... be worm gear, pneumatic actuator and electric actuator. Actuator connection acc.ISO5211. ** Eccentric disc, dual parallel joist structure, ... saw-tooth sides, embedded directly into disc, bolt-free connection, easy on-line replacement, uniform & tight sealing effect, ... acc. ISO 5211.** Face to face dimension acc. ISO 5752. ** Long neck facilitates connection to pipeFusion epoxy coating** Removable seat ...