Leakage control of the moving O-ring seal of Shutter Valves
For maxiumum product safety of sensitive media
For maxiumum product safety LIAG® free flow shutter valves are available with a leakage monitoring system of the only dynamic O-ring. This specific design identifies possibile wearing defects of the seal and prevents any contamination from the outside environment.
- Maxiumum product safety for aseptic processes
- No contamination from the outside environment by as a result of excessive wearing or a defective stem O-ring seal
- Quick acting valve due to low operating torque requirements (ball-bearing supported main shaft)
- Able to be retrofit to shutter valves
The special designed leakage chamber can act as a steam barrier or offer monitoring via means of a level conductor control (dilution of glycerine).
The pivoting axle is supported with a ball-bearing shaft for increased stability and less required operating torque compared with the standard shutter valve.
Technical Data Overview
|In contact with product:||Ra ≤ 32µin (Ra ≤ 0.8)|
|Inox parts in contact with product:||AISI 316L (1.4404 / 1.4435)|
|Other inox parts:||AISI 304 (1.4301)|
|O-ring seals:||EPDM, FKM (Viton®)‚ FEP, other grades upon request|
|Operating temperature:||230°F (110°C)|
|Short-term:||284°F (140°C) – optionally up to 392°F (200°C)|