Which is the best pump accessory supplier in Dalian

The left and right positioning sleeves and threaded sleeves of the Dalian pump accessories are composed of a clearance fit (φ 165D/d) between the impeller and the shaft. Due to the large tolerance surface (181335mm2) of the fit between the impeller and the shaft, there are some errors in the shape and position of the impeller hole, shaft, and key, making it difficult to disassemble the impeller. The gap between the positioning sleeve and the shaft has been filled and blocked by the rust and dirt deposition of the medium, and the positioning sleeve cannot be removed separately.

It can only be removed together with the impeller, which further increases the difficulty of disassembling the impeller. In order to improve the suction performance of the water pump, the suction pipeline of the pipeline pump should be shortened as much as possible, with as few bends as possible (large curvature radius is recommended for bends), in order to reduce pipeline resistance loss. To prevent cavitation of the pump, the suction pipeline of the water pump should avoid the accumulation of gas in the bag shaped part as much as possible. If it cannot be avoided, a DN15 or DN20 exhaust valve should be installed in the bag shaped part.