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As a leading manufacturer from Tianjin, China, Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd. introduces our Fully Automatic Hydrochloric Acid Dosing System with PLC Control and Skid Mounted Plug-Play Design. This advanced dosing solution is engineered to deliver precise, reliable, and safe chemical injection for a wide range of industrial applications. With our extensive experience in the industry and a strong commitment to quality, we have designed this system to simplify installation, reduce operational downtime, and ensure consistent dosing accuracy. Whether for water treatment, chemical processing, or industrial cleaning, our system offers a turnkey solution that saves time and enhances productivity.
The core of this dosing system is its intelligent PLC control unit, which enables fully automatic operation with minimal manual intervention. The PLC monitors and adjusts dosing parameters in real time, ensuring exact quantities of hydrochloric acid are injected according to your process requirements. The system features a skid-mounted, plug-and-play design, meaning it arrives pre-assembled, pre-wired, and pre-tested. Installation simply requires connecting the inlet and outlet pipelines and power supply – no complex on-site assembly or programming is needed. This drastically reduces installation costs and time, allowing you to start operations quickly.
Key Features & Technical Specifications
Fully Automatic PLC Control: Equipped with a user-friendly HMI touch screen, the PLC provides intuitive control and monitoring. Parameters such as flow rate, dosing time, and alarm thresholds can be easily set and adjusted. The system supports remote monitoring and data logging via optional communication modules.
High-Precision Dosing: Uses a corrosion-resistant diaphragm metering pump with adjustable stroke length and frequency, achieving accuracy within ±1%. This ensures consistent chemical dosage, reducing waste and improving process stability.
Skid Mounted Compact Design: All components – including the chemical tank, metering pump, valves, instruments, and PLC panel – are mounted on a durable stainless steel or carbon steel skid. The compact footprint saves valuable floor space, and the pre-piped design minimizes leak points.
Plug-and-Play Installation: The system is fully factory-tested before delivery. You only need to connect the suction and discharge lines, power, and signal cables. This reduces installation time by up to 80% compared to traditional field-assembled systems.
Corrosion-Resistant Construction: Wetted parts in contact with hydrochloric acid are made of PP, PVC, PTFE, or other chemically resistant materials. This ensures long service life and safe handling of aggressive chemicals.
Safety Features: Includes low-level alarm, overpressure protection, leak detection, and emergency stop. The PLC automatically shuts down the system if any abnormal condition is detected, protecting both equipment and personnel.
| Parameter | Specification |
|---|---|
| Flow Range | 50 – 500 L/h (customizable) |
| Working Pressure | Up to 10 bar |
| Power Supply | 380V/50Hz, 3-phase (other voltages available) |
| PLC Control | Siemens or equivalent (customizable) |
| Tank Capacity | 200 – 2000 L (optional) |
| Material | PP/PVC or Carbon Steel Lined per request |
| Dimensions (L×W×H) | Varies by configuration (skid footprint ≈ 1.5m×1.2m) |
Our dosing system is widely used in industrial water treatment, cooling tower chemical injection, pH adjustment, metal pickling, boiler water treatment, and chemical manufacturing. The automatic control ensures that the acid dosage adapts to changing process conditions without operator intervention, improving efficiency and reducing chemical consumption. For example, in a wastewater neutralization application, the system can maintain a stable pH within ±0.1 units, meeting discharge standards consistently.
The skid-mounted plug-and-play design also simplifies maintenance. All components are easily accessible, and the modular construction allows quick replacement of pumps, valves, or sensors. The PLC system provides diagnostic messages and maintenance reminders, helping to prevent unexpected downtime. With proper care, the system operates reliably for many years, delivering a fast return on investment.
Why Choose ZLN?
Tianjin ZhuoLiNeng Technology Co., Ltd. has been a dedicated manufacturer of chemical dosing and feeding systems for over a decade. We hold certification, reflecting our commitment to quality management and continuous improvement. Our products are exported to markets across North America, South America, Europe, Asia, and Africa, earning trust from clients in diverse industries. Each dosing system undergoes rigorous factory testing, including a 24-hour simulated run, to ensure flawless performance before shipment.
We understand that every application has unique requirements. Therefore, we offer extensive customization options: different flow ranges, tank materials, pump types, PLC brands, and communication protocols (Modbus, Profibus, etc.). Our experienced engineering team works closely with clients to tailor the system to their exact needs. We also provide comprehensive after-sales support, including installation guidance, technical training, and spare parts availability. When you choose ZLN, you're not just buying equipment – you're gaining a reliable partner committed to your success.
Request a quote or contact us today to discuss your hydrochloric acid dosing requirements. Let our plug-and-play, fully automatic system bring efficiency, safety, and peace of mind to your operation.
Frequently Asked Questions (FAQ)
Q: Does the system require special skills to operate?
A: No. The PLC HMI is intuitive and menu-driven. We provide a user manual and optional on-site training. Most operators can learn basic operation in one day.Q: Can this dosing system handle high-concentration hydrochloric acid?
A: Yes. The wetted parts are made of materials resistant to concentrated HCl (up to 37%). We recommend specifying the exact concentration during ordering so we can select the appropriate materials.Q: What is the typical lead time?
A: For standard configurations, lead time is 15–25 working days. Customized systems may require 30–40 days depending on complexity.Q: Is the system compatible with remote monitoring?
A: Yes. The PLC can be equipped with an Ethernet or GSM module to enable remote access and SCADA integration. This is an optional feature available upon request.Q: How do you ensure safe operation of the dosing system?
A: The system includes multiple safety features: low-level alarm, overpressure protection, emergency stop, leak detection sensor, and automatic shutdown on fault. All electrical components are IP54 rated.Q: What warranty do you offer?
A: We provide a standard 12-month warranty from the shipment date against manufacturing defects. Extended warranty options are available.Q: Can the flow range be adjusted after installation?
A: Yes. The metering pump stroke length and frequency can be adjusted manually or via the PLC, allowing you to change the dosing rate within the pump's range (e.g., 10–100% of rated capacity).Q: Do you provide spare parts?
A: Yes. We recommend a list of critical spare parts (e.g., pump diaphragms, check valves, seals) and can supply them promptly. Many standard parts are also locally available.
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