FrostControl Set JG automatic drain valve from Truma
Used in caravans and campers This is the best protection for water installations against frost.
When there is a risk of freezing (the temperature drops to approximately 3°C), the valve opens automatically, removing water from the installation. When the temperature reaches approximately 7°C, the valve will close again.
The valve works fully mechanically - without electricity.
The valve can be opened manually if necessary.