Water Treatment Medium & Low Voltage VFD | SUNSIN Inverters

Medium & Low Voltage VFD Solutions for Water Treatment

Precision control medium & low voltage VFDs for energy-efficient water treatment facilities.

Traditional constant speed water pump system
  • Constant-speed water pumps run at full power all day, causing massive wasted electricity
  • Unstable water pressure leads to pipeline impact, pipe rupture and frequent equipment damage
  • Aeration blowers work with fixed air volume, failing to match real-time sewage treatment demands
  • Direct motor startup generates strong water hammer, shortening pump and valve service life
  • Conventional control lacks automatic adjustment, requiring frequent manual debugging

Core Advantages

Exclusive strengths of SUNSIN water treatment dedicated variable frequency drives

PID Constant Pressure Automatic Control

Built-in PID algorithm auto-adjusts pump speed to maintain stable pipeline water pressure, eliminate water hammer.

Significant Energy Saving

Dynamic load matching reduces pump/blower power consumption by 25%~40% under variable water flow conditions.

Soft Start & Stop Protection

Smooth startup avoids mechanical shock, effectively extend the service life of pumps, valves and pipelines.

Stable Corrosion-Resistant Cabinet

Sealed anti-dust enclosure adapts humid, corrosive on-site environment of water treatment workshops.

Main Application Scenarios

Full-process drive control for all water treatment equipment

SUNSIN water treatment VFDs cover the whole water processing flow, including raw water supply, aeration, sedimentation, filtration and sewage discharge, offering reliable energy-saving drive control for all core water treatment machinery.

Raw Water Supply Booster Pumps

Constant pressure control to stabilize municipal tap water transportation and reduce idle power loss.

Sewage Aeration Blowers

Sewage Aeration Blowers

Auto air volume adjustment according to water quality index to optimize aeration efficiency and save electricity.

Circulating & Filtration Pumps

Circulating & Filtration Pumps

Precise flow regulation for sedimentation tank and filter pool circulation systems.

Wastewater Discharge Pumps

Wastewater Discharge Pumps

Anti-blocking matching control adapts to variable sewage flow in drainage stations.

Chemical Dosing Agitators

Chemical Dosing Agitators

Low-speed high-torque stable drive for uniform mixing of water treatment agents.

Cooling Water Circulation Pumps

Cooling Water Circulation Pumps

Intelligent speed regulation for industrial wastewater recycling systems.

Recommended Matching Products

Matched medium & low voltage VFD models for different water treatment equipment

LV800 General-purpose Low Voltage VFD

Small & medium water pumps, agitators

MV2000 Medium Voltage VFD

Large flow water supply pumps, heavy-duty aeration blowers

Constant Pressure Special VFD

Tap water booster pump stations

Humid Environment Sealed VFD

Sewage treatment corrosive workshop

Frequently Asked Questions

Long-tail questions about water treatment VFD energy-saving solutions

Q1: How much electricity can water treatment VFDs save for pumps and blowers?
A: Under variable water flow and aeration load conditions, our VFD can cut power consumption by 25%~40%, effectively reducing daily plant operation costs.
Q2: Can these inverters eliminate water hammer damage to pipelines?
A: Yes. Built-in PID constant pressure control + soft start/stop function avoids sudden pressure surge, greatly reducing water hammer and pipe rupture risk.
Q3: Are sealed VFD cabinets suitable for corrosive sewage workshops?
A: Our humid anti-corrosion sealed VFD adopts dustproof and anti-chemical gas enclosure, stable long-term operation in sewage treatment corrosive environment.
Q4: Can medium voltage VFD be used for large aeration blowers in sewage plants?
A: MV2000 medium voltage series is specially designed for high-power large flow aeration blowers and raw water main pumps of large-scale water treatment plants.
Q5: Do you support custom PID parameters for special water treatment processes?
A: We provide customized internal logic and PID parameter setting according to your raw water, sewage, aeration and dosing process requirements.

Custom VFD Solutions for Water & Wastewater



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