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Piping Products • Flange Accessories

Figure 74N - 150# 2-pc Ductile Iron Back-up Flange

Figure 74N
Catalog Spec Sheet Spec Sheet for Figure 74N

Always verify that you have the most recent product specifications
or other documentation prior to the installation of these products.

For use with Nupi Niron PP-RCT Flange adaptors only.


  • 150# Flange drilling
  • Cast ductile iron
  • IPS Sizes 2-24"
  • Finish: Black epoxy coating, 100 micron MIN

  • Material: ASTM A536 grade 65-45-12
  • Hardness: ISO 1083

  • Tensile strength: 65 KSI minimum
  • Yield strength: 45 KSI minimum
  • Elongation: 12% minimum
  • Hardness: HBW 160-210 (Brinell)

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