General 6.2.3.4 Grit Transfer General 1 Method of Grit Transfer () (P/S) Solids handling pump unit 1 Method of Grit Transfer () (P/S) Air lift pump Solids handling pump unit Ram pump unit Air lift pump Ram pump unit 6.2.3 Non-Powered Vortex Separators (If Required/Provided) 6.3 Grit Transfer Equipment 6.2.3.1 General 6.3.1 Solids Handling Pump Units (If Required/Provided) 1b Grit Backwashing System Required/Provided (Y/N) 6.3.1.1 General (P/S) 2 Equipment Designation or Model No. (S) 1 Equipment Designation or Model No. (S) Separator Configuration () (P/S) 2 Maximum Operating Speed (rpm) 3 Allowable (1500*) (P) Free-standing Design (S) Installed in a wet well 6.3.1.2 Orientation and Support Structure 6.2.3.2 Grit Separator 1 Orientation () (P/S) 1 Separator Material(s) (P/S) Horizontal Vertical 6.2.3.3 Grit Backwashing System 2 Support Structure Material (S) (If Required/Provided) 1 Type of Backwashing System 6.3.1.3 Casing Required/Provided (P) Water/Air 2 Casing Material (P/S) Water Backwashing Systems Flange Type (PN 16*) (If Required/Provided) 5 (P/S) 6 Casing Wear Rings (P/S) 1 Washwater Availability/ Requirements (P/S) Required/Provided (Y/N) Pressure and Flow Rate 6 Fixing Method (P/S) Supply Pressure (bar) Flow rate (l/min) 6 Material(s) (P/S) Type () Final effluent 6.3.1.4 Impeller Screened effluent Potable water 1 Impeller Type () (P/S) Filtration Level (Microns) Closed Semi-open Valve Type () (P/S) Open 2 Vortex Full bore, ¼ turn, Spiral vane actuated* Other (specify) Solenoid
General 1 Method of Grit Transfer () (P/S) Solids handling pump unit Air lift pump Ram pump unit 6.2.3 Non-Powered Vortex Separators (If Required/Provided) 6.2.3.1 General 1b Grit Backwashing System Required/Provided (Y/N) (P/S) 2 Equipment Designation or Model No. (S) 3 Separator Configuration () (P/S) Free-standing Installed in a wet well 6.2.3.2 Grit Separator 1 Separator Material(s) (P/S) 6.2.3.3 Grit Backwashing System (If Required/Provided) 1 Type of Backwashing System Required/Provided (P) Water/Air Water Backwashing Systems (If Required/Provided) 1 Washwater Availability/ Requirements (P/S) Pressure and Flow Rate Supply Pressure (bar) Flow rate (l/min) Type () Final effluent Screened effluent Potable water Filtration Level (Microns) 2 Valve Type () (P/S) Full bore, ¼ turn, actuated* Solenoid 6.2.3.4 Grit Transfer General 1 Method of Grit Transfer () (P/S) Solids handling pump unit Air lift pump Ram pump unit 6.3 Grit Transfer Equipment 6.3.1 Solids Handling Pump Units (If Required/Provided) 6.3.1.1 General 1 Equipment Designation or Model No. (S) 2 Maximum Operating Speed (rpm) Allowable (1500*) (P) Design (S) 6.3.1.2 Orientation and Support Structure 1 Orientation () (P/S) Horizontal Vertical 2 Support Structure Material (S) 6.3.1.3 Casing 2 Casing Material (P/S) 5 Flange Type (PN 16*) (P/S) 6 Casing Wear Rings (P/S) Required/Provided (Y/N) 6 Fixing Method (P/S) 6 Material(s) (P/S) 6.3.1.4 Impeller 1 Impeller Type () (P/S) Closed Semi-open Open Vortex Spiral vane Other (specify)
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