or non-potable water lines in residential and light-commercial plumbing. The 1/4 inch nominal bore suits small-diameter distribution branches and instrument taps. Welded steel construction meets Schedule 40 wall-thickness requirements for standard-pressure service.

Sustained Pressure Performance

Rated for 300 psi at 150 °F and 150 psi steam at 360 °F, the fitting holds its seal under continuous operating loads rather than only brief test spikes. Grade B steel and black anodized coating resist the thermal cycling and vibration common in compressor and hydronic loops. The 23/64 inch inside diameter maintains flow capacity over long runs.

Build Quality and Daily Use

Made in USA from black anodized steel, the nipple resists surface corrosion in damp mechanical rooms and exposed outdoor runs. Tapered NPT threads on both ends engage standard fittings without proprietary adapters. The 12 inch length provides reach between fixed components while allowing easy alignment during assembly or maintenance.

Highlights

  • Rated for 300 psi air and gas lines
  • Withstands 150 psi steam at 360 °F
  • Welded Grade B steel for structural strength
  • Black anodized coating resists corrosion on oils
  • 1/4 inch nominal size fits standard fittings

Specifications

TypeDrain Components
ColorTransparent
BrandBeck
Model330009606

Questions about this item

Will the black anodized finish on this 1/4" Sch 40 nipple withstand continuous 300 psi air or gas flow without degrading?

The steel nipple is rated for 300 psi at 150 °F and the black anodized coating is applied to the welded Grade B steel body for that service.

Which thread sealant and mating fittings do I need to connect this 23/64" ID nipple to my existing 1/4" NPT piping?

Use PTFE tape or pipe dope on the 1/4" NPT threads and join it to any standard 1/4" NPT female fitting such as couplings, elbows or valves.

Can I thread this 12" black steel nipple directly into my older galvanized 1/4" NPT fittings without leaks?

Yes, the nipple has standard 1/4" NPT threads that match legacy galvanized fittings; apply fresh sealant on both sides for a reliable joint.

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