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Galvanised steel pipe nipple, 4 inch MNPT by 6 inch TBE, Schedule 40

Value Brand

Value Brand 4 in MNPT x 6 in TBE Galvanized Steel Pipe Nipple Sch 40

SKU CH-N0TF-PN8FK

Galvanized steel pipe nipple with 4-inch male NPT and 6-inch TBE ends for air, gas, and potable water systems up to 792 psi

  • Galvanized coating resists corrosion for long service life
  • Schedule 40 wall handles 792 psi at 650 °F
  • Welded steel construction rated to 600 °F maximum temperature
  • 4 in MNPT threads connect to Class 150 fittings
  • Suitable for air, gases and potable water systems

Application Range

This galvanized steel pipe nipple connects air, gas and potable water lines in residential and commercial plumbing systems. The welded construction and Schedule 40 wall thickness suit Class 150 fitting compatibility across a broad pressure range.

Thermal and Pressure Limits

Rated for continuous operation up to 600 degrees Fahrenheit and a maximum pressure of 792 psi at 650 degrees Fahrenheit, the nipple also handles steam at the same pressure and temperature. Minimum service temperature extends to minus 20 degrees Fahrenheit.

Installation Fit

The 4 inch nominal pipe size with a 4 1/64 inch inside diameter mates with standard NPT threads on one end and a TBE connection on the other. Globally sourced Grade A steel construction provides the mechanical strength required for gravity flow and pressurized installations alike.

Highlights

  • Galvanized coating resists corrosion for long service life
  • Schedule 40 wall handles 792 psi at 650 °F
  • Welded steel construction rated to 600 °F maximum temperature
  • 4 in MNPT threads connect to Class 150 fittings
  • Suitable for air, gases and potable water systems

Specifications

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Questions about this item

How do I install the 4 in MNPT x 6 in TBE galvanized steel nipple without damaging the threads?

Apply pipe-thread sealant or tape to the male NPT threads only; hand-tighten then turn one to two full turns with a pipe wrench on the nipple body, not the threaded ends, to avoid cross-threading the tapered joint.

What maintenance or replacement will the galvanized coating need over time?

The galvanized finish resists corrosion in air, gases and potable water; inspect periodically for white rust or pitting — if the coating is breached, replace the nipple rather than attempting recoating.

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

The maximum operating pressure of 792 psi at 650 °F is the limiting factor; steam service is rated at the same 792 psi, so pressure capacity drops if temperature approaches 650 °F.

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