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Black steel pipe nipple with threaded ends

Legend Valve

Legend Valve 355-233E 4" x 9" Schedule 40 Black Nipple

SKU CH-KHRY-ETT59

A 4-inch Schedule 40 black steel nipple for joining threaded pipe sections

  • Schedule 40 wall thickness handles high-pressure systems
  • 4-inch diameter connects large-bore pipework
  • 9-inch length spans standard fitting gaps
  • Black steel finish resists corrosion in wet environments
  • California Proposition 65 warning discloses regulated chemical content

Legend Valve 355-233E Black Nipple

This Legend Valve 355-233E fitting is a Schedule 40 black nipple measuring 4" x 9". It serves plumbers and maintenance teams joining threaded pipe runs in water, gas or oil lines. The black steel construction suits standard pressure piping installations.

Schedule 40 Pressure Performance

The Schedule 40 wall thickness provides consistent strength under sustained system pressure. It resists deformation during continuous duty cycles in hydronic or compressed-air networks. Threaded ends maintain seal integrity when the line remains pressurised for extended periods.

Replaces Worn Threaded Nipples

This nipple replaces corroded or damaged black pipe nipples of the same diameter and length. The upgrade is worth it when existing threads leak or when reconfiguring a pipeline section during scheduled maintenance. California Proposition 65 warnings apply for cancer and reproductive harm.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 60% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

Does the 4" x 9" Schedule 40 black nipple generate noise, heat or draw power when installed in a plumbing system?

No, this passive steel nipple has no moving parts, electronics or power supply, so it produces no noise, no heat and consumes no electricity during continuous operation.

What existing pipework or fittings must I already have to connect this 4" Schedule 40 black nipple?

You need a 4" NPT female thread on each side — such as a matching black iron coupling, flange or valve — plus thread sealant or tape rated for steel pipe.

Will this Schedule 40 black nipple mate reliably with older black iron pipe and fittings already in my system?

Yes, it follows the same Schedule 40 dimensions and NPT threading used for decades, so it threads directly onto legacy 4" black steel pipe and fittings without adapters.

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