Anvil 390028645 Grooved Concentric Reducer 4x2.5 in

Product Description

The ANVIL 390028645 is a painted grooved concentric reducer designed for use in grooved piping systems. This fitting reduces pipe diameter from 4 inches to 2.5 inches and is finished with a protective painted coating to resist corrosion in typical mechanical system environments. It is installed by pipefitters and mechanical contractors working on fire protection, HVAC, and industrial piping systems where grooved-end connections are specified. The concentric design keeps the pipe centerline aligned through the transition, which simplifies layout and hanger placement in overhead and inline runs.

This reducer is suited for grooved mechanical piping installations in commercial and industrial applications. It is commonly used in wet-pipe and dry-pipe fire sprinkler systems, chilled water and condenser water loops, and process piping where a grooved-end fitting is required at a diameter transition. The painted finish makes it appropriate for exposed interior mechanical rooms and utility spaces.

Key Features

• Concentric reducer geometry maintains centerline alignment through the pipe size transition
• Grooved ends on both sides are compatible with standard grooved mechanical couplings and housings
• Painted exterior coating provides baseline corrosion protection for interior mechanical environments
• Reduces from 4-inch to 2.5-inch pipe for common diameter transitions in commercial piping systems

Compatibility

Designed as an OEM-style grooved fitting for use with standard grooved coupling systems in 4-inch to 2.5-inch pipe diameter transitions. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a qualified pipefitter or mechanical contractor in accordance with applicable local mechanical codes and the grooved coupling manufacturer's assembly instructions. Depressurize and drain the piping system fully before removing any existing fittings or couplings. Inspect groove dimensions on both pipe ends to confirm they meet the required groove standard before seating the coupling housing. Follow the coupling manufacturer's bolt torque sequence to ensure proper gasket seating and a leak-free joint.

Technical Specifications

• Inlet Size: 4 inches
• Outlet Size: 2.5 inches
• End Connection Type: Grooved
• Reducer Style: Concentric
• Finish: Painted

Standard Information

• Brand: ANVIL
• Manufacturer Part Number: 390028645