... operation, Automatic (receive 4-20mA signal)Work ConditionEnvitonment temperature: -30°C --- 60°CMaterialPump head: SUS304, SUS316, PVC, PTEFDiaphragm: PTFEValve: SUS304, SUS316 ... : Viton, PVC, SUS304, SUS316Tubing: PE, PVCTechnical ParameterMeasurements Project Case GB-S series Diaphragm Dosing Pump