Sera diaphragm pumps are oscillating displacement pumps for dosing liquids. The medium to be pumped is separated from the drive by a diaphragm. They are used everywhere leak-free and exact dosing is important, such as for aggressive, odorous, abrasive, radioactive, flammable, viscous or toxic media.  All pumps series 4 are available with variable electronic control (Series C).

Features:

• high dosing accuracy
• long diaphragm service lifelong
• linear control
• leak-free
• low-maintenance
• Atex-compliant versions are available
• unlimited dry running safety
• actuators with position controllers for automatic stroke length change
• three-phase motors suitable for frequency converter operation (frequency converter excl. from the scope of supply)
• diaphragm monitoring
• controllable variant (serie C)
• suction height up to 8 m.W.C. (serie C)
• Materials: pump body and valves in PVC, PP, PVDF, PP.FRP, PVDF-FRP, 1.4571; valve balls in PTFE, 1.4401, valve seals in EPDM, FPM e FEP riv.

Serie RF 409.2 - RF 410.2 
Serie C409.2 Pro+ e  C410.2 controlled