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Anvil ductile iron threaded flange, zinc-plated finish, four bolt holes

Anvil

Anvil 311105209 Flange Ductile Iron Threaded 3 1/2 in

SKU CH-2088-CXMHM

Ductile-iron threaded flange rated to 285 psi with four bolt holes for Class 150 piping systems

  • Ductile iron construction resists cracking under pressure
  • Class 150 rating supports 285 psi working pressure
  • Zinc-plated finish protects against corrosion in wet environments
  • Four bolt holes simplify alignment during installation
  • Meets A197 material standard for reliable performance

Anvil 311105209 Flange 3 1/2 in

The Anvil 311105209 is a ductile iron threaded flange built for piping systems that require a 3 1/2 inch outside diameter. It suits installers and maintenance teams needing a Class 150 connection rated for 285 psi maximum operating pressure.

Capacity and pressure headroom

The flange handles up to 285 psi at Class 150, giving comfortable headroom for typical water, oil or gas lines operating well below that limit. It runs out when system pressure approaches the rated maximum or when a higher class rating is specified by the engineering design.

Ductile iron build and bolt pattern

Cast from ductile iron to A197 and zinc-plated for corrosion resistance, the body resists cracking under mechanical stress. Four bolt holes provide a standard mounting pattern, while the FNPT threaded bore allows direct assembly onto matching pipe without welding.

Highlights

  • Ductile iron construction resists cracking under pressure
  • Class 150 rating supports 285 psi working pressure
  • Zinc-plated finish protects against corrosion in wet environments
  • Four bolt holes simplify alignment during installation
  • Meets A197 material standard for reliable performance

Specifications

BrandANVIL

Questions about this item

Will the 3 1/2 in flange outside diameter match the bolt pattern on my existing Class 150 piping?

Yes, the flange is built to Class 150 with four bolt holes and a 3 1/2 in outside diameter, so it aligns with standard Class 150 flanges of the same nominal size.

How can I confirm the ductile iron flange is holding pressure after installation?

Pressurise the system up to the 285 psi maximum operating pressure and inspect every bolt hole and the FNPT joint for leaks; no weeping means the A197 casting and zinc plating are sealing correctly.

Does the box include the four bolts and gasket, or must I buy them separately?

Only the ductile iron flange is supplied; bolts, nuts and a matching gasket are not included and must be purchased separately.

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