Fonti industriali verificate
- Scheda tecnica per valvole industriali: ISO 22109 specifies general requirements for manual gearboxes used on industrial valves.
- Scheda tecnica per valvole industriali: ISO 5210 and ISO 5211 standardize mounting interfaces for multi-turn and part-turn actuators respectively.
- Scheda tecnica per valvole industriali: Matching interface dimensions do not replace verification of output torque, mechanical efficiency and self-locking capability.