To protect the door frame from damage and to preserve the drop seal, press plates are the method of choice.
When an automatic drop seal is mounted on a door, contact between the trigger and a door element (usually the door frame) is required, because this is the only way the seal can be triggered. As a rule, the pressure plate is screwed into the door frame of hinged doors as inconspicuously as possible. This provides a robust contact surface onto which the trigger of the seal is pressed and thus released. Especially in the case of door frames made of a sensitive material, damage such as scratching can be successfully avoided.
Occasionally, press plates can also act as an extension of the frame so that surface mounted automatic drop seals can be actuated where it was previously impossible. The requirements for a press plate therefore depend mainly on the following factors:
A press plate guarantees protection against damage to the door frame and ensures an automatic drop seal's long-lasting and reliable sealing performance of the sealing function of an automatic drop seal.