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Black steel pipe nipple, 1/2 inch MNPT threads both ends, Schedule 80

Value Brand

Value Brand 1LMC3 1/2" MNPT x MNPT Black Steel Pipe Nipple Schedule 80

SKU CH-703N-VDRMP

Black steel pipe nipple with MNPT threads on both ends, rated 2000 psi at 150 °F and 300 psi steam at 550 °F

  • Schedule 80 wall handles 2000 psi working pressure
  • Seamless black steel resists leaks at threaded joints
  • ANSI/ASME B 1.20.1 threads ensure reliable sealing
  • ASTM A106 grade rated for 300 psi steam at 550 °F
  • 1/2 in MNPT x MNPT fits standard pipe connections

1/2" Schedule 80 black steel nipple

This 1/2" Schedule 80 black steel nipple provides a 2-inch threaded connection for plumbing systems. It meets ANSI/ASME B1.20.1, ASTM A106 and ASTM A733 standards. The seamless construction suits water, oil, air and steam lines. It is not intended for applications requiring larger diameters or different thread types.

Sustained pressure and temperature performance

The nipple handles a maximum working pressure of 2000 psi at 150 degrees Fahrenheit. For steam service it supports up to 300 psi at 550 degrees Fahrenheit. Schedule 80 wall thickness of 9/64 inch and a 53/64 inch outside diameter maintain integrity under continuous load. Systems exceeding these ratings need heavier components.

Threaded installation and common issues

Both ends feature MNPT threads for direct assembly into female fittings. Apply suitable thread sealant to prevent leaks. Over-tightening can distort the threads or crack the fitting. The fixed 2-inch length offers no adjustment, so measure the required gap before purchase. Misaligned piping stresses the joint and reduces service life.

Highlights

  • Schedule 80 wall handles 2000 psi working pressure
  • Seamless black steel resists leaks at threaded joints
  • ANSI/ASME B 1.20.1 threads ensure reliable sealing
  • ASTM A106 grade rated for 300 psi steam at 550 °F
  • 1/2 in MNPT x MNPT fits standard pipe connections

Specifications

BrandZORO SELECT

Questions about this item

Does the 1/2 in Schedule 80 nipple generate heat or noise when it carries 2000 psi at 150 Degrees F all day?

No — it is a solid black-steel pipe nipple with no moving parts, so it produces no noise and no self-generated heat; any temperature rise comes only from the fluid inside.

What thread sealant or tape must I already have to make the MNPT x MNPT joints leak-free?

Standard PTFE tape or pipe-thread compound rated for 2000 psi at 150 Degrees F is required on both male NPT ends before assembly.

Will the 53/64 in outside diameter and 9/64 in wall thickness thread into my existing ANSI/ASME B 1.20.1 fittings?

Yes — the nipple follows ANSI/ASME B 1.20.1 and ASTM A733, so it matches any 1/2 in NPT fitting built to the same standard.

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