Maintenance and repair instructions Ball valve Series 20a
Maintenance and repair instructions Ball valve Series 20a Fig 1 - Series 20a Ball valve with Series 31a Actuator 0. Contents of the repair instructions 1. General 1 2. Design, operation and dimensions 2 3. Installation, start-up and maintenance 2 4. Assembly instructions 2 4.1 Preparation for assembly 2 4.2 Assembly of the DIN-Ball valve 2 4.3 Assembly of the ANSI-Ball valve 5 4.4 Tightening ...