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Galvanized ductile iron floor flange with four bolt holes

Anvil

Anvil 1" FNPT Galvanized Floor Flange 311105407

SKU CH-WF0S-NGY1S

A 1-inch galvanised ductile-iron floor flange with FNPT threads, four bolt holes and a Class 150 rating for -20 °F to 150 °F service

  • 1 in FNPT connection fits standard pipe threads
  • Galvanized ductile iron resists corrosion in wet environments
  • Class 150 rating handles up to 150 psi working pressure
  • Four bolt holes allow secure mounting to floor or wall
  • Operating range from -20 to 150 degrees Fahrenheit

1" FNPT Galvanized Floor Flange

The Anvil 311105407 is a ductile iron floor flange with a galvanized finish. It connects a 1 inch nominal pipe via FNPT threads to a flat mounting surface. The flange carries a Class 150 pressure rating and operates from -20 to 150 degrees Fahrenheit. Four bolt holes secure the four inch diameter flange to floors or walls.

Plumbing installers needing a threaded floor

This flange suits installers who need a durable, galvanized ductile iron fitting for water, air or oil lines at Class 150 pressure. It is not for systems exceeding the 150 degree Fahrenheit temperature limit or the Class 150 pressure rating. Buyers requiring a different nominal pipe size, a different thread type or a non-galvanized finish should select another fitting.

Sustained load behavior at Class 150

Under continuous pressure up to the Class 150 rating the ductile iron body resists deformation and the galvanized coating protects against corrosion. The four bolt pattern distributes mounting stress evenly across the flange face. The material remains stable throughout the full -20 to 150 degrees Fahrenheit operating range without thermal fatigue.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $28.99
Pricier than about 67% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameANVIL

Questions about this item

What pipe size must the buyer already have to thread this 1" FNPT flange onto it?

The flange accepts a 1-inch nominal pipe with male NPT threads for a direct connection.

Will the four bolt holes on this Class 150 flange align with an existing ANSI Class 150 bolt pattern?

Yes, the four-hole pattern follows the Class 150 standard so it matches existing Class 150 flanges.

How can the installer confirm the galvanized ductile iron flange is rated for the system temperature after assembly?

The flange is rated from -20 to 150 degrees F, so verify the operating temperature stays within that range.

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