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Metering pumps and chemical dosing systems supplied by WEILAN

Precision Water
Treatment
Solutions

Metering pumps, water quality analyzers and chemical dosing systems supplied for municipal, industrial and commercial water treatment.

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500+
Projects Delivered
50+
Countries Served
20
Years Experience

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What we supply

Our Core Products

0.2–41510 L/h

Metering Pumps

Solenoid, motor-diaphragm, hydraulic-diaphragm and plunger metering pumps for precise chemical dosing.

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pH · turbidity · DO · COD · Cl₂ · NH₃

Water Quality Analyzers

Online real-time monitoring instruments for pH, turbidity, dissolved oxygen, COD, chlorine, ammonia nitrogen and more parameters.

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skid · PLC · 50–5000 L

Chemical Dosing Systems

Complete skid-mounted and integrated chemical feeding systems for municipal water, industrial wastewater and pool treatment.

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Popular Products

Our advantages

Why Choose WEILAN

Custom Solutions

Engineering team designs bespoke systems tailored to your process requirements, flow rates, chemical compatibility and site conditions.

Global Shipping

Products exported to 50+ countries. Experienced in international logistics with DDP, FOB and CIF terms.

24/7 Tech Support

Dedicated after-sales team provides installation guidance, commissioning support and remote diagnostics. Spare parts dispatched within 24 hours.

How we work

From inquiry to shipment

  1. 01

    Inquiry

    Duty, medium and certificates. No prices on the site — engineering replies within one business day.

  2. 02

    Engineering

    Window match on flow and pressure, wet-end and control options. Shortlist, not an offer.

  3. 03

    Run test

    Any run test is the maker's. We do not publish a test duration or a pass rate.

  4. 04

    Shipment

    FOB, CIF or DDP. Lead time only on the quote. Stocked spares dispatch within 24 hours.

Where we serve

Application Scenarios

Municipal Water Treatment

Municipal Water Treatment

Precise chlorine and chemical dosing for city drinking water plants serving millions of residents.

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Industrial Wastewater

Industrial Wastewater

Complete chemical dosing and pH correction systems for factory effluent treatment to meet discharge standards.

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Swimming Pool Sanitation

Swimming Pool Sanitation

Automated chlorine and pH control dosing systems maintaining perfect water balance for commercial pools and aquatic centers.

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Seawater Desalination

Seawater Desalination

High-pressure antiscalant and acid dosing for seawater RO. Hydraulic and motor diaphragm pumps hold injection pressure on the feed line.

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Food & Beverage

Food & Beverage

Hygienic chemical feed for beverage and process plants. FDA-aligned wet-end options on request.

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Power Generation

Power Generation

Cooling-water scale inhibitor, biocide and corrosion-control dosing on combined-cycle plants.

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Where we ship

Export markets

CIS & Russia

RU · KZ · UZ · BY

Russian-language engineering and documentation. EAC is arranged per order, not claimed as a held mark.

Middle East

SA · AE · OM · QA

Municipal networks, seawater RO antiscalant and commercial pool packages.

Southeast Asia

VN · ID · TH · MY

Industrial WWTP, food plants and chemical dosing duty.

Africa

EG · NG · KE · ZA

Metering-pump packages for remote and emergency chemical feed.

Europe

DE · AT · CH · PL

CE-marked models. DACH service partner for commissioning and spares.

Americas

US · MX · BR · CL

Inquiry catalog only — no published prices.

Latest updates

News & Insights

EC Evodose Metering Pump with RS485
New ProductJul 15, 2026

EC Evodose Metering Pump with RS485

Stepper-driven Evodose pump with RS485. Adjustment 1–100%, accuracy ±1%. PTFE diaphragm. Supply 100–240 V 50/60 Hz or DC 24 V.

Ready to Optimize Your Water Treatment Process?

Send the chemical, flow and pressure. We match a catalog card. Prices are only on the quote.

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