ZW series self-suction non clogging sewage pump
A new style product successfully developed on the basis of the repeated research on the same know-how of both at home and abroad.This pump integrates self-suction and non-clogging and uses axial-back flow outside-mixing type and, through the unique design of both pump casing and impeller geat, needs not to mount a foo t valve and prim e the leading water just like the common self-suction pure water pump and also can pump the liquid containing the solid of big grains and long fiber impurities.
Compared with the same domestic products, this pump features a simple structure, good self-suction performance, strong sewage draining capacity, high efficiency, energy saving and easy use and repair, with every technical performance index of it ranking first nationally among the sewage pump series products and up to the world advanced level, and holds a wide applicable market and progressive future.
Product Information
This pump consists of pump casing, impeller, rear cover,mechanical seal, shaft, bearing seat, inlet valve, air-liquid separating pipe, water filling valve, inlet and drain-out nipples etc.
A liquid storing cavity is set inside of the pump casing and connected to the working cavity through the back-flow hole on the upper and the cycling hole on the lower to form the axial-back flow outside mixing type system of the pump.
Liquid of a certain volume has been stored in the storing cavity after the pump stops working and, under the action of the impeller when the pump starts, is thrown out upwards with air and then flows back to the working cavity through the grids of the air-liquid separating pipe, the air is exhausted out of the pump to have a certain vacuum formed inside of the pump so as to get the self-suction action.
Model meaning
specifications
| No | Name | No | Name | No | Name | No | Name |
| 1 | Inlet nipple | 5 | Outlet nipple | 9 | Impeller | 13 | Pump shaft |
| 2 | Inlet valve | 6 | Pump casing | 10 | Mechanicalsea | 14 | Bearing cover |
| 3 | Middle nipple | 7 | Air-liquid separating pipe | 11 | Water bafle | 15 | Bottom cover-plate |
size