... output torque,long product life for 100,000 times. 2. Electrical limit and machinery limit design,accurate position,avoid gear with switch. 3 ... .Material of main parts: Actuator: heat-resistant ABSSealing: PTFE, silicon rubber ball seat, EPDM and NBR stem seat, NBR o-ringsBody: brass ... EMS)/Air/Sea 2-way lower current motorized ball valve with water treament,solar hot water system