For the protection of pressureless tanks and piping systems to avoid vacuum during discharging or cooling-down.

These vacuum valves are also called „sniffing valves'. They open in case of a vacuum and release the air until the vacuum has been alleviated.

connection types

• Male thread

usage

• emptying of tanks

To protect unpressurised containers and piping systems from vacuum formation during emptying or cooling.
These vacuum valves are also called 'sniffer valves'.
It opens in the event of negative pressure and allows air to pass through until the negative pressure is released again.