Typical for applications are: requirement for robust and reliable products; butterfly valves; 3-position control signal; PN 16 pressure class.

The proposed combinations vary in: range of applications (open or closed circuits), amount of flow volume; robustness; level of tight shut-off.

Wafer type butterfly valves DN 40…600; suitable for operation in open and closed circuits; reinforced unsplit shaft above DN 350 as variant; tight-closing in accordance with EN 12266-1, leakage rate A; variable positioning time with SEZ31.1 auxiliary module.

Link to more information:

- Displayed combination: VKF46  SQL35
- Other suitable actuator: SQL36

Wafer type butterfly valves DN 40…200; suitable for operation in closed circuits; leakage rate  < 0.25% of k_VS value.

Link to more information:

- Displayed combination: VKF41  SAL
- Other suitable actuator: SQL35