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Integrated & Side-Stream Water Treatment | YONGFAN
8 Product Families · Filtration · Physical Descaling · Side-Stream · Dosing

Integrated & Side-Stream Water Treatment Equipment

Integrated and side-stream water treatment equipment must match solids load, water chemistry, temperature and cleaning duty; the wrong process can leave fouling untouched or add unnecessary blowdown.

Compare YONGFAN backwash filters, electronic descaling units, packaged circulating-water processors, side-stream treatment (1–3% flow), condenser rubber ball cleaners, and automated chemical dosing skids.

ZPG Filtration 3,500 – 130 μm
Side-Stream ZCPL 1 – 3% Circ Flow
Dosing Tanks 40 – 1,000 L
Pressure Classes ≤1.6 MPa Standard
YONGFAN ambient-temperature filtration deaerator
Circulating & Side-Stream Treatment Solids Interception · Physical Scale Conditioning · Online Condenser Cleaning
01 / Process Selection

Fouling Persists When Every Water Problem Is Called Scale

Cooling loops lose thermal performance from mineral scale, suspended solids, corrosion sludge, or bio-slime; these mechanisms require distinct physical or chemical treatment equipment.
YONGFAN multi-media water filter
Water Treatment Principles

Why One Device Cannot Solve All Fouling

Per CDC Cooling Tower Legionella Guidance, physical devices must be matched with monitored water management programs rather than relying on unverified sterilization claims.

Confusing Solids with Mineral Scale

Applying an electronic descaler to water loaded with suspended sand, rust, or silt leaves particulate fouling completely untouched.

Impact: Blocked strainers & clogged chiller tubes

Full-Flow vs Side-Stream Mismatch

Installing massive full-flow filters when continuous 1–3% side-stream filtration (ZCPL) achieves loop turnover with a fraction of the cost.

Impact: Excessive equipment footprint & pump head loss

Unrealistic Disinfection Claims

Relying on a single physical device for 100% sterilization without an active cooling-tower biocide and monitoring program violates safety standards.

Impact: Unchecked legionella and bio-slime buildup

Temperature Boundary Violations

Installing WHQC (max 50 °C) on an 80 °C heating loop because it shares physical appearance with KGS (max 85 °C).

Impact: Thermal breakdown of electronic sensors & seals

Matching Equipment to the Specific Removal Mechanism

Select based on foulant type, water analysis, temperature boundary, and plant room drain capacity.

Solids Interception ZPG automatic backwash filtration down to 130 μm
Side-Stream Loop ZCPL treating 1–3% circulating flow continuously
Condenser Scrubbing EDLS circulating sponge balls through heat exchanger tubes
Chemical Dosing KYJY automated meter dosing with 40–1,000 L tanks
02 / Portfolio Showcase

Integrated & Side-Stream Product Families

Detailed engineering review of YONGFAN’s eight specialized water-treatment systems for closed loops, cooling towers, condensers, and dosing skids.
01 · SGV Series Inline Electronic Treatment

SGV Electronic Water Treatment Device

High-frequency electromagnetic controller connected to an inline treatment vessel. Designed for scale-conditioning duties in clean-water systems that do not require physical particulate filtration or automatic backwashing.

Operating Mode
Electromagnetic Treatment
Filtration Screen
None (Clean Water Duty)
Power Supply
AC 220 V / 50 Hz
Key Benefit
Non-invasive pipe scale conditioning
Application Scope

Basic electronic anti-scaling for HVAC closed loops where water contains negligible suspended solids.

02 · SGV-PW Series Electronic + Backwash Filtration

SGV-PW Backwash Electronic Descaling Device

Combines an electronic scale-conditioning field with a stainless-steel filter screen and automatic backwashing. Allows suspended debris removal without interrupting main water circulation.

Working Pressure
≤1.6 MPa (Flanged)
Medium Temperature
-20 – 120 °C
Pressure Loss
0.005 – 0.01 MPa
Wetted Materials
Carbon Steel Body / SS Screen
Application Scope

Circulating water systems where both suspended particulates and mineral scale must be addressed in one inline unit.

03 · ZPG Series Automatic Backwash Filtration · 3,500–130 μm

ZPG Automatic Backwash Filter

Dedicated mechanical filter for suspended solids removal. Differential-pressure triggered backwashing cleans the stainless screen automatically without requiring external electrical power according to standard source data.

Filtration Accuracy
3,500 – 130 μm Selectable
Working / Test Press
≤1.6 MPa / ≤2.4 MPa
Medium Temperature
-30 – 150 °C
Pressure Drop
0.005 – 0.01 MPa
Application Scope

Upstream protection for heat exchangers, chillers, and pumps against sand, weld slag, rust, and pipe debris.

04 · KGS Series Integrated Physical System · 0–85 °C

KGS Integrated Water Treatment System

Packaged circulating-water processing unit combining high-efficiency filtration, automatic sludge discharge, and physical electronic treatment in a single factory-built vessel.

Hardness Boundary
≤800 mg/L (as CaCO₃)
Water Temperature
0 – 85 °C
Flow Velocity
1 – 2.8 m/s
Power Consumption
50 – 1,500 W
Application Scope

Commercial and industrial central cooling/heating water loops requiring comprehensive solids, sludge, and scale conditioning.

05 · WHQC Series Full-Process Integrated · ≤50 °C

WHQC Physical Full-Process Integrated System

Integrates physical filtration, automated blowdown, self-cleaning cycles, and intelligent operating monitoring. Specifically bounded for low-to-medium temperature circulating systems.

Water Temperature
≤50 °C Standard
Hardness Limit
≤800 mg/L (as CaCO₃)
Automation Scope
Auto Blowdown + Self-Cleaning
Power Rating
50 – 1,500 W
Application Scope

Cooling-tower loops and chilled-water systems where automated blowdown control and intelligent monitoring are required.

06 · ZCPL Series Side-Stream Processing · 1–3% Flow

ZCPL Circulating Side-Stream Water Processor

Processes 1–3% of total circulating water flow through dedicated side-stream filtration and treatment. Available in Closed Type (chilled loops) and Open Type (cooling tower basins) with automatic backwashing.

Side-Stream Fraction
1 – 3% of Circulating Flow
Temperature Range
0 – 95 °C
Water Loss
0.2 – 1.0 m³/h (Backwash)
Power Input
AC 220 V / 380 V
Application Scope

Large hydronic loops and open cooling towers where installing full-flow filtration would be cost-prohibitive.

07 · EDLS Series Online Condenser Tube Cleaning

EDLS Condenser Rubber Ball Cleaning System

Injects specialized rubber cleaning balls into condenser cooling water to mechanically scrub inside tube surfaces continuously. Balls are separated and collected for repeated automatic recirculation under PLC control.

Cleaning Method
Mechanical Sponge Ball Circulation
Target Equipment
Shell-and-Tube Chillers / Condensers
Control System
PLC Automated Ball Injection/Recovery
Key Benefit
Maintains optimal approach ΔT online
Application Scope

Central chiller plants, power plant condensers, and industrial heat exchangers experiencing rapid tube-side fouling.

08 · KYJY Series Automated Chemical Dosing · 40–1,000 L

KYJY Fully Automatic Chemical Dosing System

Packaged chemical dosing skid including solution tank (40, 100, 200, 500, 1,000 L), electric mixer, metering pump, level sensor, safety relief valve, and automated control panel with remote feedback.

Tank Capacities
40, 100, 200, 500, 1,000 L
Pump Options
Diaphragm / Plunger Metering
Signals & Control
4–20 mA, Pulse, Flow Interlock
Media Compatibility
Inhibitors, Biocides, Acids, Bases
Application Scope

Cooling towers, boiler chemical conditioning, wastewater neutralization, and municipal water treatment.

03 / Equipment Routing

Water Treatment Family Comparison Matrix

Compare all eight YONGFAN integrated and side-stream water treatment families by primary function, operating boundary, and first selection input.
Product Family Primary Problem Solved Documented Operating Boundary First Input to Confirm
SGV Electronic Device Basic inline electronic scale conditioning Clean closed-water loops · 220 V Water analysis & pipe connection DN
SGV-PW Backwash Descaler Electronic treatment + inline screen backwash -20 to 120 °C · ≤1.6 MPa · 220 V Particulate load & drain availability
ZPG Backwash Filter Dedicated mechanical suspended solids removal 3,500–130 μm · -30 to 150 °C · ≤1.6 MPa Required filtration micron rating
KGS Integrated System Filtration, sludge discharge & physical treatment ≤800 mg/L hardness · 0–85 °C · ≤1.6 MPa Water analysis & filtration target
WHQC Full-Process System Integrated filtration, auto blowdown & monitoring ≤800 mg/L hardness · ≤50 °C · ≤1.6 MPa Water temperature & control scope
ZCPL Side-Stream Processor Continuous side-stream filtration (Closed/Open) 1–3% side stream · 0–95 °C · ≤800 mg/L hard Total circulating water flow (m³/h)
EDLS Ball Cleaning System Online mechanical scrubbing of condenser tubes Shell-and-tube chillers / condensers Condenser tube ID & water flow
KYJY Chemical Dosing Skid Precision automated chemical metering 40 / 100 / 200 / 500 / 1,000 L tanks Chemical type, dose rate & pressure
04 / Procurement Protocol

Information Required for Equipment Selection

Provide complete water test reports, operating temperature, pipe DN, available drain capacity, and control integration requirements.
STEP 01

Water Test Report

Hardness (mg/L CaCO₃), suspended solids (ppm), conductivity, pH, and chlorides.

STEP 02

Hydraulic & Thermal Duty

Total flow rate (m³/h), operating pressure (MPa), and fluid temperature range (°C).

STEP 03

Target Mechanism

Specify filtration micron rating, side-stream %, condenser tube ID, or chemical dosage.

STEP 04

Automation & Controls

Select automatic differential-pressure backwash, timer control, or BMS/PLC signals.

Engineering Handoff

Submit System Data for Water Treatment Equipment Sizing

YONGFAN application engineers will verify flow velocities, calculate side-stream turnover rates, match wetted metallurgy, and supply dimensioned skid layout drawings.

Water Analysis (Hardness / Solids)
Total Circulation Flow (m³/h)
Operating Temperature & Pressure
Filtration Micron Rating (130–3500 μm)
Condenser Tube Quantity & ID (EDLS)
Chemical Dosing Dosage & Tank Size
05 / Manufacturing Verification

Vessel Integrity & Component Calibration

Equipment undergoes pressure testing, automatic backwash verification, and dosing pump calibration before factory release.
Pressure QA

1.5× Hydrostatic Verification

All filter bodies, treatment vessels, and manifold headers undergo hydrostatic testing to 1.5× rated working pressure.

Filtration QA

Screen ΔP Cycle Checks

Stainless steel wedge-wire screens and automatic backwash valves are cycle-tested for full debris expulsion.

Dosing QA

Meter Flow Calibration

KYJY chemical metering pumps are calibrated against volumetric columns across 0–100% stroke capacity.

EDLS QA

Ball Recovery Verification

Condenser ball traps and injector valves are bench-tested for 100% ball recovery and zero bypass jamming.

Submittal Package: GA drawings, electrical schematics, and material test reports provided with quotations. Trade Terms: EXW, FOB, CIF, and DDP export logistics supported worldwide.
06 / Engineering Knowledge

Water Treatment Equipment FAQ

Direct engineering answers regarding filtration accuracy, side-stream sizing, condenser tube cleaning, and chemical dosing.

Which family should I use only for suspended solids?

Start with ZPG Automatic Backwash Filter. It provides a defined 3,500–130 μm mechanical filtration range without adding electronic treatment claims.

Which product combines filtration with electronic treatment?

SGV-PW combines an electronic treatment field with a stainless-steel filter screen and automatic backwashing in one inline vessel.

When should I choose KGS instead of WHQC?

Choose KGS where water temperature reaches up to 85 °C. WHQC is bounded at ≤50 °C and focuses on automated blowdown and monitoring.

Which product uses a side-stream instead of full-flow treatment?

ZCPL. It continuously processes approximately 1–3% of total circulating water flow through closed-loop or cooling-tower basin systems.

Which product physically cleans chiller condenser tubes?

EDLS Condenser Rubber Ball Cleaning System. It circulates sponge balls through condenser tubes and recovers them for continuous online cleaning.

Which family meters chemicals automatically?

KYJY Fully Automatic Chemical Dosing System, featuring 40 to 1,000 L solution tanks, mixers, and precision metering pumps.

Can physical devices replace cooling tower biocide programs?

No. Physical systems condition scale and remove solids, but cooling tower biological and Legionella control still requires a monitored chemical/biocide management program.

Do physical treatment devices remove dissolved calcium ions?

No. Physical systems modify mineral crystallization behavior. If true ion removal is required, select Water Softeners (RLC).

07 / Application Boundaries

Water Treatment Engineering Boundaries

Understanding process boundaries to avoid misapplication across filtration, physical conditioning, and chemical dosing.
Boundary 01 / Solids vs Scale

Match the Foulant

Do not specify electronic scale treaters for high suspended solids; install dedicated ZPG backwash filters.

Boundary 02 / True Softening

Not Ion Exchange

Physical devices do not reduce water hardness concentration. For measurable softened water, specify RLC Softeners.

Boundary 03 / Thermal Limits

WHQC ≤50 °C Limit

Do not install WHQC on hot water loops above 50 °C; select KGS (up to 85 °C) or ZPG (up to 150 °C).

Boundary 04 / Condenser Geometry

EDLS Compatibility

EDLS requires shell-and-tube heat exchangers with straight, unobstructed tubes capable of passing rubber cleaning balls.

08 / Engineering Handoff

Select the Right Water Treatment System for Your Plant

Send your system flow schematic, water analysis, operating temperatures, and fouling history. YONGFAN application engineers will configure the optimal filtration, conditioning, or dosing solution with complete submittal drawings.

ZPG Backwash: 130–3500 μm SGV-PW Backwash Descaler KGS (0–85 °C) · WHQC (≤50 °C) ZCPL Side-Stream (1–3%) EDLS Condenser Ball Cleaning KYJY Dosing Skids (40–1000 L)
YONGFAN automatic chemical dosing unit
Direct Application Engineering Support
Solids load calculations, side-stream turnover modeling & GA drawings.