Viega 78300 2.5 in Press End Full Port Ball Valve

Product Description

The VIEGA 78300 is a full-port ball valve designed for press-end installation in commercial and residential plumbing systems. Built with a brass body and EPDM softgoods, this valve provides reliable shutoff performance in hydronic, potable water, and general plumbing applications. The press-end connection style eliminates the need for soldering or threading, allowing faster installation with compatible press tooling. At 2.5 inches nominal size, it suits main distribution lines and larger branch connections where full-bore flow capacity is required. Licensed plumbers and mechanical contractors are the primary installers for this valve type.

The VIEGA 78300 is suited for larger-diameter press-fit piping systems in both new construction and retrofit projects. The full-port design minimizes pressure drop across the valve, making it appropriate for hydronic heating and cooling loops, domestic water distribution, and commercial mechanical rooms. The press-end style is compatible with standard press-fit copper or compatible piping systems using the appropriate jaw and ring size. No specific compatible model or system families were stated in the product data beyond the manufacturer model designation 2971.1XL.

Key Features

• Full-port ball design maintains maximum flow rate and minimizes pressure loss
• Press-end connection style enables flame-free, no-thread installation with press tooling
• Brass body construction provides durability in standard plumbing service conditions
• EPDM softgoods offer compatibility with potable water and hydronic fluid applications
• 2.5 inches nominal size suited for main and large-branch distribution lines

Compatibility

Designed as an OEM-style press-end ball valve for 2.5 inch nominal press-fit piping systems in residential and commercial plumbing and hydronic applications.

Installation Notes

Installation should be performed by a licensed plumber following applicable IPC and local mechanical codes. Shut off and depressurize the system and verify the pipe is dry before pressing the connection, as press fittings require a dry joint for proper sealing. Use only calibrated press tooling with the correct jaw profile specified for this fitting size and series. Do not apply heat to the valve body or fittings during or after installation.

Technical Specifications

• Nominal Size: 2.5 inches
• Connection Type: Press End
• Port Size: Full Port
• Body Material: Brass
• Softgoods Material: EPDM
• Model Designation: 2971.1XL

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 78300