THERMOSTATIC MIXING VALVE ESBE VTA522 31620400 G 1"1/4 20-43 °C SOLAR SYSTEM

ESBE VTA522 Thermostatic Mixing Valve – Code 31620400

The ESBE VTA522 (code 31620400) is a thermostatic mixing valve designed for domestic hot water systems and recirculation systems (HWC).
It ensures a consistently stable water temperature and reliable scalding protection, making it ideal for use with boilers, storage tanks, solar thermal systems, and low-temperature systems such as underfloor heating.

Technical Features
- Series / Model: VTA522 – Code 31620400
- Control range: 20–43°C
- Connections: G 1¼" male (ISO 228/1)
- Kvs: 3.5 – high flow rate with low pressure drop
- Nominal pressure: PN10
- Maximum fluid temperature: 95°C (temporary 100°C)
- Control stability: ±4°C (nominal conditions)
- Body material: DZR brass (dezincification resistant)
- Dimensions (A × B × C × D): 84 × 62 × 60 × 56 mm
- Weight: 0.95 kg
- Production: Made in Sweden

Advantages
- Maintains the mixed water temperature constant, even with pressure or flow rate variations.
- Integrated anti-scald function for maximum sanitary safety.
- Quality and reliability guaranteed by ESBE, a leading brand in the industry.

Applications
- Domestic hot water (DHW) distribution with a water heater or storage tank and HWC recirculation.
- Underfloor heating systems and low-temperature systems.
- Integration with solar thermal systems.

Installation Notes
- Observe the flow directions (H–C–M) marked on the valve body.
- For systems with recirculation, follow the installation diagrams recommended by ESBE for series VTA520.