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pH Adjustment – Flow Paced

MAK Water’s pH Adjustment – Flow (PAF) plants are designed to automatically adjust and maintain the pH level of pressurised raw water prior to discharge to sewer/envrionment or reuse/recycling. The standard treatment process includes an inline pH analyser which monitors the pH level and a dosing pump to automatically dose liquid alkali/acid. Dual chemical dosing pumps (alkali/acid) are available for when the raw water pH varies to allow for correction of both low and high pH raw water.

The system components are sized to suit the raw water flow rate and daily usage. Optional equipment upgrades include; a flow transmitter, a static mixer if required to improve mixing, duty standby dosing pumps, dual chemical dosing pumps (alkali/acid). MAK PAF plants are available as skid mounted or containerised systems for easy deployment to remote locations.


Chemical Storage Tank SizeL601002005001,0002,5005,000
pH Level (target)pH6 ~ 8 (pH neutral) or as required
Raw Water Temperature °C15 ~ 35
Ambient Design Temperature°C5 ~ 45 (-5 ~ 50 for insulated containerised system)
Raw Water Flow Rate (max)m³/hr1,000 (higher flow available on request)
Raw Water Pressure (max)kPa600 (higher pressure available on request)
Power Supply-AC 240V, 1 phase, 50Hz
Power Consumption (approx.)kW0.5
Container Size (optional)ft10101010102020
Slid Sizemm1,300 x 600 x 1,5002,000 x 1,500 x 1,500


✓= Standard Supply o = Optional Supply - = Not Applicable

Skid Mounted Plant
Chemical Dosing Pump
Bunded Chemical Storage Tank
pH Analyser
Control System with Local Indicator (standard)
Containerised System c/w A/C & Lightsooooooo
Container Non-slip Floor Coating-----oo
Container Insulation (walls & ceiling)ooooooo
Container Side Access Door-----oo
Duty Standby Dosing Pumpsooooooo
Static Mixerooooooo
Dual Chemical Dosing (acid & alkali)ooooooo
Safety Shower & Eyewash Stationooooooo
PLC Control System with HMIooooooo
Alarm Signal Output for Client Interfaceooooooo
Premium Instrumentation Packageooooooo


InstrumentationStandard PackagePremium Package
Flow Switch
Float Switch (chemical storage tank)
Level Transmitter (4-20 mA, chemical storage tank)-
pH Analyser (4-20mA)
Flow Transmitteroo
Temperature Sensor & Alarmoo
Data Logger (pH level)-
Remote Monitoring & Control Capabilities-


Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm speci - fications. MAK Water takes no responsibility for any errors resulting from the use of information contained within this document.