Primary Keys in Release Secondary Keys Simultaneously
316L Stainless Steel
The key exchange unit (KEX) is used in an interlocking sequence to link together other devices in the Prosafe range and caters to more complex operating sequences. The operating principle is such that no secondary keys can be removed from the unit until all primary keys have been inserted, rotated and trapped. The primary keys remain trapped until all secondary keys have been re-inserted, rotated and trapped.