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Black threaded pipe nipple, Schedule 40 finish

Legend Valve

Legend Valve 355-231E 4" x 7" Schedule 40 Black Nipple

SKU CH-JEAQ-KN258

Schedule 40 black steel nipple connects 4 inch pipe over a 7 inch length

  • Schedule 40 rating provides standard-pressure durability
  • 4-inch diameter fits matching pipe systems
  • 7-inch length suits common connection spans
  • Black steel finish resists corrosion in plumbing use
  • Proposition 65 notice discloses regulated chemical content

Product identity

The Legend Valve 355-231E is a 4" x 7" Schedule 40 black nipple designed for plumbing installations. It serves installers who need a standard-length threaded connector for joining female fittings in water, gas or oil lines.

Build integration

The nipple threads directly into two female NPT fittings to bridge a fixed 7-inch gap. It requires compatible Schedule 40 components and appropriate thread sealant to complete a leak-free joint. The piece frees the installer from cutting and threading custom pipe lengths on site.

Thermals and power

The fitting is a passive metal component with no moving parts, electrical draw or heat generation. It produces no noise and adds no thermal load to the system. Normal use imposes no power requirement beyond the fluid pressure the piping network already handles.

Highlights

  • Schedule 40 rating provides standard-pressure durability
  • 4-inch diameter fits matching pipe systems
  • 7-inch length suits common connection spans
  • Black steel finish resists corrosion in plumbing use
  • Proposition 65 notice discloses regulated chemical content

Specifications

BrandLEGEND VALVE

Questions about this item

What pressure rating does the Schedule 40 wall thickness provide for continuous service?

Schedule 40 indicates a standard wall thickness rated for typical residential and commercial water pressures at ambient temperature.

Does the black steel nipple run hot or create noise when water flows through it all day?

The nipple is a passive fitting; it generates no heat or noise of its own and simply conducts the fluid temperature present in the system.

What thread type must the mating fittings have for this 4" x 7" nipple to seal properly?

Both ends are cut with standard NPT taper threads, so the connecting couplings, valves or pipes must also use NPT threads.

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