reverse flow valve 1.High quality 2.Competitive price 3.Material: Stainless ... closed (shut-off type), or changes the flow direction of media (divert type).RV3 sanitary single ... actuator moves downwards pneumatically, the spring is reset. 2. The actuator moves upwards pneumatically, the spring is ... , flangeOptionsSmart controller24V DCSolenoid valve (1 or 2)Position sensor24V DCNPN/PNP position sensor ...