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A round zinc-plated malleable iron flange with four bolt holes

Value Brand

Value Brand Flange 5P970 3 7/8 in Thrd Malleable Iron

SKU CH-39F2-NR588

Threaded malleable iron flange connects 1¼ in pipe, rated 300 psi with four bolt holes

  • Threaded flange fits 1 1/4 in pipe for secure plumbing connections
  • Malleable iron body with zinc plating resists corrosion in water systems
  • Class 150 rating handles up to 300 psi operating pressure
  • Four bolt holes simplify alignment during installation
  • Meets A197 standard for reliable performance in commercial applications

Zoro Select 5P970 Flange Overview

The Zoro Select 5P970 is a malleable iron flange designed for threaded pipe connections in plumbing systems. It features a 3 7/8 inch outside diameter with four bolt holes for secure mounting. The zinc-plated finish provides corrosion resistance for extended service life. This Class 150 rated fitting handles a maximum operating pressure of 300 psi.

Replaces Worn or Damaged Flanges

This component replaces corroded, cracked or leaking flanges in existing threaded piping networks. The upgrade is worth it when the current fitting shows signs of thread degradation or seal failure under pressure. The A197 malleable iron construction restores structural integrity at the joint. It maintains the same nominal pipe size and bolt pattern for direct interchangeability.

Integrates With Threaded Pipe Assemblies

The flanged by FNPT connection mates directly with 1 1/4 inch nominal pipe size threaded components. The 3/4 inch overall length keeps the assembly compact within the piping run. Four bolt holes accept standard hardware to join mating flanges or equipment. The zinc plating protects the iron substrate in water and air exposure environments.

Highlights

  • Threaded flange fits 1 1/4 in pipe for secure plumbing connections
  • Malleable iron body with zinc plating resists corrosion in water systems
  • Class 150 rating handles up to 300 psi operating pressure
  • Four bolt holes simplify alignment during installation
  • Meets A197 standard for reliable performance in commercial applications

Specifications

BrandZoro Select

Questions about this item

What bolt-hole pattern does the 3 7/8 in flange require for mounting?

The flange has four bolt holes arranged on a 3 7/8 in outside diameter, designed for Class 150 piping systems.

Which thread sealant works with the zinc-plated malleable iron FNPT connection?

Use PTFE tape or a non-hardening pipe dope rated for 300 psi; over-tightening the female NPT threads is the common error that cracks the iron.

How often should the zinc plating be inspected for corrosion in water service?

Check the coating annually; if white rust appears, clean and apply a cold-galvanising compound to maintain the 300 psi pressure rating.

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