Standard Dss Pipe And Instrumentation Diagram For 1- And 2-Pump Systems - Grundfos DDA Instrucciones De Instalación

4.5 Standard DSS pipe and instrumentation diagram for 1- and 2-pump systems

BACK
PRESSURE
VALVE
8
7
PRESSURE
RELIEF
VALVE
Fig. 2 Simplex DSS
BACK
PRESSURE
VALVE
8
7
PRESSURE
RELIEF
VALVE
Fig. 3 Duplex DSS
Pos. Description
1 Inlet valve
2 Y-strainer
3 Bleed valve
4 Calibration column
5 Dosing pump 1
6 Dosing pump 2
7 Pressure relief valve
8 Back pressure valve
9 Outlet valve
OUTLET
9 10
VALVE
PULSATION
12
13
DAMPENER
PRESSURE
JUNCTION BOX
GAUGE
W/GUARD
CONTROL PANEL
PI
3
11
BLEED
VALVE
DOSING
5
PUMP
3
OUTLET
9
10
VALVE
PULSATION 12
13
DAMPENER
PRESSURE
JUNCTION BOX
GAUGE
W/GUARD
CONTROL PANEL
PI
11
BLEED 3
VALVE
7
DOSING
5 6
PUMP 1
3 3
14
RETURN
TO TANK
OR
(OPTIONAL)
4
CALIBRATION
COLUMN
BALL
3
VALVE
1 INLET
VALVE
2
Y-STRAINER
14
RETURN
TO TANK
OR
(OPTIONAL)
3
DOSING
PUMP 2
4
CALIBRATION
COLUMN
BALL
3
VALVE
1
INLET
VALVE
2
Y-STRAINER
Pos. Description
10 Pulsation dampener
11 Bleed valve
12 Pressure gauge w/guard
13 Junction box or Control panel (optional)
14 Return to tank
9