Centrifugal impeller centrifugal pump impeller is a key component. (1) according to their mechanical structure can be divided into closed, semi-closed and open three. Closed impeller for conveying the cleaning liquid; semi-closed and open impeller for conveying suspension containing solid particles, low efficiency of such pumps. Closed and semi-closed impeller in operation, leaving a portion of the high pressure impeller may leak fluid into the cavity between the impeller and the pump casing, D12-25X8 wear multi-stage pump, because the front wheel low pressure liquid suction port , so the effect of liquids on the front wheel, rear pressure range, it had a point to the inlet side of the impeller axial thrust. The force pushing the inlet side of the impeller to move, causing the impeller and casing wear at the contact, resulting in severe vibration of the pump, disrupting the normal operation of the pump. In the impeller rear panel drill several holes, it can reduce the pressure on both sides of impeller poor, thereby reducing the adverse effects of axial thrust, wear multi-stage pump, but also reduces the efficiency of the pump. These holes are called balance hole. (2) by pipette in different ways can be divided into single-suction impeller and double suction two, D12-25X7 wear multi-stage pump, single suction impeller simple structure, fluid can only be sucked in from the side. Double suction impeller impeller symmetrically from both sides simultaneously sucked liquid, which not only has a large liquid absorption capacity, and essentially eliminate axial thrust. (3) According to the geometry of the impeller blades, the blades can be divided into backbends, radial and bending forward three, since the rear curved blades in favor of converting the kinetic energy of the liquid static pressure energy, and therefore widely used. Performance range D46-30X7D46-30X8D46-30X9D46-30X10D46-50X3D46-50X4D46-50X5D46-50X6D46-50X7D46-50X8D46-50X9D46-50X10D46-50X11 D-type multi-stage centrifugal pump: flow Q: 6.3 ~ 600m3 / h Head H: 17 ~ 850m seven, D-type multi-stage centrifugal pump Model Description: 100 D 16 * 3100 is the pump inlet diameter 100mmD multistage centrifugal pumps 16 are single-stage pump designed head D12-25X9 wear multi-stage pump _ wear multi-stage _ mine centrifugal pump provided by the Anguo City Pump Co., Ltd. Shi Yuan. D12-25X9 wear multi-stage pump _ _ mine wear multi-stage centrifugal pump is Yasukuni City-yuan Pump Co., Ltd. (www.shiyuanbeng.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Michael Geng.