The WFB Automatic Self-Priming Pump is a high-performance, fully automatic pump engineered for industrial, chemical, municipal, and process fluid applications. Combining self-priming technology with automatic priming mechanisms, this pump provides uninterrupted, reliable operation even in challenging suction conditions. It is particularly suited for hazardous, corrosive, viscous, or abrasive liquids, ensuring efficient fluid transfer without manual intervention.
The WFB pump incorporates advanced hydraulic design with robust materials of construction, including stainless steel, corrosion-resistant alloys, and fluoropolymer linings. Its automatic priming feature eliminates the need for auxiliary priming devices, making it ideal for continuous operations in chemical plants, wastewater treatment, industrial fluid transfer, and municipal water systems.
This pump is widely used in chemical processing, food and beverage industries, pharmaceutical production, water and wastewater treatment, and industrial fluid circulation. Optional features include VFD (variable frequency drive) compatibility, PLC/SCADA integration, thermal sensors, and automation-ready configurations, enhancing precision, safety, and operational efficiency.

Automatic Self-Priming Functionality
Automatically primes itself without manual intervention or external devices.
Capable of handling low fluid levels, intermittent flow, and suction lifts.
Corrosion-Resistant Construction
Pump casing, impeller, and shaft are made of stainless steel, corrosion-resistant alloys, or fluoropolymer-lined materials.
Designed to handle aggressive chemicals, acids, alkalis, and abrasive fluids.
High Efficiency and Wide Operating Range
Flow rates: 1–1200 m3/h depending on the model.
Maximum head: up to 90 meters, suitable for moderate to high-pressure applications.
Operating temperature: -20°C to +120°C, depending on materials.
Automatic Control and VFD Compatibility
Can be integrated with variable frequency drives for precise flow and pressure control.
Supports PLC/SCADA systems for fully automated operation and monitoring.
Low Maintenance and Long Service Life
Reduced moving parts compared to conventional pumps.
Modular design enables easy inspection, cleaning, and component replacement.
Safe and Environmentally Friendly
Leak-free operation minimizes environmental risks.
Suitable for handling toxic, flammable, or environmentally sensitive fluids.
Versatile Applications
Compatible with chemical, food-grade, pharmaceutical, water, wastewater, and industrial fluids.
| Parameter | Specification Range |
Pump Type | Automatic Self-Priming Pump |
Flow Rate | 1 – 1200 m3/h |
Head | Up to 90 meters |
Pressure | Up to 16 bar, depending on model |
Operating Temperature | -20°C to +120°C depending on fluid and materials |
Material of Construction | Stainless steel, fluoropolymer-lined alloys, corrosion-resistant alloys |
Impeller Type | Open or closed impeller |
Shaft Material | Stainless steel or corrosion-resistant alloy |
Seal Type | Mechanical seal or magnetic drive |
Motor Type | TEFC electric motor or submersible motor |
Cable Type | Chemical-resistant insulated cable |
Drive Options | Electric motor, VFD compatible |
Installation Type | Horizontal self-priming with automatic priming |
Noise Level | <75 dB(A) depending on model |
Transfers corrosive chemicals, acids, alkalis, and hazardous liquids.
Ideal for chemical storage tanks, reaction vessels, and circulation systems.
Handles pharmaceutical liquids, sterile solutions, and sensitive compounds.
Compatible with CIP (Clean-In-Place) systems and sanitary fluid handling.
Pumps food-grade liquids, syrups, oils, dairy products, and beverages.
Ensures leak-free, contamination-free operation.
Efficiently pumps water, reclaimed water, and wastewater.
Reduces environmental risk through automatic leak-free priming.
Suitable for cooling liquids, chemical circulation, and industrial process fluids.
Provides stable flow and pressure with minimal maintenance.
Safely transfers toxic, flammable, and environmentally sensitive liquids.
Automatic priming ensures uninterrupted operation with zero leakage.
Ideal for small-scale chemical, food, and pharmaceutical operations.
Compatible with automation, monitoring, and precise flow control systems.
Automatic self-priming allows operation without manual intervention, suitable for unmanned pumping stations.
Verify pump installation, alignment, and electrical connections.
Inspect impeller, bearings, shaft, and automatic priming components.
Confirm fluid compatibility with pump materials.
Ensure suction line has fluid for initial priming if needed.
Power on the pump and allow automatic priming cycle to complete.
Monitor flow, pressure, temperature, and vibration.
Adjust VFD or automation controls to achieve the desired operational parameters.
Operate within rated flow, pressure, and temperature limits.
Periodically inspect impeller, casing, motor, and automatic priming components.
Monitor vibration, noise, and performance indicators.
Gradually reduce flow before stopping the motor.
Drain fluids from suction and discharge lines if required.
Clean and inspect pump components before storage.
Routine Inspection
Monitor vibration, noise, alignment, and automatic priming system performance.
Inspect impellers, casing, and bearings.
Automatic Priming System Maintenance
Check valves, priming chamber, and air release components for proper function.
Clean or replace components if needed.
Motor Maintenance
Monitor temperature, insulation resistance, and bearing condition.
Lubricate bearings as per manufacturer’s guidelines.
Seal and Coupling Maintenance
Inspect for wear, misalignment, or damage.
Replace magnetic or mechanical seals when necessary.
Electrical and Cable Maintenance
Check insulation, grounding, and connections.
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 prime | Blocked suction line, insufficient fluid | Clear blockage, ensure sufficient fluid supply |
Flow rate below specification | Impeller blockage or wear | Clean or replace impeller |
Excessive vibration or noise | Misalignment or bearing wear | Check alignment, replace bearings |
Seal leakage | Wear or improper installation | Replace or realign seals |
Motor overheating | Overload or insufficient cooling | Check motor rating, thermal protection |
Automatic priming failure | Valve blockage or malfunction | Inspect and clean automatic priming system |
Corrosion or erosion | Fluid incompatibility | Verify material compatibility, clean pump |
Automatic Self-Priming – Operates reliably under low suction conditions without manual intervention.
Leak-Free and Safe – Magnetic or mechanically sealed designs minimize environmental risks.
Corrosion and Chemical Resistance – Handles aggressive, viscous, or abrasive fluids.
Energy-Efficient Operation – Optimized hydraulic design reduces energy consumption.
Automation Ready – Compatible with VFD, PLC, and SCADA systems.
Low Maintenance – Fewer moving parts reduce operational downtime.
Versatile Applications – Suitable for chemical, pharmaceutical, food, municipal, and industrial fluids.
Certified Quality – ISO, CE, and API certified for reliability and safety.
The WFB Automatic Self-Priming Pump is a robust, safe, and highly efficient pump solution for industrial, chemical, municipal, food, and pharmaceutical fluid handling applications. Its automatic self-priming capability, corrosion-resistant construction, leak-free design, and automation compatibility make it ideal for continuous, reliable, and environmentally safe fluid transfer operations.
RELATED
Copyright ? Jiangsu Longjie Pump Manufacturing Co., Ltd.