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Black steel threaded pipe nipple, 7 inches long, Schedule 40

Value Brand

Value Brand 1-1/4" x 7" Black Pipe Nipple Sch 40 coupling

SKU CH-M8AY-2WW14

Black steel Schedule 40 pipe nipple with threaded MNPT ends rated for 300 psi at 150 degrees F

  • Schedule 40 wall handles 300 psi at 150 °F
  • Electric-resistance weld gives leak-free joints
  • Threaded both ends for quick MNPT assembly
  • Black steel meets ASTM A-53 Type E and A-733
  • 7 in overall length fits standard 1-1/4 in runs

1-1/4" Schedule 40 Black Steel Pipe Nipple

This 7-inch nipple connects two female-threaded components in plumbing or gas systems. The pipe is made from welded black steel with electric resistance weld construction. Both ends carry male NPT threads for a secure joint. It meets ASTM A-53 Type E, ASTM A-733 and Grade B standards.

Pressure and temperature limits for threaded joints

The fitting handles a maximum working pressure of 300 psi at 150 degrees Fahrenheit. For saturated steam service the rating drops to 150 psi WSP. Exceeding either limit risks joint failure or leakage. The Schedule 40 wall thickness of 1/8 inch supports these ratings.

Nominal 1-1/4 inch size with 7-inch overall length

This single dimension set decides whether the nipple spans the required gap between fittings. The outside diameter measures 1 21/32 inches and the thread type is MNPT on both ends. Buyers needing a different length, diameter or thread pattern must select another part.

Highlights

  • Schedule 40 wall handles 300 psi at 150 °F
  • Electric-resistance weld gives leak-free joints
  • Threaded both ends for quick MNPT assembly
  • Black steel meets ASTM A-53 Type E and A-733
  • 7 in overall length fits standard 1-1/4 in runs

Specifications

BrandZORO SELECT

Questions about this item

Should I choose the 7-inch length or a different size for my 1-1/4 inch nominal pipe?

The 7-inch overall length suits runs needing that exact spacing; other lengths exist but this nipple is made for 1-1/4 inch nominal pipe with MNPT threads on both ends.

What does the 300 psi rating mean once the nipple is installed in my system?

It indicates the maximum working pressure at 150 degrees F; steam service is limited to 150 psi WSP under the same standards.

Does the MNPT x MNPT threading follow a specific standard that caps compatibility?

Yes, it meets ASTM A-53 Type E, ASTM A-733 and WWN 351, which define the thread form and pressure limits for Schedule 40 black steel nipples.

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