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Three-inch by eight-inch black steel pipe nipple with threaded ends

Legend Valve

Legend Valve 355-212E 3" x 8" Schedule 40 Black Nipple equipment

SKU CH-6WFR-6802P

Schedule 40 black nipple connects 3-inch pipe runs in industrial plumbing systems

  • Schedule 40 rating delivers standard pressure performance
  • 3-inch diameter fits compatible piping systems
  • 8-inch length suits typical connection spacing
  • Black steel construction resists corrosion in service
  • Prop 65 notice discloses regulated chemical content

Legend Valve 355-212E Schedule 40 Nipple

This black steel nipple measures 3 inches by 8 inches and conforms to Schedule 40 wall thickness. It is manufactured by Legend Valve for industrial plumbing installations. The component carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Upgrading from thinner-wall or shorter nipples

Replaces fittings with lighter wall schedules or shorter lengths when system pressure demands Schedule 40 durability. The jump is worth it when the existing nipple cannot handle the required working pressure or when corrosion resistance of black steel suits the application. It does not suit systems requiring galvanised finish or different nominal diameters.

Threaded installation with standard tools

Installs by threading into matching Schedule 40 fittings using pipe wrenches and appropriate thread sealant. Common issues include cross-threading during assembly and leaks from insufficient sealant or damaged threads. Over-tightening can crack the fitting or strip the threads. Ensure the mating components share the same schedule and thread standard.

Highlights

  • Schedule 40 rating delivers standard pressure performance
  • 3-inch diameter fits compatible piping systems
  • 8-inch length suits typical connection spacing
  • Black steel construction resists corrosion in service
  • Prop 65 notice discloses regulated chemical content

Specifications

BrandLEGEND VALVE

Questions about this item

What thread size does the 3" Schedule 40 black nipple require for a secure fit?

The nipple uses a 3-inch nominal pipe thread; matching Schedule 40 fittings of the same diameter will thread on correctly.

Which sealing method is recommended when installing the 355-212E nipple to avoid leaks?

Apply PTFE tape or pipe thread sealant to the male threads, then tighten until the joint is snug — over-tightening can crack the fitting.

How often should the black steel nipple be inspected for corrosion in a standard water system?

Inspect annually; replace the nipple if visible rust, pitting, or seepage appears at the threads.

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