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Galvanized steel pipe nipple, threaded both ends, silver-grey finish

Zoro Select

Zoro Select 1-1/4" MNPT x 4" Galvanized Steel Pipe Nipple Sch 40

SKU CH-BP0F-WZXR1

Galvanized steel pipe nipple with 1-1/4" MNPT threads, 4" overall length, Schedule 40 rating, rated 300 psi at 150°F

  • ColorTransparent
  • TypePipes, Valves & Fittings
  • Galvanised coating resists corrosion in wet environments
  • Schedule 40 wall handles 300 psi at 150 °F
  • 1-1/4 inch NPT threads fit standard fittings
  • Electric-resistance welded steel gives consistent strength
  • Suitable for air, gas and potable water systems

Zoro Select 1-1/4" Galvanized Pipe Nipple

This Schedule 40 steel nipple connects threaded fittings in air, gas or potable water lines. The 4 inch overall length suits standard plumbing runs where a short male-to-male extension is required. The galvanized coating provides corrosion resistance for extended service life in damp environments.

Installation notes and common issues

The male NPT threads on both ends engage with Schedule 40 female fittings using pipe sealant or tape. Electric resistance welded construction ensures a consistent bore but the seam can snag debris if the interior is not flushed before assembly. Over-tightening risks cracking the fitting or distorting the threads.

Pressure and temperature limits

Maximum operating pressure is rated at 300 psi at 150 degrees Fahrenheit for water, air or gas service. Steam applications are limited to 150 psi at 350 degrees Fahrenheit. The Schedule 40 wall thickness defines these boundaries; exceeding either pressure or temperature rating compromises the welded joint integrity.

Highlights

  • Galvanised coating resists corrosion in wet environments
  • Schedule 40 wall handles 300 psi at 150 °F
  • 1-1/4 inch NPT threads fit standard fittings
  • Electric-resistance welded steel gives consistent strength
  • Suitable for air, gas and potable water systems

Specifications

BrandZORO SELECT
ColorTransparent
TypePipes, Valves & Fittings

Questions about this item

How can I confirm the nipple is handling pressure correctly after installation?

Pressurise the line up to 300 psi at 150 °F or 150 psi steam at 350 °F and check for leaks at the threaded joints.

What comes with the nipple and what must I supply?

The nipple itself is supplied; you must provide compatible Schedule 40 fittings and thread sealant.

Which size and schedule should I select for a 1-1/4" system?

Choose the 1-1/4" nominal size with Schedule 40 walls to match the 300 psi pressure rating.

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