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Small galvanized steel square head pipe plug with male threads

Anvil

Anvil 1/8" MNPT Galvanized Square Head Plug 319901443

SKU CH-E0EW-XSWQY

Galvanized steel square-head plug with 1/8 in male NPT threads, rated 300 psi at 150 °F and 150 psi at 350 °F steam

  • 1/8 in NPT male thread fits standard pipe sizes
  • Galvanised steel resists corrosion in water and air systems
  • Rated 300 psi at 150 °F for reliable pressure sealing
  • Withstands 150 psi steam at 350 °F for high-temperature service
  • Solid plug construction with no pre-applied sealant for flexible installation

Anvil 1/8" MNPT Square Head Plug

This Anvil galvanized steel plug fits 1/8 inch male NPT threads. It is rated for 300 psi at 150 degrees F and 150 psi at 350 degrees F saturated steam. The solid construction handles temperatures from -20 to 350 degrees F. No thread sealant or seal is included in the package.

Suitable for Class 150 piping systems

Installers closing off unused ports in water, air or low-pressure steam lines will find this plug matches the required pressure class. It is not for systems that exceed the stated pressure or temperature limits. Buyers needing a different thread size, a hex head or a plug with pre-applied sealant should select another fitting.

300 psi maximum operating pressure

The 300 psi rating at 150 degrees F is the primary figure that determines whether this plug meets the design pressure of the circuit. Verify the system pressure against this value before specifying the part.

How it compares

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

Price $1.27
Cheaper than about 97% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameANVIL

Questions about this item

How can I confirm the 1/8" MNPT galvanized square head plug is sealing correctly after installation?

Pressurise the system up to 300 psi at 150 °F or 150 psi at 350 °F steam; no leaks at the threads or square head indicate the solid plug is working as intended.

What comes with the Anvil 319901443 plug and what must I supply myself?

The box contains the galvanized steel square head plug only; you must provide pipe thread sealant or tape and a wrench that fits the square head.

Which version of the Anvil 319901443 should I choose for my pressure and temperature needs?

This single model is rated 300 psi at 150 °F and 150 psi at 350 °F, covering the full -20 °F to 350 °F range; select it if those limits match your system.

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