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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.

How it compares

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

Price $4.99
Cheaper than about 83% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro 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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