Valve Type: Push/pull couplings. Interchangeable to ISO 7241-1 'A' Standards. Features: Connection by pushing the male coupling. Disconnection by pulling the male part. Shut off by poppet valve. Connectable with male part (ISO A) under pressure. Disconnection under pressure not allowed. Breakaway function according to ISO 5675. Interchangeability according to ISO 7241-1 part A.