Product Features
1.Adopts patented multi-face labyrinth centrifugal sealing structure, eliminating conventional packing and mechanical seals to eradicate all leakage; an ideal replacement for long-shaft sump pumps, submersible pumps and submersible sewage pumps.
2.The sealing assembly operates friction-free, delivering service life over 10 times longer than standard pumps.
3.Gas-liquid separation structure combined with an electric air control valve eliminates siphon effect to ensure stable lifelong self‑priming after initial water filling.
4.Low vibration and low noise; no anchor bolts required for installation, enabling easy disassembly and flexible relocation.
5.Equipped with automatic high/low liquid level alarm, adaptable to fully automatic control systems.
6.Configuration options:
A,Standard rectangular & conical types for general service;
B,Explosion-proof version for flammable and explosive hazardous environments;
C,Outdoor canopy type with rain & moisture protection for open-air installation;
D, Trolley-mounted design for free on-site shifting.
Main Application
Electronics, power generation, chemical, metallurgy, pharmaceutical, food processing, electroplating, environmental protection, fire service, municipal water treatment, defense industry, textile printing & dyeing, mineral processing and civil construction sectors.
Model Designation
For example:
Model: 2 G 40 WFB-A
2-Type Code
G-Material Code
40-Suction Diameter (mm)
WFB-Seal-less Self-Priming Pump
A-Performance Classification
Notes:
The numbers 1–7 in the Type Code column indicate the following:
Type 1: Rectangular
Type 2: Conical
Type 3: Explosion-Proof
Type 4: Outdoor
Type 5: Trolley-Mounted
Type 6: Freeze-Proof
Type 7: Multi-Stage
The letters in the Material Code column (T, G, PP, BXG) represent the following materials:
T: Cast Iron
G: Steel (Carbon Steel, Wear-Resistant Steel: JM3, JM6)
PP: Reinforced Polypropylene
BXG: Stainless Steel (321, 304, 316, 316L)
Structure Diagram
1.Suction port
2.drainage port
3.Liquid outlet (with check valv
4.Self-priming exhaust device
5.Vending port
6.Overflow port
