Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 1

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 2

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 3

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 4

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 5

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H 6

Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H

The Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H is a compact, automated dosing unit that delivers up to 500 L/h of precise chemical feed using a durable diaphragm pumping mechanism. It provides micro-dosing accuracy, programmable flow control, chemical-resistant construction and a leak‑proof design for safe, continuous operation. Selling points that impress: high flow with fine control, low maintenance and long diaphragm life, easy installation and intuitive automation, energy-efficient performance and strong corrosion/safety protection for industrial and water‑treatment applications.

brand name:

QILEE

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(sets):50(days),>1(sets):To be negotiated(days)

Place of Origin:

China

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size

2000*1000*1700

Suitable for medicament

Electronic control

0,1

Maximum number of instruments

Pump type

Diaphragm pump

Pump qty

4sets

Maximum flow rate

1000LPH

Processing Type

Filtration

Power(W)

1 kW

Product name

Micro Dosing System

Voltage

220 V, 380 V

weight (kg)

100

productivity

500L/Hour

warranty

1 Year

place of origin

Shanghai, China

core components

Motor

machinery test report

Provided

video outgoing-inspection

Provided

Precise Reliable Compact Dosing

This Automatic Chemical Micro Dosing System with a 500L/H diaphragm pump provides precise, automated dosing of acids, alkalis, PAC, PAM and nutrients to improve coagulation, sludge dewatering and regulatory compliance while reducing chemical waste. Housed in a compact cabinet-style skid with high-quality diaphragm metering pumps, safety/back-pressure valves, filters, diaphragm pressure gauge and cleaning pipelines, and shipped in standard export cartons, it delivers stable operation and easy maintenance. The modular QWDS Polymer dosing system connects to DCS and online sensors (pH, residual chlorine, DO, SS) for automatic pump switching and dosage matching to flow, offering scalable, reliable performance and lower operating costs.

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The QWDS Polymer dosing system with a diaphragm pump rated at 500 L/H provides precise micro‑dosing through corrosion‑resistant diaphragm metering units and an integrated safety package including back‑pressure and relief valves, filters and cleaning pipelines. Built for wastewater tasks such as coagulation, pH adjustment and sludge dewatering, it links to DCS/PLC and online sensors (pH, residual chlorine, DO, SS, sludge concentration) to automatically match dosage to flow and concentration, lowering chemical use and operator workload. A modular, multi‑pump architecture with automatic pump switching, selectable screw-or-diaphragm pumps and standard pressure gauges delivers scalable, accurate, low‑maintenance metering for PAC, PAM, acids/alkalis, carbon sources and demulsifiers.

Precision Automatic Chemical Dosing

QWDS Polymer dosing system is an automatic chemical micro dosing solution equipped with diaphragm metering pumps up to 500 L/H, tailored for coagulation, pH regulation and sludge dewatering in wastewater treatment. It enables automatic dosing of reagents such as PAC, PAM, acids, alkalis and demulsifiers with online monitoring of pH, residual chlorine, DO and suspended solids, and includes safety components like back-pressure and safety valves, filters, diaphragm pressure gauges and cleaning pipelines. With automatic pump switching, selection of imported screw or diaphragm pumps based on chemical properties, and seamless DCS integration, the system offers scalable, reliable and precise micro-dosing for industrial water processes.

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Precise, Reliable, Chemical-Resistant Dosing

The QWDS Polymer dosing system pairs precision engineering with corrosion-resistant materials and a durable diaphragm pump to deliver automatic chemical micro-dosing at up to 500 L/h for reliable performance in water treatment and industrial processes. Equipped with digital metering controls, adjustable flow rates, self-priming capability, leak detection and PLC connectivity, it ensures accurate, repeatable dosing and easy integration into existing automation. Its compact modular design, energy-efficient motor, low-maintenance seals and onboard calibration memory minimize chemical waste, simplify installation and upkeep, and provide long-term operational safety and cost savings.

Material introduction

The QWDS Polymer dosing system combines corrosion-resistant stainless steel (304/316) frames with chemical-grade wetted parts—diaphragms in PTFE, EPDM or Viton and PVDF/PTFE-coated pump housings—to ensure broad compatibility with acids, alkalis and polymer flocculants. Solution tanks, dosing lines and valves are typically made from HDPE, PVC, polypropylene or PVDF with PTFE-lined seals and cartridge filters to resist corrosion and simplify maintenance. Robust anti-corrosion finishes, replaceable seals and modular pump wetted parts extend service life and ensure reliable automatic micro dosing for PAC, PAM and other wastewater treatment reagents while supporting on-site DCS integration.

◎ Aggressive Chemistry Rated

◎ General Flocculant Compatible

◎ Corrosion Resistant Durable

FAQ

What is the Automatic Chemical Micro Dosing System Diaphragm Pump 500L/H typically used for?

This pump is used for controlled addition of chemicals in processes that require precise, repeatable dosing. Common applications include municipal and industrial water treatment (pH correction, coagulants, flocculants), cooling tower and boiler water treatment, wastewater treatment, swimming pool disinfection, chemical feed in process plants, and agricultural fertigation or dosing of additives.

How do I install and set up the pump for automatic dosing?

Mount the unit on a stable, level surface in a clean, ventilated area away from direct sunlight and extreme temperatures. Fit suction tubing with a foot valve/strainer and ensure inlet lines are airtight; install discharge lines with appropriate check valves and back-pressure if required. Connect electrical power and the controller (timer, PLC, or sensor such as pH/ORP/flow), prime the suction line per the manual, run a dry test then a wet test at low flow, and verify no leaks or airlocks before normal operation.

Which chemicals are compatible with this diaphragm pump and what materials should I verify?

Compatibility depends on the wetted materials of the specific pump model (common options: PTFE, PVDF, PP, stainless steel 316, and elastomers like EPDM or Viton). The pump handles acids, alkalis, biocides, coagulants and many solvents, but always check the manufacturer’s chemical compatibility chart and the chemical’s MSDS. For highly aggressive or solvent-based chemicals, choose appropriate wetted parts and seals; if unsure, consult the supplier.

How do I calibrate and adjust the pump to achieve accurate micro dosing?

Calibrate by measuring the actual dispensed volume over a fixed time (collect output for a set period) and compare to the target. Adjust the pump’s control parameters (stroke length, stroke frequency, or electronic setpoint) until the measured rate matches the desired flow. Use a flow meter or inline totaliser for continuous verification and perform calibration after install, after maintenance, and periodically (e.g., monthly) depending on process criticality.

What routine maintenance and common troubleshooting steps should I follow?

Routine maintenance includes regular inspection of diaphragms and valves for wear, cleaning or replacing suction strainers/filters, checking tubing and connections for leaks or hardening, and verifying controller/sensor operation. Typical troubleshooting: no flow — check priming, suction lift, clogged strainer or blocked valves; pulsation — inspect valves/air in system or add dampener; inaccurate dosing — recalibrate, inspect wear parts. Replace diaphragms and valve seats per the manufacturer’s intervals or sooner if signs of wear appear.

What safety and environmental precautions are recommended when operating the dosing system?

Always use appropriate PPE (gloves, goggles, apron) when handling chemicals and follow the chemical supplier’s safety instructions. Install secondary containment and drip trays, provide proper ventilation, and fit backflow prevention to protect the process and water supply. Implement emergency shutdown procedures and clearly label supply lines; store chemicals securely and dispose of residues and used parts according to local regulations.

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Stable equipment

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