The VFI is based on the principle of vortex shedding behind a bluff body

Per questo scopo è stato progettato un piedistallo che si adatta all'involucro D1 e D2

Furthermore

vent tubing

tp 40 140 4 a f a bqqe gw3 93426297 The VFI is based onSingle stage, close coupled, volute pump with in line suction and discharge ports of identical diameter. The pump is of the top pull out design, i. e. the power head (motor, pump head and impeller) can be removed for maintenance or service while the pump housing remains in the pipework. The pump is fitted with an unbalanced rubber bellows seal. The shaft seal is according to EN 12756. Pipework connection is via PN 16 DIN flanges (EN 1092 2 and ISO