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Black steel pipe nipple, threaded both ends, 4 inches long

Value Brand

Value Brand 3 in Steel Pipe Nipple NPT 4 in Schedule 40

SKU CH-W7P5-WHETB

Schedule 40 steel pipe nipple with NPT threads for air, gases, non-potable water and oils up to 300 psi

  • Steel construction resists corrosion with black finish
  • Threaded NPT ends connect air, gas, oil or non-potable water
  • Schedule 40 wall rated 300 psi at 150 °F
  • Electric-resistance weld ensures leak-free joints
  • Prop 65 notice included for California compliance

3-Inch Steel Pipe Nipple

This 3-inch nominal steel pipe nipple measures 4 inches in overall length and features male NPT threads on both ends. It is manufactured to Schedule 40 dimensions with an electric resistance welded construction and a black finish. The fitting is rated for a maximum operating pressure of 300 psi at 150 degrees F and a maximum steam pressure of 150 psi at 350 degrees F. It is globally sourced and supplied new.

Suits Air, Gas, Oil and Non-Potable Water Lines

This nipple is designed for use with air, gases, non-potable water and oils in Schedule 40 piping systems. It is not intended for potable water supply lines due to the material and coating. Installations requiring a different nominal diameter, wall schedule or overall length should select an alternative fitting. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Schedule 40 Pressure Rating Decides Fit

The Schedule 40 designation determines the wall thickness and the 300 psi pressure rating at 150 degrees F, which is the primary specification for system compatibility. Verify that your piping system specifies Schedule 40 components before installation. Using a different schedule will change pressure capacity and thread engagement.

Highlights

  • Steel construction resists corrosion with black finish
  • Threaded NPT ends connect air, gas, oil or non-potable water
  • Schedule 40 wall rated 300 psi at 150 °F
  • Electric-resistance weld ensures leak-free joints
  • Prop 65 notice included for California compliance

Specifications

BrandZORO SELECT

Questions about this item

How can I confirm the pipe nipple is holding pressure correctly after threading it into my Schedule 40 system?

Pressurise the line up to 300 psi at 150 °F or 150 psi steam at 350 °F and check for leaks at the NPT threads; the welded steel construction and black coating are rated for those limits.

What comes with the nipple and what extra parts are needed to complete the connection?

The box contains the 4-inch steel nipple with male NPT threads on both ends; you must supply compatible Schedule 40 female fittings, thread sealant or tape, and any required valves or flanges separately.

Which version of this fitting should I choose for a 3-inch nominal pipe size in a standard-pressure steel line?

Select the Schedule 40, 3-inch nominal size with 3 1/2-inch outside diameter and 4-inch overall length; it is the only variant listed for air, gases, non-potable water and oils at 300 psi.

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