Harco 69-310903 Hdpe Socket Fusion Coupling 3 in

Product Description

The HARCO 69-310903 is a 3-inch socket fusion coupling designed for HDPE (high-density polyethylene) water supply piping systems. This black HDPE fitting joins two sections of same-diameter pipe using the socket fusion method, which applies heat to both the pipe end and fitting socket before pressing them together to form a permanent, leak-free bond. It is sized at 3 inches and is intended for use in pressurized water distribution applications. Licensed plumbers and pipefitters are the primary installers for this type of fusion fitting.

This coupling is suited for residential and commercial water supply systems where HDPE pipe is the specified material. HDPE socket fusion fittings are commonly used in municipal water distribution, geothermal loop systems, irrigation mains, and underground service lines where corrosion resistance and long service life are required. The black color indicates standard HDPE formulation used in water service and non-potable applications.

Key Features

• 3-inch socket fusion connection for HDPE pipe
• Black HDPE construction offers corrosion resistance and flexibility
• Socket fusion joint creates a permanent, monolithic bond when properly fused
• Compatible with standard HDPE water service pipe of the same outside diameter and SDR rating
• No threading, gluing, or mechanical fasteners required

Compatibility

Designed as an OEM-style replacement and standard coupling for 3-inch HDPE water service pipe joined by socket fusion. Confirm pipe SDR rating and outside diameter match the fitting socket dimensions before installation.

Installation Notes

Socket fusion fittings must be installed by a trained plumber or pipefitter using proper socket fusion tools, including a heating iron with correctly sized face and socket inserts. Shut off and depressurize the water line before cutting or joining pipe. Follow the pipe and fitting manufacturer heating times and temperatures precisely, as under- or over-heating will result in a failed joint. Work must comply with applicable local plumbing codes and ASTM standards governing HDPE fusion procedures.

Technical Specifications

• Connection Size: 3 inches
• Connection Type: Socket Fusion
• Material: HDPE (High-Density Polyethylene)
• Color: Black
• Application: Water Supply
• Order Increment: 1

Standard Information

• Brand: HARCO
• Manufacturer Part Number: 69-310903