Thermostatic mixing valve ESBE VTA522 45-65°C G1 1/4+R1 20-3.4 31621100
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TECHNICAL DATA
Sales unit dimensions and weight: 1 pcs
Thermostatic mixing valve ESBE VTA522 45-65°C G1 1/4+R1 20-3.4 31621100
Thermostatic Mixing Valve – Comfort and Safety in Your System
This thermostatic mixing valve ESBE VTA522 is a reliable solution for precise temperature control of domestic hot water and heating systems. Designed with both professional installers and end-users in mind, it ensures optimal comfort and safety. The valve performs excellently in both circulating and non-circulating domestic hot water systems, and can be easily integrated with additional temperature control devices.
Functionality and Applications
The VTA522 valve, with a temperature regulation range of 45-65°C, is designed for surface mounting. Its asymmetric flow design ensures effective protection against scalding. It can be used in various configurations:
- Domestic hot water (DHW) systems: at point-of-use and on the supply line.
- Underfloor heating systems: (special attention required for flow parameters and temperature settings).
- Solar heating systems: as a temperature regulation element in the circuit.
- Circulating DHW systems: ensuring constant availability of hot water at a safe, consistent temperature.
Thanks to compatibility with compression fittings (CPF) or external threads (G), the valve is easy to install and integrate into existing hydraulic infrastructure.
Features and Benefits
The ESBE VTA522 valve stands out with a range of features that translate into high functionality and reliability:
- Precise temperature control: 45-65°C range allows customization to individual user needs.
- Scald protection: Asymmetric flow design minimizes scalding risk—especially critical in installations accessible to children or elderly users.
- High flow capacity: Kvs 3.4 ensures efficient water flow, even under high demand.
- Durability and reliability: Constructed from high-quality materials, guaranteeing long-term, maintenance-free operation.
- Versatility: Compatibility with various connection types (1" external thread) enhances installation flexibility.
- High-temperature resistance: Maximum flow temperature of 95°C, with short-term tolerance up to 100°C, enabling operation under demanding conditions.
This valve is an ideal solution for installers seeking a dependable component to build efficient and safe heating and DHW systems. For end-users, it means enhanced comfort and the assurance that water temperature will always be optimal and safe.

