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Galvanised malleable iron hex-head pipe plug, 1 inch MNPT

Anvil

Anvil 0319902441 1" MNPT Galvanized Plug trap

SKU CH-F6WF-WE267 MPN 0319902441

A 1-inch male NPT galvanized malleable-iron plug rated for 300 psi at 150 °F and temperatures from -20 °F to 350 °F

  • Product typeDrain Components
  • Main materialHAWA
  • 1" Male NPT plug fits standard drain lines
  • Galvanised malleable iron resists corrosion
  • Class 150 rating handles 300 psi at 150 °F
  • Operates from -20 °F to 350 °F
  • Solid hex-head design allows secure installation

Anvil 1" MNPT Galvanized Plug

This Anvil drain component is a solid hex-head plug built from malleable iron with a galvanized finish. It carries a Class 150 rating and connects via 1" male NPT threads. The fitting suits residential and light-commercial plumbing systems that need a reliable threaded closure.

Threaded closure for iron pipe systems

The plug installs directly into a matching 1" female NPT port on malleable-iron fittings or nipples. No pre-applied sealant or separate gasket is included, so the installer applies thread compound or tape of their choice. Its solid construction leaves the full bore open when removed for maintenance or inspection.

Rated for 300 psi at 150 °F

Under sustained pressure the plug holds 300 psi at temperatures up to 150 °F and remains serviceable from -20 °F to 350 °F. It is not intended for applications that exceed the Class 150 pressure class or for systems requiring an integrated sealing washer.

How it compares

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

Price $4.99
Cheaper than about 93% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameAnvil
Model name0319902441
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

What is the maximum operating pressure this 1" MNPT galvanized plug can withstand at 150°F?

The plug is rated for a maximum operating pressure of 300 psi at 150 degrees Fahrenheit, which is the pressure limit encountered first under sustained use.

How much heat can the malleable iron body and galvanized finish tolerate during continuous operation?

The material handles a temperature range from -20 degrees to 350 degrees Fahrenheit, so all-day heat within that span will not degrade the iron or coating.

Which thread standard must the mating port follow for this plug to seal correctly?

The plug uses a 1 inch Male NPT thread, so the receiving port must be a 1 inch Female NPT opening.

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