Thermostatic mixing valve ESBE VTA522 50-75°C G1 1/4+R1 20-3.4 31621200

Thermostatic Mixing Valve – Precise Temperature Control in Your System

This thermostatic mixing valve ESBE VTA522 is a reliable solution for regulating water temperature in domestic hot water (DHW) systems and heating installations. It ensures comfort and safety by preventing scalding, while simultaneously enabling optimal energy utilization. This valve is particularly suitable for applications requiring a constant water temperature, regardless of fluctuations in hot and cold water supply.

The VTA522 valve, with a temperature regulation range of 50-75°C, performs excellently in both DHW systems with circulation and those without. Its asymmetric flow design guarantees a stable outlet temperature. Surface mounting simplifies installation and servicing. Constructed from high-quality materials, the valve is durable and corrosion-resistant.

Applications and Functionality

The ESBE VTA522 mixing valve finds wide use in both residential and professional installations. It is ideal for:

• Scalding protection: Maintains a safe water temperature at outlets, minimizing the risk of burns—especially critical for children and elderly users.
• Temperature control in underfloor heating systems: Enables precise adjustment of the heating medium temperature to meet system requirements, ensuring thermal comfort and energy efficiency.
• DHW systems with circulation: Maintains consistent water temperature throughout the entire system, eliminating the need to wait for water to heat up.
• Solar thermal systems: Can be used to blend water from solar collectors with municipal water supply to achieve an optimal output temperature.

Design and Specifications

The VTA522 valve features a robust construction and high manufacturing quality. It is equipped with 1-inch external threads on both inlet and outlet connections, ensuring easy installation in existing systems. Maximum flow temperature: 95°C; working pressure: 1.0 MPa (10 bar). Kvs value: 3.4, providing sufficient flow capacity for most applications. Note: The valve does not include a check valve or filter—these must be considered during system design or added as protective components. The valve does not feature a 38°C temperature lock or wall-mounting clips.