We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black steel pipe nipple with threaded ends, 7 inches long

Value Brand

Value Brand Pipe Nipple Steel 3/4 in NPT 7 in

SKU CH-KH77-D54KR

Steel pipe nipple with NPT threads handles air, gas, oil and steam at 300 psi

  • Handles air, gas, oil and non-potable water service
  • Schedule 40 steel rated for 300 psi at 150 °F
  • Steam duty up to 150 psi at 350 °F
  • Electric-resistance welded construction for leak-resistant threads
  • 3/4 in NPT threads fit standard Schedule 40 piping

Steel pipe nipple for industrial piping

This 3/4 inch NPT threaded nipple is made from welded steel with a black coating. It suits air, natural gas, non-potable water, oil and steam lines in Schedule 40 systems. The 7 inch overall length connects two female-threaded components in a straight run.

Pressure and temperature limits in service

The fitting handles up to 300 psi at 150 degrees F for general fluids and 150 psi at 350 degrees F for steam. Electric resistance weld construction maintains integrity under these conditions. No moving parts mean silent operation and zero power draw.

Threaded Schedule 40 connection requirements

Both ends use 3/4 inch NPT threads so the nipple mates with matching Schedule 40 fittings, valves or equipment. The 1 3/64 inch outside diameter fits standard pipe wrenches for installation. It does not suit potable water systems or pressures beyond the rated limits.

Highlights

  • Handles air, gas, oil and non-potable water service
  • Schedule 40 steel rated for 300 psi at 150 °F
  • Steam duty up to 150 psi at 350 °F
  • Electric-resistance welded construction for leak-resistant threads
  • 3/4 in NPT threads fit standard Schedule 40 piping

Specifications

BrandZORO SELECT

Questions about this item

How do I install the 3/4 in NPT threaded ends on Schedule 40 steel pipe, and what step is often missed?

Clean threads thoroughly, apply pipe-thread sealant or tape rated for 300 psi at 150 Degrees F, tighten to the fitting compatibility spec, then pressure-test before covering the joint.

What maintenance or replacement will the black-coated steel nipple need over time?

Inspect the electric-resistance-weld seam and black finish annually for corrosion or scale; replace if wall loss appears or if steam service exceeds 150 psi at 350 Degrees F.

What limit appears first during sustained high-pressure steam use?

The 150 psi maximum steam pressure at 350 Degrees F is reached well before the 300 psi air or water rating, so steam duty governs the design envelope.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.