WFB系列無密封自控自吸泵采用無泄漏V型密封總成，革除了傳統水泵的填料密封、盤根密封、機械密封，*制服了“跑、冒、滴、漏”，是代替原各種長軸液下泵、潛水泵、潛污泵等的設備。 該結構泵缺點：

一、停機液體沿軸方向往外泄漏，對于頻繁起動設備的場合不太適合；  二、副葉輪消耗的功率太大、水泵效率低。WFB改進型結構為有密封裝置，一是提高水泵效率，二是降低電機功率，     三、是抑制了自吸泵停機泄漏現象。 運動過程中密封裝置不摩擦、無磨損，使用壽命較同類產品長10倍以上。
       移植真空泵原理、自吸性能穩定可靠，特別是采用“電動空氣控制閥”真正實現了“一次引流，終身自吸”。 效率高、振動小、噪音低、移動靈活、拆卸簡便、易于安裝、不需地腳固定，免去了長軸液下泵運輸，安裝、維修等困難。  自吸泵具有*的自控功能，可與高科技領域和高度自動化系列統配套使用。
 

WFB series of self-control self-priming pump without seal leak-free V-shaped seal assembly, get rid of the traditional pump packing seals, packing seals, mechanical seal, compley subdued, "run, run, drip, drain," is to replace the original variety long axis of the pump, submersible pump, submersible sewage pumps ideal equipment. The structure of the pump drawbacks: First, stop the liquid leak out along the axis, the occasion for frequent starting equipment is not suitable; two vice impeller power consumption too, pump efficiency is low. WFB improved structure of a sealing device, necessary to raise the pump efficiency, the second is to reduce the motor power, third is inhibition of the pump stop leakage. Movement in the seal is not friction, no wear, long service life 10 times more than similar products.
Transplant vacuum principle, self-priming, reliable performance, especially the use of "electric air control valve" so that "a drainage, lifelong self-absorption."
High efficiency, small vibration, low noise, and flexible, easy disassembly, easy to install, no need to foot fixed, eliminating the long axis of the submerged pump transportation, installation and maintenance difficulties.
Has excellent self-control function, with high-tech and highly automated systems supporting the use of series.