I. Product Overview 
 HYS-type filter press dedicated sewage pump is combined by the company to use the filter manufacturers and the actual site conditions. Development of a new generation of well-designed special filter pump leak, the product widely used in petroleum, chemical, rare earth smelting, filter the liquid starch slurry, pharmaceutical, pesticide, dye, paint, paper, electroplating, electric power , food and other industries. 
 The series features a unique hydraulic design and the structure of two-stage impeller, to ensure that its performance curve than YLB, UHB, HFTK adapted from other common centrifugal filter press feed pump more steep, more suitable for mine material conditions of special use. 
 Second, the innovative technical features 
 1.'s Unique seal 
 Combined with vacuum seal technology plus the ever-increasing pressure on decreasing flow of the case, sealing components do not bear the pressure, especially in the press of late due to pump pressure in large, sealed its innovative design, the Shaft seal at the base to no leakage. 
 2. Two-stage impeller design 
 The pump is double main pump, double main impeller design, solve a single pump single impeller pump in the early feeding excessive vibration and noise, the performance curve flat, narrow impeller, through the defects is ideal for poor performance press by the resistance change should be to achieve high flow low pressure feed and low flow, high pressure filtration requirements. 
 3. Double impeller pump wear resistance than the single impeller pump better 
 Double impeller pump for low speed impeller for higher export pump outlet pressure to overcome the single impeller pump to increase pressure on the impeller speed increases, resulting in impeller, pump casing wear increased the shortcomings effectively improve the water pump, etc. flow parts of life. 
 4. Wide range of applications 
 The product can be cast steel, cast iron, stainless steel and other materials manufacturing, may be suitable for different media requirements, the user selected a wider range. 
 5. The gap between impeller and pump adjustable wall 
 Unique bearing box design, users often time use, the pressure drop due to wear and tear, it can pump impeller and the wall by adjusting the gap to continue to safeguard the high pressure pump to improve the life of the pump, extend the pump overhaul cycle, to overcome the traditional single-impeller pump pressure filtration pressure drop due to wear quickly, often replaced the impeller short life and other shortcomings. 
 Third, the application environment 
 1. This series of pumps can deliver within 100 ℃ temperature, various types of corrosive and non-corrosive and various types of clear liquid and the slurry feed pump pressure filter machines. For example: non-ferrous metals zinc, copper, cobalt, nickel, manganese and other wet; starch, paper and process of sewage, sludge filter press feed, Taiwan refining process filter with pump, mining beneficiation, non-metallic mineral processing (titanium dioxide, kaolin, etc.) in the slurry pump technology, environmental protection industry in the sludge, sludge pump, other chemicals, dyes, paper, medicine, food production process in the filter press pump. 
 2. Long run to force the pressure (high pressure pump outlet) conveying corrosive media positions, such as flue gas desulfurization, atmospheric pressure spray pump governance,