Primarily for temperature less than 105 ℃ water or physical and chemical properties similar to water. Applies to the water plant, pumping stations, power plants, air conditioning, water recycling, heating cycle with hot water, industrial water supply systems, fire systems, shipbuilding, oil refining industry (general liquid) for conveying liquid occasions. Outlet diameter: DN = 80 ~~ 500mm; flow: 50 ~ 4200m3 / h (rated point); Head: H = 7.6 to 160m (rated point) allowable working pressure: 2.5Mpa; allowable test pressure: 3.75Mpa; media: water or physical and chemical properties similar to water and other liquids (solid particles ≤ 80 mg / L). Temperature: ≤ 105 ° C design optimized hydraulic model, not only so that the pump has excellent hydraulic performance, and no axial force (in theory) the pumps, especially the problem of the large pumps. Pump, pump cover, impeller improve pump performance and efficiency of anti-cavitation The precision casting overcurrent surface smooth. Packing seal according to the the conveying medium or user requirements, there is enough space to replace the packing. 1, allowable working pressure for 2.5Mpa; pump inlet pressure + pump head ≤ 2.5Mpa. According to the maximum pressure of the pump casing, pump and pump cover material of gray cast iron (1.6Mpa). Please specify when ordering pump pressure situation or material. 2, medium: temperature ≤ 105 ℃ water or physical and chemical properties similar to water or other liquids (solid particles ≤ 80 mg / L). 1, the use of the grease lubricated Enclosed rolling, simple maintenance, long running time. 2, with a constant oil level in the oil cup, also can be used to dilute oil lubrication. Selection of imported (SKF, NSK, NTN) high quality bearings, smooth running, low bath tone, long service life. Compact structure, good stability. This type of pump is the pump casing open structure, both exports and imports in the pump body, repair simply hanging out pump cover, rotor part can be moved out for examination, without the need to disassemble pipeline is very convenient. Need motor driven machine at the left end in the right end, easy installation on site. Shorter axial dimensions of rotor structure, the steel shaft is better, more reliable operation. A pump body character seal ring, the impeller sealing ring is an optional part. Sealing ring wear can be replaced, reducing operation and maintenance costs. Working conditions: 1. Allowable working pressure is 2.5MPa, large debate inlet pressure + pump head is less than or equal to 2.5MPa according to the maximum pressure of the pump casing, pump and pump cover can be made of gray cast iron (1.6MPa), ductile cast iron (2.0MPa), cast (2.5MPa), in order to please the the specified pump commitments the extravagant circumstances or material. 2 medium: temperature less than or equal to 105 degrees, water or physical and chemical properties similar to water and other liquids. Allowable working pressure (solid particles less than or equal to 80mg / L) outlet diameter: DN = 80 - 500mm Flow :50 - 4200 m3 / h (rated point) Head :7.6 - 160 (rated point): 2.5MPa Xu Test pressure: 3.75MPa.