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Galvanised malleable iron reducing tee with three female NPT ports

Value Brand

Value Brand 510-544HP Reducing Tee coupling

SKU CH-EEGM-G4YQJ

Galvanised malleable-iron reducing tee joins 1 in and 3/4 in FNPT branches at up to 300 psi

  • Reduces pipe diameter with 1 in x 3/4 in FNPT ends
  • Galvanised malleable iron resists corrosion in water systems
  • Class 150 rating handles 300 psi at 150 °F
  • Meets ANSI B16.39 and WW-P-521 dimensional standards
  • Operates from -20 °F to 150 °F for steam or water

Galvanised Reducing Tee

The Zoro Select 510-544HP is a Class 150 malleable iron reducing tee with FNPT threads. It connects a 1 inch pipe run to two 3/4 inch branches in water, oil or gas systems. The fitting meets ANSI B16.39 and federal specification WW-P-521 for dimensional conformity.

Installers needing a single 300 psi branch

Plumbers and maintenance engineers who require a durable, threaded junction rated for 300 psi at 150 °F will find this tee suitable. It is not intended for systems that exceed the 150 psi saturated steam limit or operate outside the -20 °F to 150 °F temperature range.

Standards-driven interchangeability

Compliance with ASTM A-197 material specification and federal dimension standards means the tee mates reliably with other Class 150 fittings. No additional sealants or proprietary tools are mandated by the supplied documentation.

Highlights

  • Reduces pipe diameter with 1 in x 3/4 in FNPT ends
  • Galvanised malleable iron resists corrosion in water systems
  • Class 150 rating handles 300 psi at 150 °F
  • Meets ANSI B16.39 and WW-P-521 dimensional standards
  • Operates from -20 °F to 150 °F for steam or water

Specifications

BrandZoro Select

Questions about this item

What thread standard must my existing pipes follow to connect to the 1" x 3/4" x 3/4" FNPT ends?

The tee uses FNPT threads conforming to ANSI B 16.39, so any pipe with matching NPT threads will seal correctly.

Will the galvanized malleable iron body rated to Class 150 handle the same 300 psi WOG pressure as my older black-iron fittings?

Yes, the Class 150 rating and ASTM A-197 material support 300 psi WOG at 150 °F, matching typical black-iron limits.

How can I verify the joint is holding pressure after assembly?

Pressurise the system up to 300 psi WOG at 150 °F and check for leaks; the fitting meets Federal Specification WW-P-521 for that duty.

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