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Black steel pipe nipple with threaded ends 4 in long

Value Brand

Value Brand Pipe Nipple Steel 1 1/2 in NPT 4 in Schedule 40

SKU CH-BD7X-8TY1H

Steel pipe nipple with 1 1/2 inch NPT threads, 4 inch length, Schedule 40 rating, 300 psi working pressure at 150 degrees F

  • Schedule 40 steel handles 300 psi at 150 °F
  • 1 1/2 in NPT threads connect air, gas, oil and non-potable water lines
  • Electric-resistance weld gives consistent wall strength
  • 4 in overall length suits tight piping runs
  • Black finish protects steel during storage and install

Steel pipe nipple for air, gas and oil lines

This 1 1/2 inch NPT threaded nipple connects Schedule 40 piping in air, gas, non-potable water and oil systems. The male-to-male design suits installers who need a straight four-inch section between two female fittings. It is not for potable water or applications that require a certified drinking-water component.

Pressure and temperature limits of the fitting

The welded steel body handles up to 300 psi at 150 degrees Fahrenheit for general fluid service and 150 psi at 350 degrees Fahrenheit for steam. Exceeding either rating risks joint failure, so the installer must verify system conditions before use. No higher pressure or temperature capability is stated.

Black-coated welded construction with male threads

Electric resistance welding forms the seam and the black finish protects the steel surface during handling and installation. Both ends carry 1 1/2 inch NPT male threads, so the nipple threads directly into compatible female couplings, valves or equipment ports without adapters. The schedule 40 wall thickness matches standard heavy-duty piping practice.

Highlights

  • Schedule 40 steel handles 300 psi at 150 °F
  • 1 1/2 in NPT threads connect air, gas, oil and non-potable water lines
  • Electric-resistance weld gives consistent wall strength
  • 4 in overall length suits tight piping runs
  • Black finish protects steel during storage and install

Specifications

BrandZORO SELECT

Questions about this item

Should I pick the 1 1/2 in NPT Schedule 40 nipple or a different size for my air line?

Choose this nipple when your system uses 1 1/2 in NPT threads and requires Schedule 40 wall thickness; the 4 in overall length and 1 57/64 in outside diameter fit standard fittings of that size.

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

It means the steel nipple can safely handle up to 300 psi at 150 °F in air, gas, oil or non-potable water service; steam service is limited to 150 psi at 350 °F.

How does the NPT threaded connection affect the pressure limit in practice?

The male NPT threads on both ends seal with standard pipe fittings, and the 300 psi @ 150 °F rating already accounts for the threaded joints when assembled correctly.

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