This valve assembly, only available in automatic version, uses a combination of two main butterfly valves between flanges connected by a channel forming an air space.
This channel is equipped with leakage microvalve and an optional air space washing microvalve.
When both valves are closed, the venting of the air space reveals a fault on either of the valves.
Diameters
From DN 25 up to DN 150
Working conditions
|
Maximum temperature +120°C |
Minimum temperature 0°C |
|
Working pressure 400 kPa to 1000 kPa |
Vacuum resistance 0,4 cm3/s |
|
Maximum supply pressure 800 kPa (8 bar) |
Minimum supply pressure 450 kPa (4,5 bar) |
Brochures
