The KD Series is a heavy-duty mechanical diaphragm metering pump designed for high-flow, high-pressure industrial chemical dosing. Featuring a high-strength PTFE diaphragm and dual-diaphragm rupture detection system, it ensures safe and reliable operation when handling corrosive, hazardous, and high-viscosity fluids.
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 | Stroke Speed (spm) | Power (KW) | Diaphragm (mm) | Weight (KG) |
|---|---|---|---|---|---|---|---|
| KD-25/1.2 | 25 | 1.2 | DN15 | 72 | 0.37 | 65 | 14 |
| KD-50/1.2 | 50 | 1.2 | 144 | 65 | |||
| KD-85/1.0 | 85 | 1.0 | 72 | 84 | |||
| KD-120/0.7 | 120 | 0.7 | 72 | 114 | |||
| KD-170/0.7 | 170 | 0.7 | 144 | 0.55 | 114 | ||
| KD-240/0.7 | 240 | 0.7 | 144 | 114 | |||
| KD-330/0.5 | 330 | 0.5 | 144 | 114 | |||
| KD-420/0.5 | 420 | 0.5 | DN25 | 144 | 114 | ||
| KD-500/0.5 | 500 | 0.5 | 180 | 114 |
| Flow Rate | 25–500 L/h |
| Max Pressure | 1.2 MPa |
| Power | 0.37 / 0.55 KW |
| Stroke Speed | 72–180 spm |
| Diaphragm Size | 65 / 84 / 114 mm |
| Weight | 14 KG |
| Port Connection | DN15 / DN25 |
| Wetted Materials | PVC / PVDF / PTFE / 304 / 316 SS |
| Gearbox Material | High-Strength Aluminum Alloy |
High-strength PTFE diaphragm with excellent corrosion resistance and long service life, suitable for hazardous and corrosive fluids.
Dual-diaphragm design with rupture detection for safe handling of flammable, explosive, toxic, radioactive, and highly corrosive liquids.
Precision check valve structure with accurate metering, compact design, excellent sealing, long life, and high interchangeability.
Supports VFD motor with 4–20mA signal for flow adjustment; compatible with digital controller or stroke controller for external automatic control.
Motor mounted vertically above the gearbox to effectively prevent lubricant leakage and improve transmission reliability.
Widely used in petroleum, chemical, water treatment, food, pharmaceutical, power, environmental protection, mining, textile, papermaking, defense, and research institutions.
The KD Series Mechanical Diaphragm Metering Pump is primarily designed for precise chemical dosing in various industrial applications. It is ideal for water treatment, chemical processing, food and beverage production, and any other process that requires accurate and reliable liquid metering. This pump series is known for its durability and ability to handle a wide range of chemicals, including corrosive and abrasive liquids.
The KD Series Mechanical Diaphragm Metering Pump ensures accurate dosing through its positive displacement design, which delivers a fixed volume of liquid with each stroke. It features a mechanical diaphragm that is actuated by a piston, providing consistent and repeatable performance. The pump's stroke length and frequency can be precisely adjusted, allowing for accurate dosing rates from 0 to 100% of capacity. Additionally, the diaphragm has a fail-safe design to prevent over-stressing and ensure reliability over time.
Yes, the KD Series Mechanical Diaphragm Metering Pump is capable of handling viscous fluids. Its robust design and the use of a mechanical diaphragm allow it to effectively dose liquids with higher viscosities. However, for optimal performance, it is recommended to consult the pump's technical specifications and ensure that the viscosity of the liquid falls within the specified range. Adjustments to the flow rates and stroke lengths may be necessary to accommodate more viscous fluids.
The key maintenance requirements for the KD Series Mechanical Diaphragm Metering Pump include regular inspection and replacement of the diaphragm and check valves, lubrication of the drive mechanism, and cleaning of the liquid end to prevent clogging. It is also important to check the pump's seals and gaskets periodically to ensure they are in good condition. Adhering to the manufacturer's recommended maintenance schedule and using the correct replacement parts will help maintain the pump's efficiency and extend its operational life.
Yes, the KD Series Mechanical Diaphragm Metering Pump is suitable for continuous operation. These pumps are built to withstand demanding industrial environments and are designed to operate reliably for extended periods. They feature robust construction, durable materials, and efficient operation, making them well-suited for applications that require continuous dosing without interruptions. Regular maintenance and adherence to operational guidelines will further ensure the pump's longevity and performance during continuous use.
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