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Galvanized malleable iron pipe coupling with female NPT threads

Value Brand

Value Brand 5P923 1-1/2" FNPT Galvanized Coupling

SKU CH-FKE8-3PESS

A 1-1/2 inch FNPT galvanized malleable iron coupling rated for 300 psi water, oil, gas at 150°F and 150 psi steam, meeting ASME B16.3, B16.4, ASTM A197, A47, FM, NSF-61, AB1953 and UL standards

  • Galvanized malleable iron resists corrosion
  • FNPT threads create a secure pipe joint
  • Class 150 rating handles 300 psi at 150 °F WOG
  • Meets ASME B 16.3 and B 16.4 plus ASTM A47 and A197
  • NSF-61 and AB1953 listed for potable water use

1-1/2" FNPT Galvanized Coupling

This galvanized malleable iron coupling connects two 1-1/2 inch FNPT threaded pipes in water, oil or gas lines. It meets ASME B16.3 and B16.4 dimensions and is rated for 300 psi at 150 degrees F WOG. The fitting suits residential, commercial and industrial plumbing systems requiring Class 150 pressure performance.

NSF-61 and AB1953 listed

The coupling carries NSF-61 certification for drinking water contact and complies with AB1953 low-lead requirements. FM and UL listings confirm suitability for fire protection and general safety applications. These approvals allow installation in potable water, fire sprinkler and saturated steam services up to 150 psi.

Threaded installation

The FNPT threads accept standard 1-1/2 inch male pipe threads without special tools beyond pipe wrenches and thread sealant. Galvanized coating resists corrosion but can flake if overtightened; apply tape or compound evenly to avoid leaks. Verify system pressure does not exceed the 300 psi WOG rating before pressurising.

Highlights

  • Galvanized malleable iron resists corrosion
  • FNPT threads create a secure pipe joint
  • Class 150 rating handles 300 psi at 150 °F WOG
  • Meets ASME B 16.3 and B 16.4 plus ASTM A47 and A197
  • NSF-61 and AB1953 listed for potable water use

Specifications

BrandZORO SELECT

Questions about this item

Will the galvanized malleable iron threads need re-taping or replacement after repeated assembly?

The galvanized malleable iron threads resist corrosion under normal service; re-tape with PTFE tape each time the joint is broken and inspect for galling before re-use.

What pressure limit is reached first during continuous operation at elevated temperature?

Saturated steam pressure of 150 psi is the lower ceiling compared with the 300 psi WOG rating at 150 °F.

Does the coupling generate heat or noise when water flows through it all day?

As a passive fitting it adds no noise or heat; the fluid temperature simply follows the system conditions.

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