1. Product introduction
The main components of DJD series mechanical diaphragm metering pump (GB diaphragm metering pump) are made of precision casting and CNC machining. According to the design of liquid end structure, the pump shall not leak during operation. The driving parts are made of solid materials and durable. The overcurrent components are made of PVC/PTFE/304/316 and other materials.
2. Product pictures
3. Scope of application
DJD series mechanical diaphragm metering pump (GB diaphragm metering pump) is widely used in petroleum, chemical industry, metallurgy, mining, shipbuilding, light industry, power, printing and dyeing, environmental protection, water treatment, food and beverage industry, military industry, etc
4. Product Features
(1) Safe operation, mechanically driven diaphragm.
(2) Good sealing, no leakage, simple and safe assembly and maintenance.
(3) It can transport high viscosity medium, corrosive liquid and dangerous chemicals.
(4) Flow regulation can adjust stroke length or motor frequency.
(5) The diaphragm is made of multi-layer composite structure. The first layer is super tough Teflon acid resistant film, the second layer is EPDM elastic rubber, the third layer is 3.0mm stainless steel 304 supporting iron core, the fourth layer is reinforced nylon fiber, and the fifth layer is completely covered with EPDM elastic rubber, which can effectively raise the service life of the diaphragm.
5. Specifications
Note: 1. If the parameters are different from those in the table during the model selection process, our factory can improve the model selection through technology.
DJ-D mechanical diaphragm metering pump: Energy Efficiency, After-Sales, Environmental Performance, and Installation Guide
The DJ-D Mechanical Diaphragm Metering Pump is a high-precision, industrial-grade pump designed for accurate and reliable liquid dosing in chemical, water treatment, and manufacturing applications. Its mechanically driven diaphragm ensures smooth, pulsation-free flow, adjustable discharge rates, and stable performance in demanding environments. This guide provides detailed information on energy efficiency, after-sales support, environmental performance, and installation guidance, making it a valuable reference for engineers, operators, and procurement professionals.
The DJ-D pump is engineered for precision dosing of corrosive, viscous, or high-purity liquids, offering durability, flexibility, and reliable performance.
Mechanical Diaphragm Drive: Provides precise, pulsation-free volumetric dosing
Durable Construction: Resistant to corrosion, high pressure, and wear
Adjustable Stroke and Flow Rate: Customizable for specific operational needs
Compact Design: Easy integration into existing production lines
Low Maintenance: Modular components allow quick servicing and part replacement
Chemical Processing: Accurate dosing of acids, alkalis, and reactive chemicals
Water Treatment: Disinfectant dosing, pH adjustment, and chemical injection
Industrial Manufacturing: Lubricants, resins, adhesives, and coatings
Food & Pharmaceutical: Hygienic liquid handling in cleanroom environments
The DJ-D mechanical diaphragm metering pump is designed for optimized energy consumption while maintaining high accuracy and performance.
Mechanical Drive Efficiency: Reduces energy losses compared to traditional hydraulic systems.
Adjustable Stroke and Speed: Allows operators to fine-tune flow rate without excessive power usage.
Low Friction Components: Minimizes energy dissipation in moving parts.
Compact Motor Integration: Optimized for lower electricity consumption and smaller footprint.
Lower operational costs for industrial and chemical facilities
Reduced carbon footprint and environmental impact
Consistent performance without overloading electrical systems
Reliable after-sales support ensures minimal downtime and consistent pump performance.
Technical Support: Expert guidance on installation, operation, and maintenance
Spare Parts Availability: Genuine replacement diaphragms, valves, and seals
Maintenance Assistance: On-site or remote support for troubleshooting and repair
Warranty Coverage: Standard warranties covering manufacturing defects and performance issues
| Maintenance Task | Frequency | Purpose |
|---|---|---|
| Visual Inspection | Weekly | Detect leaks, wear, or abnormal vibration |
| Diaphragm & Seal Replacement | Every 3–6 months | Ensure proper sealing and prevent leakage |
| Lubrication (if applicable) | Every 3–6 months | Reduce friction and wear on mechanical components |
| Performance Testing | Annually | Verify flow accuracy and operational efficiency |
The DJ-D pump is designed with eco-friendly materials and operational efficiency to minimize environmental impact.
Corrosion-Resistant Materials: Long-lasting components reduce waste and replacements
Energy-Efficient Operation: Lower electricity consumption reduces greenhouse gas emissions
Leak Prevention: Robust sealing mechanisms minimize chemical leaks and environmental contamination
Compliance with Regulations: Designed to meet local and international environmental safety standards
Reduced chemical waste and contamination risk
Lower energy costs and greenhouse emissions
Support for sustainable industrial processes
Proper installation ensures safe, efficient, and reliable operation.
Verify that the pump model matches your operational requirements.
Ensure the installation area is clean, dry, and well-ventilated.
Inspect the pump for any shipping damage.
Prepare all necessary piping, valves, and fittings.
Mounting: Secure the pump on a level, rigid base to minimize vibration.
Piping Connections: Connect inlet and outlet pipes using proper fittings; install valves for control and isolation.
Alignment: Ensure the mechanical drive is properly aligned with the pump shaft.
Priming: Fill the pump with compatible liquid before initial operation.
Leak Check: Run the pump briefly to inspect all joints and connections for leaks.
| Task | Recommended Action |
|---|---|
| Base Mounting | Level, rigid foundation to reduce vibration |
| Piping | Correct size, clean, and aligned to avoid flow issues |
| Drive Alignment | Check mechanical drive alignment before operation |
| Priming | Fill pump to prevent dry running and diaphragm damage |
| Leak Test | Inspect all connections for leaks before full operation |
Proper operation ensures accuracy, safety, and efficiency.
Confirm that the pump is securely mounted and aligned.
Verify that suction and discharge valves are positioned correctly.
Ensure sufficient liquid supply to avoid dry running.
Inspect electrical connections if motor-driven.
Open suction valve and partially open discharge valve.
Start the mechanical drive slowly.
Adjust stroke and flow rate to desired operational settings.
Monitor flow and pressure for stable operation.
Close the discharge valve slowly to prevent pressure spikes.
Power off the mechanical drive.
Flush the pump with compatible liquid to remove residual chemicals.
Document operational parameters for maintenance records.
The DJ-D Mechanical Diaphragm Metering Pump combines precision, energy efficiency, and environmental performance with robust after-sales support and straightforward installation. It is an ideal solution for chemical processing, water treatment, industrial manufacturing, and pharmaceutical applications, delivering accurate, pulsation-free, and eco-friendly fluid metering.
By adhering to recommended installation procedures, safety precautions, and maintenance schedules, users can ensure long service life, consistent performance, and minimal downtime, making the DJ-D pump a reliable choice for modern industrial fluid handling systems.
Phone：+86 15868545868/+8618968868555
whatsapp：+86 15868545868/+8618968868555
Email：haiwan@haiwanpump.cn
Add：Meiao Street, Qiaoxia Town, Yongjia County Wenzhou City, Zhejiang, China
Copyright ? 2025 Zhejiang Haiwan Pump Industry Co., Ltd.
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