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Black malleable iron pipe union, one inch female NPT threads, class 150

Anvil

Anvil 463 Black Malleable Iron Union 1 in

SKU CH-EK0C-2GR06

A black malleable iron union for Schedule 40 pipe with female NPT threads, rated Class 150 at 300 psi

  • Class 150 rated for 300 psi at 150 °F
  • Malleable iron construction resists cracking under pressure
  • 1-inch female NPT threads connect Schedule 40 pipe
  • Model 463 union allows quick disassembly for maintenance

1-inch Black Malleable Iron Union

The Anvil 463 is a Class 150 pipe union made from black malleable iron for Schedule 40 piping systems. It connects two 1-inch female NPT threads and handles a maximum operating pressure of 300 psi at 150 degrees Fahrenheit. This new fitting suits plumbing installations that require a detachable joint rated for standard pressure and temperature service.

Suits installers needing a 1-inch NPT union

Builders who need a different nominal pipe size or a higher pressure class should look at other fittings. This union does not fit metric or compression connections and is not intended for applications above its rated pressure or temperature. Buyers requiring stainless steel, brass or a different thread standard will need an alternative product.

How it compares

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

Price $15.99
Cheaper than about 55% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameAnvil

Questions about this item

What pipe schedule is required for this 1 in union to seal properly?

The union is rated for Schedule 40 pipe, matching the 1 in female NPT threads on both ends.

Will this Class 150 malleable iron union hold pressure if I reuse my existing 300 psi rated steel piping?

Yes, the union withstands 300 psi at 150 °F, so it matches the pressure rating of your current steel pipe.

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