Question: Define the control and intruments used and what their use in the following CEDI P&ID DIagram? PI = Pressure Indicator FAL = Flow Alarm Low

Define the control and intruments used and what their use in the following CEDI P&ID DIagram?

Define the control and intruments used and what their use in the

following CEDI P&ID DIagram? PI = Pressure Indicator FAL = Flow Alarm

PI = Pressure Indicator

FAL = Flow Alarm Low

FE = Flow Element

FI = Flow Sensor/Indicator

AE = Element Analyzer

AI = Analyzer Indicator

RT = Resistivity Meter

FAL 1 DC power controller(s) FI AI 1 PI ......... FE AE PI 3 CEDI feed (RO permeate) HI HV1 FAL HV4 SV1 Dilute compartments SV2 FI Product FE PI PI 4 Concentrating compartments HV2 HV3 CEDI Module(s) Reject Figure 7.7 Typical CEDI system P&ID Table 7.3 Required Controls & Instrumentation Process Stream Controls and Instrumentation Dilute (product) Flow rate monitor and low flow alarm Inlet pressure, outlet pressure Inlet conductivity, outlet conductivity Inlet and outlet sample valves Flow rate monitor and low flow alarm Inlet pressure, outlet pressure Inlet and outlet sample valves Throttling valve (inlet side) Concentrate (reject)

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