Asc 390033132 Grooved X Mpt Adapter Nipple 2.5x4 in

Product Description

The ASC Engineered Solutions 390033132 is a Gruvlok grooved x male pipe thread (MPT) adapter nipple designed to transition between grooved-end piping systems and threaded pipe connections. Manufactured from ductile iron, this fitting handles the mechanical demands of commercial and industrial piping systems where grooved couplings meet threaded components. At 2.5 inches by 4 inches, it provides a reliable, leak-resistant transition point and weighs 2 pounds. Licensed plumbers and pipefitters install this type of fitting during system assembly or repair where a grooved pipe segment must connect to a threaded valve, fitting, or equipment port.

This adapter nipple is suited for commercial plumbing, fire protection, and mechanical piping systems that use Gruvlok-style grooved pipe couplings. The 2.5-inch grooved end accepts a standard grooved coupling, while the 4-inch NPT male thread engages standard threaded fittings or equipment inlets. Typical install scenarios include mechanical rooms, fire suppression risers, and HVAC hydronic systems where transitions between grooved and threaded piping runs are required.

Key Features

• Ductile iron construction for strength and durability in demanding piping applications
• Grooved end designed for use with Gruvlok-style grooved couplings
• Male pipe thread (MPT) end for direct connection to standard NPT threaded fittings
• 2.5-inch by 4-inch configuration covers common transition sizes in commercial systems
• Compact 2-pound unit weight for easier handling during installation

Compatibility

Designed as an OEM-style grooved-to-threaded transition fitting for commercial and industrial piping systems using Gruvlok grooved coupling components at the 2.5-inch pipe size.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing codes such as the IPC. Depressurize and drain the affected piping section completely before removing or installing any fitting. Apply an appropriate thread sealant or PTFE tape to the MPT threads before making up the threaded connection. Ensure the grooved end is properly seated and the coupling gasket is correctly positioned before tightening the grooved coupling.

Technical Specifications

• Fitting Material: Ductile Iron
• Fitting Size: 2.5 inches x 4 inches
• Item Weight: 2 pounds

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 390033132