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where a pressurised system has advantages
DDA 17-7 AR-PVC/T/C-F-32I002FG The SMART Digital DDA is a compact positive displacement
The non-return valve can be disassembled and cleaned without stopping the water flow
The motor efficiency is classified as IE5 in accordance with IEC 60034-30-2
Pressure loading valves provide a constant counter-pressure and prevent siphoning They are installed in the discharge line after the pressure relief valve
tp 80 150 4 a f a bqqe jw3 93426595 where a pressurised system hasSingle 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
