WFB series of non-sealed self-priming pump, is to fill the gaps in the first product, the product has a temperature, pressure, wear-resistant, "a drainage, lifelong self-absorption" and other functions. Currently producing stainless steel, polypropylene, cast steel, cast iron and other materials of the series machine, a total of five different shapes a total of more than 1,000 kinds of specifications. In the electronics, power, chemical, metallurgy, medicine, food, electroplating, environmental protection, fire protection, municipal services, water purification, defense industry, textile printing and dyeing industries widely used by users. WFB series of non-sealed self-priming pump unique advantages: 1, the use of "pump with a multi-faceted centrifuge seal" to get rid of the traditional pump packing seal, packing seal, mechanical seal, completely solve the "Run, run, drop , Drain ", is the original alternative to all kinds of long axis submerged pump, submersible pumps, submersible sewage pumps and other the best equipment. 2, the operation of the sealing device is not friction, no wear and tear, the service life of more than 10 times longer than similar products. 3, transplanting vacuum pump principle, self-priming performance is stable and reliable, especially the use of "electric air control valve", truly "a drainage, lifelong self-absorption." 4, small vibration, low noise, flexible mobile, easy to disassemble, easy to install, without foot fixed. 5, with superior self-control function, can be used in conjunction with high-tech fields and a high degree of automation systems.