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Anvil malleable iron flanged floor trap, plain finish, four bolt holes

Anvil

Anvil 0310105408 Flanged Floor Trap 1" FNPT Class 150

SKU CH-524Z-FSJ5C MPN 0310105408

A flanged floor trap with 1-inch FNPT connection and Class 150 malleable iron construction

  • Product typeDrain Components
  • Main materialHAWA
  • Malleable iron construction meets A197 standard for durable installations
  • Class 150 rating suits low-pressure floor drain systems
  • Four bolt holes simplify secure mounting to floor
  • Flanged x FNPT connection fits 1-inch pipe directly
  • New condition ensures full factory specification compliance

Anvil 1" Flanged Floor Trap

The Anvil 0310105408 is a raised-face flange designed for 1-inch nominal pipe size connections. It features a flanged end with four bolt holes mating to an FNPT threaded end. The fitting is cast from malleable iron to ASTM A197 and carries a Class 150 rating. It is supplied in a plain finish and is not rated for pressure service.

Plumbers needing a 1-inch transition piece

This component suits installers joining a flanged pipeline to a female-threaded pipe or fitting at 1-inch nominal size. The malleable iron construction handles standard mechanical and thermal loads in drainage or low-pressure piping. It will not serve systems requiring a pressure-rated joint, a different nominal diameter, or a welded connection instead of a bolted flange.

Straightforward bolt-up installation

Alignment is simple: position the 4-inch diameter flange against the mating face, insert bolts through the four holes, and thread the FNPT end onto the male pipe. Common issues include cross-threading the taper threads, omitting suitable thread sealant, or over-tightening the flange bolts and cracking the iron casting. Ensure the mating flange surface is flat and clean before assembly.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 72% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameAnvil
Model name0310105408
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

What size pipe must I already have to connect this 1" FNPT flanged trap?

You need a 1-inch nominal pipe with male NPT threads to mate with the female NPT end of this fitting.

Can I bolt this Class 150 malleable-iron flange to an existing cast-iron drain flange that uses the same four-hole pattern?

Yes, the four bolt holes on the 4-inch outside-diameter flange align with standard Class 150 patterns used on older cast-iron floor flanges.

After installation, how can I confirm the trap is seated and leak-free without pressure-test equipment?

Run water through the drain and watch the joint; no seepage at the flange face or threads means the A197 malleable-iron fitting is sealing correctly.

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