WFB series sealedless self-priming pumps manufacturer supports customization and wholesale orders.

The WFB series non-sealed self-priming pumps are a pioneering product that fills a domestic gap, boasting features like temperature resistance, pressure resistance, and wear resistance. Currently, the series includes complete units made from various materials such as stainless steel, reinforced polypropylene, cast steel, and cast iron, with five different designs totaling over 5,000 specifications. Widely used in industries such as electronics, electricity, chemicals, metallurgy, food, electroplating, environmental protection, firefighting, textile dyeing, mining, ore selection, and civil construction. The "ring-type multi-face centrifugal seal device" for pumps eliminates the traditional stuffing box seal and mechanical seal, completely controlling "leakage, overflow, dripping, and leakage," making it an ideal replacement for various long-shaft submersible pumps, submersible pumps, and submersible sludge pumps. The sealing device does not rub or wear during operation, with a lifespan over 10 times longer than similar products.

The vacuum pump principle is transplanted, featuring stable and reliable self-priming performance, especially with the use of an "electric air control valve." It boasts minimal vibration, low noise, flexible movement, easy disassembly, and simple installation without the need for anchoring. It has superior self-control capabilities and can be matched with high-tech fields and highly automated systems.

Features of different shapes: Rectangular and conical shapes offer various installation options; explosion-proof models are suitable for flammable and explosive environments; outdoor models, with a secure three-dimensional outdoor cover, effectively prevent rain, fog, dampness, and humidity for outdoor operations; trolley-type models can move the pump to any work site as needed.

Selection Methods
(1) The meanings of the "Category Code" column in the Performance Parameters table are as follows: Type 1 is rectangular, Type 2 is conical, Type 3 is explosion-proof, Type 4 is outdoor, and Type 5 is trolley mobile. The "Material Symbol" column uses the letters T, G, PP, BXG to represent iron, steel, reinforced polypropylene, and stainless steel (1Cr18Ni9Ti) respectively.
(2) Model Significance:
(3) Full model writing format. Assuming the requirements for the pump are: design as a trolley-type mobile, material as reinforced polypropylene, suction liquid diameter of 40mm. Performance as AD1. The full model number for this pump is "5PP40WFB-AD1".
Assuming the pump design is rectangular explosion-proof, with all other requirements as stated above, the complete model number for this pump should be written as "1.3PP40WFB-AD1."
Assuming the pump design is conical and outdoor, with all other requirements as specified, the complete model number for this pump should be written as "2.4PP40WFB-AD1."