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Malleable iron reducer coupling 4 by 2-1/2 FNPT Class 150

Value Brand

Value Brand Reducer Coupling 4 in x 2-1/2 in FNPT Malleable Class 150

SKU CH-PRWY-1BWRW

Malleable iron Class 150 reducer coupling connects 4 inch and 2-1/2 inch FNPT threads

  • Malleable iron construction provides reliable strength for plumbing systems
  • Class 150 pressure rating supports standard residential and commercial pipework
  • Female NPT threads on both ends allow direct connection to male-threaded pipe
  • Reduces from 4 in to 2-1/2 in pipe size for flexible system design
  • New condition ensures full factory integrity and clean threads

Reducer Coupling for 4 in and 2-1/2 in Pipe

This ZORO SELECT malleable iron reducing coupling connects a 4 inch female NPT pipe to a 2-1/2 inch female NPT pipe. It is rated for Class 150 service in plumbing and industrial piping systems. The fitting is new and ships directly from the supplier for orders meeting the minimum threshold.

Replaces Mismatched Thread Sizes

The coupling replaces the need for separate bushings or adapters when joining two different nominal pipe diameters with female NPT threads. The jump is worth it when a single Class 150 rated fitting simplifies the assembly and reduces potential leak paths in a new installation or repair.

Straightforward Threaded Installation

Installation requires cleaning the male threads on both pipes, applying suitable thread sealant or tape, and tightening each end into the coupling. What usually goes wrong is cross-threading during start-up or insufficient sealant leading to weeping at the joint under pressure.

Highlights

  • Malleable iron construction provides reliable strength for plumbing systems
  • Class 150 pressure rating supports standard residential and commercial pipework
  • Female NPT threads on both ends allow direct connection to male-threaded pipe
  • Reduces from 4 in to 2-1/2 in pipe size for flexible system design
  • New condition ensures full factory integrity and clean threads

Specifications

BrandZORO SELECT

Questions about this item

What thread size and type does the 4-inch end of this reducer coupling use?

The larger end has a 4-inch female NPT thread for connecting to a matching male pipe.

How should the threads be sealed during installation to prevent leaks?

Apply PTFE tape or pipe dope to the male threads before tightening the coupling by hand then with a wrench.

What material is the coupling made from and does it require corrosion protection?

It is cast from malleable iron rated Class 150; paint or coat the exterior if the installation is exposed to moisture.

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