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External communication The Grundfos Dedicated Controls system can communicate with external units such as
The dosing head is composed of:
DDA 30-4 AR-PVC/E/C-F-32U2U2FG The SMART Digital DDA is a compact positive displacement
DDA 30-4 AR-PVC/T/C-F-31I002FG The SMART Digital DDA is a compact positive displacement
Pressure loading valves provide a constant counter-pressure and prevent siphoning They are installed in the discharge line after the pressure relief valve
cm 3 7 a r a v aqqv f a a n 99033706 External communication The Grundfos DedicatedCompact, reliable, horizontal, multistage, end suction centrifugal pump with axial suction port and radial discharge port. The shaft, impellers and chambers are made of stainless steel. The inlet and discharge parts are made of cast iron. The mechanical shaft seal is a special designed, unbalanced O ring seal. Pipework connection is via internal Whitworth pipe threads, Rp (ISO 7 1). The pump is fitted with a 3 phase, foot mounted, fan cooled
