... limit and machinery limit design,accurate position,avoid gear with switch.4.Excellent sealing performance what sealing class is IP655. ... exquisite outlooks, various assembling methods with manual control and switch indication.17.Smart shape,perform reliably,brass gear,PPO parts ... 0.012Cubic Meter13x10x8.5(CM)/1-2pcs/0.011Cubic Meter Miniature lower Brass and SS304 ANSI motorised valve for ,HAVC, ...