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Black steel pipe nipple with threaded ends

Legend Valve

Legend Valve 355-209E 3" x 5-1/2" Schedule 40 Black Nipple

SKU CH-QZ9Z-T84NH

Schedule 40 black nipple connects 3-inch pipe runs over a 5-1/2-inch length

  • Schedule 40 rating handles high-pressure systems
  • 3-inch diameter fits standard industrial piping
  • 5-1/2-inch length suits tight installations
  • Black steel construction resists corrosion damage
  • California Prop 65 warning informs safe handling

Legend Valve 355-209E Black Nipple

This Schedule 40 black nipple measures 3 inches by 5-1/2 inches and is built for industrial plumbing systems. It provides a reliable threaded connection for joining pipes or fittings in fluid-handling applications. The component is supplied new and ready for assembly in professional environments. Installers working with standard iron pipe threads will find it compatible with existing infrastructure.

Schedule 40 pressure rating under sustained load

The Schedule 40 wall thickness supports continuous operating pressures typical for black steel piping in industrial service. Thread engagement remains stable during prolonged thermal cycling and vibration without deformation. Internal flow characteristics stay consistent over extended duty cycles because the bore diameter does not change under normal service conditions. The material resists fatigue when installed within its rated pressure envelope.

Installation considerations and common issues

Tapered NPT threads require proper sealant or tape to prevent leaks at the joint faces. Over-tightening can crack the fitting or strip threads, especially when dissimilar metals are joined. California Proposition 65 warnings indicate the product contains chemicals linked to cancer and reproductive harm, so gloves and ventilation are advised during handling. Alignment must be checked before final torque to avoid stress on adjacent pipe runs.

Highlights

  • Schedule 40 rating handles high-pressure systems
  • 3-inch diameter fits standard industrial piping
  • 5-1/2-inch length suits tight installations
  • Black steel construction resists corrosion damage
  • California Prop 65 warning informs safe handling

Specifications

BrandLEGEND VALVE

Questions about this item

Does the 355-209E nipple generate noise, heat or draw power when installed in a system that runs all day?

No, the Schedule 40 black nipple is a passive steel fitting with no moving parts, so it produces no noise, no heat and consumes no power.

What piping components must already be in place for the 355-209E nipple to connect properly?

You need two female-threaded openings — such as couplings, valves or equipment ports — that accept 3 inch NPT threads on each end.

Will the 355-209E Schedule 40 nipple thread correctly onto older black-iron or galvanised fittings the buyer may keep?

Yes, standard NPT threads on the nipple match existing 3 inch black-iron or galvanised fittings, allowing a direct connection.

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