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Zoro Select carbon steel concentric swage nipple, zinc plated, 1/2 inch NPT male ends

Zoro Select

Zoro Select Extra Heavy Concentric Swage Nipple 1/2 in Pipe

SKU CH-SWA8-BG00S

A carbon steel concentric swage nipple with zinc plating and NPT threads for Schedule 80 pipe connections

  • Carbon steel construction resists deformation under high pressure
  • Zinc plating protects against corrosion in damp environments
  • Class XH rating suits Schedule 80 piping systems
  • Concentric swage design enables smooth flow transition
  • Male NPT threads on both ends ensure secure connections

Zoro Select 1/2" Concentric Swage Nipple

This carbon-steel concentric swage nipple joins 1 in NPT male threads to 1/2 in NPT male threads for Schedule 80 piping systems. The zinc-plated finish provides corrosion resistance in industrial plumbing and hydraulic applications. It is designed for extra-heavy Class XH service where a step-down connection is required. The fitting is supplied new and ready for installation.

Build Quality and Thread Compatibility

Manufactured from carbon steel with a zinc-plated surface, the nipple withstands the pressure demands of Schedule 80 pipe. Both ends feature standard NPT male threads, allowing direct engagement with female-threaded fittings, valves or equipment without adapters. The concentric design keeps the bore centred, promoting smooth flow through the transition. Thread sealant or tape should be applied during assembly to ensure a leak-free joint.

Class XH Rating for Schedule 80 Systems

The single specification that determines suitability is the extra-heavy Class XH rating matched to Schedule 80 pipe. This class confirms the wall thickness and pressure capability required for high-pressure steam, water, oil or gas lines. Installers must verify that the connected piping and components share the same schedule and pressure class. Using this nipple on lighter-wall pipe would create a mismatch that could compromise system integrity.

Highlights

  • Carbon steel construction resists deformation under high pressure
  • Zinc plating protects against corrosion in damp environments
  • Class XH rating suits Schedule 80 piping systems
  • Concentric swage design enables smooth flow transition
  • Male NPT threads on both ends ensure secure connections

Specifications

BrandZORO SELECT

Questions about this item

What pipe schedule does the 1/2 in NPT end of this concentric swage nipple match?

The 1/2 in male NPT end is made for Pipe Schedule 80, which is the extra-heavy wall thickness this Class XH nipple is built to join.

What are the exact thread sizes and genders on each end of this swage nipple?

One end is a 1 in male NPT thread and the other end is a 1/2 in male NPT thread, both tapered for sealing with thread compound or tape.

How should the zinc-plated carbon steel threads be prepared before assembly to avoid leaks?

Clean both male NPT threads, apply PTFE tape or pipe dope in the direction of the threads, then tighten to the recommended turns-past-hand-tight for Schedule 80 connections.

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