The CZX Leak-Free Magnetic Self-Priming Pump is a state-of-the-art, high-efficiency pump designed for industrial, chemical, and municipal fluid transfer applications. Featuring magnetic drive technology, this pump eliminates the need for mechanical seals, providing hermetically sealed, leak-free operation. Its self-priming capability allows the pump to handle low suction levels, intermittent flow, and challenging startup conditions with ease.
Manufactured from high-grade stainless steel, fluoropolymer-lined materials, or other corrosion-resistant alloys, the CZX pump ensures long-term durability and chemical compatibility. The magnetic drive system allows for complete containment of hazardous or toxic liquids, making it a safe and environmentally friendly solution for industries that require strict leakage control and operational reliability.
Widely used in chemical processing, pharmaceutical production, food and beverage processing, municipal water supply, wastewater treatment, and industrial fluid handling, the CZX Magnetic Self-Priming Pump is suitable for both continuous and intermittent operations. Optional features include variable frequency drive (VFD) compatibility, thermal sensors, automated priming systems, and integration with PLC/SCADA control systems, offering maximum flexibility, automation, and precision.

Magnetic Drive Leak-Free Technology
Eliminates conventional shaft seals to prevent leakage and environmental hazards.
Ideal for handling toxic, flammable, or corrosive liquids.
Self-Priming Capability
Capable of priming itself without additional priming devices, even with low fluid levels.
Enables reliable operation in variable suction conditions.
Robust and Corrosion-Resistant Construction
Pump casing and impellers made from stainless steel, fluoropolymer-lined alloys, or corrosion-resistant materials.
Resistant to abrasion, corrosion, and chemical attack for extended service life.
Wide Flow and Pressure Range
Flow rates: 1–1200 m3/h, depending on model.
Maximum head: up to 90 meters, suitable for moderate to high-pressure applications.
Automation and VFD Compatibility
Supports variable frequency drives for precise flow and pressure control.
Compatible with PLC and SCADA systems for fully automated operations.
Leak-Free Operation
Hermetically sealed magnetic coupling ensures zero leakage, even with aggressive or toxic fluids.
Protects both operators and the environment.
Thermal Protection
Integrated thermal sensors prevent motor overheating during high-load or high-temperature operations.
Allows continuous, safe operation under demanding conditions.
Low Maintenance
Fewer moving parts compared to traditional pumps.
Modular design enables easy inspection, cleaning, and replacement of components.
Versatile Applications
Ideal for chemical, pharmaceutical, food and beverage, municipal water, and industrial fluid transfer.
| Parameter | Specification Range |
Pump Type | Magnetic Self-Priming Pump |
Flow Rate | 1 – 1200 m3/h |
Head | Up to 90 meters |
Pressure | Up to 16 bar depending on configuration |
Operating Temperature | -20°C to +120°C depending on fluid and materials |
Material of Construction | Stainless steel, fluoropolymer-lined alloys, corrosion-resistant metals |
Impeller Type | Closed or open magnetic drive impeller |
Shaft Material | Stainless steel or corrosion-resistant alloy |
Seal Type | Hermetically sealed magnetic coupling |
Motor Type | TEFC or submersible electric motor |
Cable Type | Chemical-resistant insulated cable |
Drive Options | Electric motor, VFD compatible |
Installation Type | Horizontal self-priming |
Noise Level | <75 dB(A) depending on model |
Efficiently handles corrosive chemicals, acids, alkalis, and hazardous liquids.
Suitable for chemical processing, transfer, storage tanks, and reaction systems.
Transfers pharmaceutical liquids, sterile solutions, and sensitive compounds.
Supports CIP (Clean-In-Place) and sanitary systems.
Ideal for food-grade liquids, syrups, oils, and beverages.
Hermetic design ensures leak-free, contamination-free operation.
Pumps water, wastewater, reclaimed water, and municipal treatment fluids efficiently.
Reduces leakage and environmental hazards.
Used in process water, cooling liquids, chemical circulation, and industrial fluids.
Provides reliable, stable, and continuous flow.
Safely pumps flammable, toxic, or environmentally sensitive liquids.
Magnetic drive provides zero leakage containment.
Supports small-scale chemical, pharmaceutical, and food processing applications.
Easily integrated with automation, monitoring, and control systems.
Self-priming function allows operation even in challenging suction conditions.
Suitable for remote and unmanned pumping stations.
Verify pump installation, piping connections, and electrical supply.
Inspect magnetic coupling, impeller, motor insulation, and bearings.
Confirm fluid compatibility with pump materials.
Ensure suction line has sufficient fluid for initial priming.
Start motor at low voltage and gradually increase to operational voltage.
Monitor flow, pressure, vibration, and temperature.
Adjust VFD or automation controls to maintain desired flow and pressure.
Operate within rated flow, pressure, and temperature limits.
Regularly inspect magnetic drive, bearings, and pump casing.
Monitor performance and vibration for early detection of wear or misalignment.
Reduce flow gradually before stopping the motor.
Disconnect power and drain fluids from the pump if required.
Clean the pump and inspect for damage before storage or maintenance.
Routine Inspection
Check vibration, noise, and magnetic drive alignment.
Inspect impeller, casing, and bearings for wear.
Magnetic Coupling Maintenance
Inspect for wear, corrosion, or misalignment.
Replace damaged components promptly.
Motor Maintenance
Monitor insulation resistance, temperature, and bearing performance.
Lubricate bearings as required for motor type.
Seal Maintenance
Hermetically sealed magnetic drive reduces maintenance needs.
Periodically inspect for misalignment or magnetic coupling wear.
Cable and Electrical Maintenance
Inspect power cables and connectors.
Ensure grounding and insulation integrity.
Scheduled Overhaul
Recommended every 12–18 months depending on fluid type and operational hours.
Inspect all internal components and replace worn or damaged parts.
| Problem | Possible Cause | Solution |
Pump fails to self-prime | Air in suction line, low fluid | Check suction line, fill pump with fluid |
Flow rate below specification | Impeller wear or blockage | Clean or replace impeller |
Excessive vibration or noise | Misalignment or bearing wear | Check alignment, replace bearings |
Magnetic coupling slippage | Overload or misalignment | Adjust alignment, reduce load |
Motor overheating | Overload or poor cooling | Check motor rating and thermal protection |
Pump leakage | Rare, check magnetic coupling | Inspect magnetic drive and alignment |
Corrosion or erosion | Fluid incompatibility | Verify material compatibility, clean pump |
Leak-Free Operation – Hermetically sealed magnetic drive ensures zero leakage.
Self-Priming Capability – Handles low suction levels and challenging startup conditions.
Corrosion and Chemical Resistance – High-quality materials withstand harsh liquids.
Energy Efficiency – Optimized hydraulics reduce energy consumption.
Automation Ready – Compatible with VFD, PLC, and SCADA systems.
Low Maintenance – Minimal moving parts reduce downtime.
Versatile Applications – Suitable for chemical, pharmaceutical, food, municipal, and industrial fluids.
Certified Quality – ISO, CE, and API certified for safety and performance.
The CZX Magnetic Self-Priming Pump is a robust, leak-free, and high-efficiency pump solution suitable for industrial, chemical, pharmaceutical, municipal, and food-grade fluid handling applications. Its magnetic drive, self-priming capability, corrosion-resistant construction, and automation readiness make it ideal for continuous, safe, and reliable fluid transfer operations.
Copyright ? Jiangsu Longjie Pump Manufacturing Co., Ltd.