Function
When the valve is closed (non-actuated position), there are always two seals between the separated pipelines. If one seal is defective, the resulting leakage will be directed through the leakage outlet into the periphery, without mixing with the product in the second pipeline.
Application Examples
VARIVENT® double-seal valves type C and double-seat valves type K are predominantly used in areas where hygienic is not critical, e.g. CIP systems and gas blocks (brewery)
The Valve Types
Valve type K represents a typical double-seat valve with two independent valve discs in which these two seals are located.
Valve type C, on the other hand, is a double-seal valve in which these two seals are together with the leakage chamber in between them in a valve disc.
In both versions, two seals prevent any mixture between a product line and a line carrying a cleaning media.
Double-seal valves, type C valves | Double-seat valves, type K |
DN 25 – DN 150 | DN 25 – DN 150 |
OD 1" – OD 6" | OD 1" – OD 6" |
|
IPS 2" – IPS 6" |