Self-priming Pump

Type WLZ、WZY pump which designed and developed by our factory is our country’s pioneering product (Patent No. 200320114083.4). It is widely used in the fields of petroleum, chemical, metallurgy, power station, steel, mine, paper-making, electrode posit, environmental protection, fire-extinguishing, architecture and sewage-treating. Part of them can instead of inundated pump, long-shaft pump or pump start frequently. It is suitable for delivering clear water, seawater, sewage with little particles (no fiber), industrial waste water, oil and other medium with corrosion.

 100WLZ(WZY)100-32FⅡ-L                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

100—Inlet、outlet diameter of pump is 100mm

WLZ—Vertical no leakage self-priming pump

WZY—Vertical no leakage self-priming pump with suction downward

100—The capacity is 100m³/h at design point

32—The head is 32m at design point

F—Adopt vice-impeller for sealing

Ⅱ—Material sort (No indication, when the material is Ⅰ)

L—Submerged depth mm

Capacity:  11.2～720m³/h,

Head:     10～100m

1.The temperature of medium is below 100℃.

2. The capacity ratio of medium is under 2%.

3.The viscosity of medium is (7～23)×10^-6m²/s..

4. The density of medium is below 1100kg/m³.

5. The particle diameter of medium (unit: mm)

 Type WLZ (WZY) self-priming pump has more advantages than type WFB self-priming pump. The feature is as following:

1. The impeller is closed structure with excellent performance. Its efficiency is 10%～15% higher and permissible installing suction depth is 0.5～1m deeper than that of type WFB pump with opened impeller. Compared with other pumps with the same performance parameter, the motor power of this kind pump can be more low, so it saves more energy.

2. Pump adopts air-water mixed vane segregator with many passages (self-priming disc) for suction, the suction speed is more fast and its self-priming time is 1/3～1/2 shorter than that of type WFB pump with single volute pressure water chamber. The pump has small cubage and light weight.

3. There are two types for water entering：Type WLZ pump adopts pipe-structure with inlet and outlet installed at any angle of plane 360°. Type WZY pump’s suction mouth is downward and outlet can be installed at any angle of plane 270°.It has the features of space-saving and less cost for construction. It needn’t dismantle inlet and outlet pipes while maintenance.

4. Seal uses dynamical sealing which includes vice-impeller sealing and breakdown sealing. But type WFB pump has no special breakdown sealing and it is not suitable for start-up frequently.

5. Connection: Pump is connected with motor through rigid coupling. View from motor end , the rotating direction of pump is clockwise.

6.It is unnecessary to fix check valve or electromagnetism vacuum-destroy valve in pump inlet, it has U pipe which can automatically break siphon and air-balance hole, when pump stops operating, siphon can not pump all water out of pump , so only when pump first starts, it should be poured liquid.

7. Pump Can be equipped with controller which can automatically start and stop pump according to liquid level, and give an alarm for over loading, pump can work automatically without any help of people.