The DJL Series is a mechanically driven diaphragm metering pump powered by an induction motor. Designed for safe, leak-free chemical dosing with high flow capacity up to 200 L/h. It handles high-viscosity media, corrosive liquids, and hazardous chemicals for demanding industrial environments.
Widely used in petroleum, chemical, oil refining, power generation, food processing, environmental protection, mining, water treatment, textile, plastic foaming, papermaking, pharmaceutical, defense, and scientific research institutions.
| Model | Flow Rate (L/h) | Pressure (MPa) | Port Size (mm) | Stroke Speed (spm) | Power (W) | Diaphragm (mm) | Weight (KG) |
|---|---|---|---|---|---|---|---|
| DJL-6/1 | 6 | 1.0 | φ10×16 PVC Corrugated Tube | 54 | 60W / 90W | 65 | 7.3 |
| DJL-12/1 | 12 | 1.0 | 67 | ||||
| DJL-25/1 | 25 | 1.0 | 108 | ||||
| DJL-32/1 | 32 | 1.0 | 135 | ||||
| DJL-50/1 | 50 | 1.0 | 67 | ||||
| DJL-60/1 | 60 | 1.0 | 90 |
| Model | Flow Rate (L/h) | Pressure (MPa) | Port Size (mm) | Stroke Speed (spm) | Power (W) | Diaphragm (mm) | Weight (KG) |
|---|---|---|---|---|---|---|---|
| DJL-80/0.5 | 80 | 0.5 | DN15 PVC Corrugated Tube | 108 | 60W / 90W Induction Motor 1P 220V / 3P 380V | 84 | 8.4 |
| DJL-90/0.5 | 90 | 0.5 | 135 | ||||
| DJL-100/0.5 | 100 | 0.5 | 135 | ||||
| DJL-120/0.5 | 120 | 0.5 | 90 | ||||
| DJL-150/0.4 | 150 | 0.4 | 180 | ||||
| DJL-200/0.3 | 200 | 0.3 | 180 |
| Flow Rate | 6–200 L/h |
| Max Pressure | 1.0 MPa |
| Power | 60W / 90W |
| Motor Type | Induction Motor |
| Voltage | Single-phase 220V / Three-phase 380V |
| Diaphragm Size | 65 / 84 mm |
| Weight | 7.3 / 8.4 KG |
| Wetted Materials | PVC / PVDF / PTFE / 304 / 316 SS |
Mechanically driven diaphragm ensures safe and reliable operation.
Excellent sealing performance with easy assembly and maintenance.
Capable of transferring high-viscosity, corrosive, and hazardous chemical fluids.
Flow adjustable via stroke length or motor frequency for precise dosing control.
5-layer structure: Teflon acid-resistant film, EPDM rubber, SUS304 core, reinforced nylon fiber, and EPDM outer coating for extended service life.
Wetted parts available in PVC, PVDF, PTFE, 304/316 SS, with custom materials for special requirements.
The DJL Series Mechanical Diaphragm Metering Pump is primarily used for accurately dosing chemicals in various industrial and municipal water treatment applications. It is suitable for applications requiring precision, reliability, and robust performance in processes such as pH adjustment, coagulation, disinfection, and corrosion inhibition.
The DJL Series Mechanical Diaphragm Metering Pump ensures accurate chemical dosing through its precise stroke length adjustment and consistent volumetric delivery. The mechanical diaphragm design provides a positive displacement action, which guarantees a fixed volume of chemical is dispensed with each pump stroke, making it ideal for maintaining tight control over chemical addition in critical processes.
Key maintenance requirements for the DJL Series Mechanical Diaphragm Metering Pump include regular inspection of the diaphragm for wear or damage, lubrication of moving parts, and checking the pump's inlet and outlet valves for any blockages or leaks. Additionally, it is important to ensure the chemical resistance of the pump components by using appropriate materials for the specific chemicals being dosed, and to follow the manufacturer's guidelines for recommended maintenance intervals.
Yes, the DJL Series Mechanical Diaphragm Metering Pump is designed to handle aggressive chemicals. It features a variety of wetted material options, including stainless steel, PTFE, and PVDF, which provide excellent resistance to corrosive and abrasive chemicals. Additionally, the pump can be configured with different diaphragm materials to suit the specific chemical compatibility requirements of your application.
The DJL Series Mechanical Diaphragm Metering Pump includes several safety features to ensure safe operation. These features typically include a diaphragm rupture detection system to prevent chemical leaks, a built-in bypass valve to protect against over-pressurization, and a manual flow adjustment mechanism for precise control. The pump is also designed with easy access to critical components for maintenance and inspection, helping to minimize downtime and ensure reliable performance.
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