8mm) non return valve

The agitator must be protected against dry-running

They ensure that the liquid in the dosing tank is mixed constantly

DDA 30-4 AR-PP/E/C WITH ACCESS The SMART Digital DDA is a compact positive displacement

tp 100 110 4 a f a bqqe jw3 93426587 8mm) non return valveSingle 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