Viega 87425 Propress 3 Way Mixing Valve Model 2976.3 3/4 Inch

Product Description

The Viega 87425 is a ProPress 3 Way Mixing Valve, sold under model number 2976.3, designed for professional plumbing and hydronic heating installations. This valve features a 3/4 inch press connection size, making it a reliable choice for HVAC contractors, plumbers, and mechanical installers who need a fast, flame-free joining method. The ProPress system eliminates the need for soldering or threading, which reduces installation time and improves job site safety. Three-way mixing valves are used to blend hot and cold water streams to a controlled output temperature, making them essential components in radiant floor heating systems, domestic hot water blending, and hydronic distribution loops. The Viega 87425 features a brass body construction, which offers excellent corrosion resistance and long service life in potable water and hydronic applications. Press connections are made from silicon bronze, a material well suited for press-fit systems that must maintain a secure, leak-free seal under repeated thermal cycling. The EPDM seals provide flexibility and durability across a wide range of operating conditions and are compatible with both hot and cold water service. The valve measures approximately 7.03 inches in total length, 5.22 inches at dimension A, 2.88 inches at H1, and stands 5.87 inches in height. These compact dimensions allow for straightforward installation in tight mechanical spaces. Viega ProPress fittings and valves are widely recognized in the trade for their speed, reliability, and compatibility with standard press tooling. This 3 way mixing valve is a practical solution for any job that requires precise temperature blending without soldering. It is suited for residential and light commercial hydronic systems.

• 3/4 inch ProPress connection for fast, flame-free installation compatible with standard Viega press tooling
• Brass body with silicon bronze press material and EPDM seals for reliable, long-lasting performance in hydronic and potable water systems
• Three-way mixing design for precise hot and cold water blending in radiant heating, domestic hot water, and hydronic distribution applications

Product Highlights

The Viega 87425 ProPress 3 Way Mixing Valve delivers efficient, tool-pressed installation and durable brass construction for professional plumbing and hydronic heating systems. Its compact size and press-fit design make it a dependable choice for trade professionals who need speed and reliability on the job.

Product Information

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 87425

Technical Specifications

• Model: 2976.3
• Size: 3/4 inch
• Total Length (L): 7.03 inches
• Dimension A: 5.22 inches
• Dimension H1: 2.88 inches
• Height: 5.87 inches
• Body Material: Brass
• Press Material: Silicon Bronze
• Seal Material: EPDM