4. Actuators, Valves, Flipper Valves, Butterfly Valves, Consoles, Zone Valves and Accessories 4.1 Actuators 4.1.10 Accessories FGA/HM Remote Set Point unit for HM135x... and HM0450... WS/HM Way Switch for HM135x.. und HM0450... P/HM-20 Potentiometer 10 kOhm for Actuator HM1353... Lift 20mm P/HM-30 Potentiometer 10 kOhm for Actuator HM135x... Lift 30mm P/HM-50 Potentiometer 10 kOhm for Actuator HM0450... Lift 50mm P/HM-60 Potentiometer 10 kOhm for Actuator HM0450... Lift 60mm P/HM-501 Potentiometer 10 kOhm for Actuator HM3800 Lift 50mm P/HM-601 Potentiometer 10 kOhm for Actuator HM3800 Lift 60mm ...back