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Orange ductile iron concentric reducer, grooved ends, 4 by 3 inches

Gruvlok

Gruvlok Concentric Reducer 4" x 3" Iron 1000 psi Orange

SKU CH-E1DH-VZ7H6

A ductile-iron grooved concentric reducer connects 4 in to 3 in pipe at up to 1000 psi and meets ASME B31.1, B31.9, ASTM A536 and NFPA 86 standards

  • Ductile iron construction delivers high strength for demanding piping systems
  • Grooved connection enables quick installation without welding or threading
  • Meets ASME B 31.1 and B 31.9 standards for code compliance
  • Rated to 1000 psi maximum pressure for reliable performance
  • Orange colour provides clear identification in complex pipe networks

Gruvlok Concentric Reducer 4" x 3

This ductile iron fitting connects grooved pipe systems at a 4 in x 3 in nominal size. It is rated for 1000 psi maximum pressure and coloured orange for identification. The component meets ASME B 31.1, ASME B 31.9, ASTM A536 and NFPA 86 standards. It suits installers joining different pipe diameters in fire protection or industrial piping networks.

Check grooved pipe compatibility and pressure rating

Verify that your existing piping uses a grooved connection type before ordering. Confirm the system design pressure does not exceed 1000 psi. Ensure the 4 in x 3 in nominal size matches the required reduction in your layout. The fitting complies with standards 31.1, 31.9, 536 and 86 for code acceptance.

Orange colour aids identification on site

The orange finish helps crews distinguish this reducer from other fittings during installation and inspection. No additional software, gaskets or hardware are bundled with this item. The single-piece ductile iron construction requires no assembly. Compliance mark 40 indicates conformity with the listed standards.

Highlights

  • Ductile iron construction delivers high strength for demanding piping systems
  • Grooved connection enables quick installation without welding or threading
  • Meets ASME B 31.1 and B 31.9 standards for code compliance
  • Rated to 1000 psi maximum pressure for reliable performance
  • Orange colour provides clear identification in complex pipe networks

Specifications

BrandZORO SELECT

Questions about this item

Does the Gruvlok concentric reducer arrive with any gaskets or bolts, or must those be purchased separately?

The fitting is supplied as the ductile iron body only; grooved gaskets and coupling bolts are not included and must be ordered separately.

How do I decide between the listed standards ASME B31.1, B31.9, ASTM A536 and NFPA 86 for my installation?

Choose the standard that matches your piping code — B31.1 for power piping, B31.9 for building services, A536 for the ductile iron material grade, and NFPA 86 for oven and furnace piping.

What does the 1000 psi rating mean when the reducer is installed in a grooved piping system?

It indicates the maximum working pressure the ductile iron body can withstand at ambient temperature when assembled with compatible grooved couplings and gaskets.

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