Compared with WFB type self-priming pump, WLZ (WZY) self-priming pump has obvious technical advantages:
1, the pump impeller to the closed structure, the WFB pump impeller using the open structure of high efficiency 10% ~ 15%, with the performance parameters of the pump with motor power by a class is generally low, energy-saving significantly, at the same time, the impeller cavitation performance is good, installation allows much more WFB pump absorption 0.5 ~ 1 m.
2. Self-absorption of water pump “ Multi-channel vane type gas-water mixing separator (self-absorption disk) With the feature of rapid completion of the self-priming process, the self-absorption time of the WFB type pump is less than 1/3 ~ 1/2, and the pump volume is small and the weight is light.
3. There are two types of water intake: the WLZ pump adopts the pipe structure, and the inlet and outlet can be in the plane 360°. Any position is drawn in and out. The WZY pump adopts the lower suction type, the outlet can be in the plane 270° Any direction. When repairing the water pump, no need to remove the inlet and outlet pipe, especially the WZY type occupies small area and saves the infrastructure investment.
4. The seal adopts multi-surface pile-fluid power seal, which consists of the secondary impeller seal and the stop seal. The WFB type hydrodynamic seal is not equipped with a special stop seal, which is not suitable for frequent launch occasions.
5. The connection mode is the water pump and the motor rigidity straight. From the motor end, the pump is rotated clockwise.
6, water pump imported without like WFB pump with check valves or auxiliary equipment such as vacuum breaker valve itself has a special automatic damage siphon u-shaped tube structure and air balance hole, when stop, siphonage cannot fit within the pump reservoir, therefore, as long as the first run when filled with liquid, after running without charging, truly a filler, lifetime.
7. The pump can be equipped with a control cabinet, which has many functions, such as automatic start-stop and overload alarm, to realize unmanned operation and automatic work.
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