Mixing valve VTS 522 1 1/4" ET 50 - 75° C

The thermostatic mixing valve VTS 520/550 can be used in domestic hot-water systems in a central spot directly in-line with the heat generator. It is heated up by a solar heating where high hot-water temperatures may occur in the tank and where a constant mixed-water temperature regulation and an anti-scald protection is required for the total system or a part thereof.
Furthermore, the thermal control valve in the hot water pipe should be equipped with a heat-insulating loop to reduce thermal load. Further mixed-water temperature control devices are installed directly at the tapping points of showers, basins, etc. to increase safety and comfort.
This series is also suitable for domestic hot-water installations equipped with hot water circulation.
In Germany, the DVGW work sheets W551 - W553 should be observed.

Technical data:
- service water / drinking water
- water as a medium in sealed systems
- water with anti-freeze additives (glycol = 50% mixture)
- maximum operating pressure: 10 bar
- maximum differential pressure: 3 bar
- maximum operating temperature: 110° C

Versions:
Series VTS 522 / 523 output: lateral
Series VTS 552 /553 output: bottom