A WFB series no-seal-self-control-self-suction pump is a centrifugal pump designed to lift fluids from a level below the pump inlet without requiring external priming after the initial setup. Unlike standard pumps that rely on mechanical seals (which often leak or wear out), the WFB series uses hydrodynamic centrifugal force to create a seal during operation. This makes it particularly effective for automation-heavy environments where reliability is non-negotiable.
| Parameter | Specification Details |
| Flow Rate Range | 0.75 $m^3/h$ to 6800 $m^3/h$ |
| Head (Lift) | 4m to 130m |
| Material Options | SUS304, SUS316L, Reinforced PP, Cast Steel |
| Self-Priming Height | Up to 8 meters |
| Drive Power | 0.75 kW to 160 kW |
| Operating Temp | -20°C to +120°C (Material dependent) |
| Inlet/Outlet Diameter | 25mm to 1000mm |
| Feature | WFB Series (No-Seal) | Standard Mechanical Seal Pump |
| Sealing Maintenance | Virtually zero; no contact wear | High; frequent seal replacements |
| Leakage Risk | Minimal due to centrifugal design | High after seal wear |
| Priming | One-time priming for life | Often requires re-priming |
| Reliability | High in continuous operation | Moderate; prone to dry-run damage |
At Jiangsu Rongsheng Import and Export Co., Ltd., we bring over a decade of engineering expertise to the fluid handling and lead oxide production equipment sectors.
Expert Engineering: Our R&D team consists of senior engineers with 10+ years of experience in high-precision equipment design.
Quality Control: Every WFB series no-seal-self-control-self-suction pump undergoes rigorous pressure and suction testing before shipment.
Global Integration: We provide a full industrial chain service, from customized manufacturing to on-site technical guidance, ensuring the equipment fits your specific workflow.
Q: Does the pump really only need to be primed once?
A: Yes. The "once-primed, lifetime suction" design ensures that as long as the pump casing retains its initial fluid, it will automatically evacuate air and lift liquid in subsequent starts.
Q: Can this pump handle corrosive liquids?
A: Absolutely. By selecting the Enforced Polypropylene or Stainless Steel versions, the pump can safely transport various acids, alkalis, and chemical media.
Q: Is it suitable for outdoor use in rain?
A: Yes, we offer specific Outdoor Type and Explosion-proof configurations designed to withstand rain, fog, and moisture.