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Black forged steel merchant coupling, Class 300, 1 inch FNPT connection

Anvil

Anvil 0320201056 forged steel merchant coupling trap

SKU CH-0WFP-HTNPY MPN 0320201056

Connects 1-inch NPT pipes with a Class 300 black forged steel coupling rated for 2000 psi at 150 °F and 300 psi saturated steam at 550 °F

  • TypeDrain Components
  • Rated for 2000 psi at 150°F for high-pressure reliability
  • Saturated steam rated at 300 psi up to 550°F for demanding steam service
  • Operates from -20°F to 550°F for extreme temperature versatility
  • Built to ASTM A865 standard for material quality assurance
  • Black forged steel construction for corrosion-resistant durability

Forged steel Class 300 merchant coupling

The Anvil 0320201056 is a black forged steel merchant coupling built to Class 300. It provides a 1 inch FNPT connection for joining pipe sections in pressure piping systems. The fitting meets ASTM A865 and operates from -20 to 550 degrees Fahrenheit. It is supplied new for industrial and commercial plumbing installations.

Installers needing a high-pressure threaded joint

This coupling suits fitters assembling steam or hydraulic lines rated up to 2000 psi at 150 degrees Fahrenheit or 300 psi saturated steam at 550 degrees Fahrenheit. It is not intended for weld-only piping systems or for applications requiring a larger nominal bore than 1 inch. Buyers who need a different thread standard or a reducing configuration should select an alternative fitting.

1 inch FNPT connection

The single specification that determines compatibility is the 1 inch FNPT thread size. Only pipe and components with matching 1 inch FNPT threads will seal correctly in this Class 300 forged steel coupling.

Highlights

  • Rated for 2000 psi at 150°F for high-pressure reliability
  • Saturated steam rated at 300 psi up to 550°F for demanding steam service
  • Operates from -20°F to 550°F for extreme temperature versatility
  • Built to ASTM A865 standard for material quality assurance
  • Black forged steel construction for corrosion-resistant durability

Specifications

TypeDrain Components
BrandAnvil
Model0320201056

Questions about this item

What pipe size and thread type does the 0320201056 coupling accept?

The coupling fits 1 inch pipe with FNPT threads on both ends.

How do you seal the threads correctly on this Class 300 forged steel fitting?

Apply PTFE tape or pipe dope to the male threads only, then tighten to the recommended torque for 1 inch NPT; over-tightening can crack the forged steel body.

When should the coupling be inspected or replaced in a steam system?

Inspect annually for leakage, corrosion or thread deformation if the system operates near the 300 psi saturated steam limit at 550 °F.

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