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Galvanised malleable iron union with female NPT threads

Value Brand

Value Brand 2" FNPT Galvanized Union Class 300

SKU CH-NP36-N3G8Y

A 2-inch FNPT galvanized malleable iron union rated Class 300 for 600 psi water, oil and gas at 150°F and 300 psi saturated steam, meeting ASME B16.39 and ASTM A197 standards

  • Galvanised malleable iron resists corrosion for long service life
  • Class 300 rating handles 600 psi at 150 °F for demanding systems
  • FNPT threads allow direct connection to standard 2 in pipe
  • Meets ASME B 16.39 and ASTM A197 for code compliance
  • Saturated steam rated to 300 psi for versatile applications

2" FNPT Galvanized Union Class 300

This 2-inch galvanized malleable iron union carries an FNPT connection and meets ASME B16.39 and ASTM A197 standards. It is rated for 600 psi at 150 degrees F WOG and 300 psi saturated steam pressure. The fitting suits industrial piping systems that require a separable joint.

Plumbing crews needing a Class 300 union for steam

Installers who require a higher pressure class or a different connection type such as socket weld or flanged ends should select another fitting. The product is restricted from sale in California because it contains a chemical known to cause cancer and reproductive harm.

Sustained pressure and temperature performance

Under continuous load the union maintains its 600 psi rating at 150 degrees F water, oil or gas and 300 psi for saturated steam. Galvanized malleable iron construction resists corrosion during extended service in compliant jurisdictions.

Highlights

  • Galvanised malleable iron resists corrosion for long service life
  • Class 300 rating handles 600 psi at 150 °F for demanding systems
  • FNPT threads allow direct connection to standard 2 in pipe
  • Meets ASME B 16.39 and ASTM A197 for code compliance
  • Saturated steam rated to 300 psi for versatile applications

Specifications

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Questions about this item

What size and thread type of pipe do I need to connect to this 2" FNPT galvanized union?

You need 2-inch pipe with male NPT threads to match the union's female NPT connection.

Will this Class 300 union handle the same pressure as my existing Class 150 galvanized fittings?

No, this union is rated for 600 psi WOG at 150°F and 300 psi saturated steam, which exceeds Class 150 ratings.

How can I confirm the union meets the ASME B16.39 standard after installation?

The union body carries the ASME B16.39 marking and is made to ASTM A197 specifications for galvanized malleable iron.

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