Functions
Part 1 • Page 6-1
Part 1 – Operating Instructions
Rev. 6.4 dated 2022-02
Software Released Version: 1
(Eco)RO Dia II
Part 1 • Chapt
er 6
6.
Functions
6.1
Process diagram
6.1.1
RO Dia II
Figure 6-1:
Process diagram RO Dia II
Key for RO Dia II
VF:
Pre-filter
SF:
Sterile filter
M1:
Pump 1
M2:
Pump 2
M3:
Pump 3
MM1.1-2.2: Membrane module(s)
Y2:
Solenoid valve for internal RO I circulation
Y8:
Solenoid valve for RO II concentrate
Y9:
Solenoid valve for concentrate discharge
Y10:
Feed valve
NV2:
Throttle valve for RO II concentrate return
NV3:
Throttle valve RO II concentrate
NV4:
Throttle valve RO I concentrate
TISHAH1: Feed temperature
PI 1-6:
Manometer
PISAL1:
Pressure sensor level regulation storage tank
PSAH1:
Pressure switch for excessive ring piping
pressure
PSAL2:
Pressure too low before ROII
PSAL4:
Pressure too low loop return
CISAHH1: Permeate conductivity
CIS 1:
Raw water conductivity
FISCAL1: Flow meter permeate to loop
FISCAL2: Flow meter permeate loop return
FISCAL3: Flow meter for concentrate to drain
FI4:
Flow meter concentrate ROI to tank
ÜV1:
Overflow valve for loop
RSV:
Check valve
DG:
Surge tank
PH2:
Sampling cock for ring piping return flow
PH3:
Sampling cock for soft water
K1:
Shut off valve for emergency
operating mode
K3:
Shut off valve for emergency
operating mode
K4:
Tank drain valve
K5:
Shut off valve
K6:
Shut off valve for ring piping entry
K7:
Shut off valve for ring piping exit
VL:
Supply tank
Option:
ÜV2:
Overflow valve
Y30:
Solenoid valve for shear force
rinsing
PH1:
Sampling cock for ring piping
supply flow
PI2-4:
Analogue signal to PV
