# Settings

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This function is available for valve series 620, 651, 653, 655 and 670.

When opening, the sealing ring is lifted (in case of 651 and 653 via compressed air). The plate remains in its position and waits for the set delay time.

This gives the O-ring time to release itself from the plate. The occurrence of the stiction effect can be reduced in this way.

Parameter | Description
--- | ---
Enable | Activate the function
Delay Homing | Delay time until start of Homing First opening after a power down
Delay Close | Delay time at all further openings after the Homing