Self-balancing multistage pump: 1. The balance structure of ordinary multi-stage pump is cancelled, and there are no parts that are particularly easy to wear in the pump; 2. The materials of the grinding parts in the pump are carefully matched, so that the pump can run smoothly for a long time. Self-balancing multistage pump has high reliability and durability.
Ordinary multi-stage pump: due to the reflux of the balanced reflux pipe, the volume loss is large. Especially when the balance parts are worn, the outlet center of the impeller deviates from the inlet center of the guide vane, which leads to the further reduction of the efficiency of the pump.
Self-balancing multistage pump;
1. The hydraulic performance and structural design have been comprehensively optimized, and the efficiency of the pump has been improved.
2. There is no need for a balanced return pipe structure required by a common multistage pump, which further improves the volumetric efficiency of the pump.
3. Adopting the patented spiral groove throttle sleeve of our company further reduces the leakage of medium from the high-pressure side to the low-pressure side, and the volumetric efficiency of the pump is high.
4. Impeller and guide vane are always in the centering state, which will not affect the efficiency of the pump.
Performance range comparison
Ordinary multi-stage pump: when the flow rate is small or the single-stage lift is high, it is difficult to cast the closed impeller, resulting in high production cost or inability to produce.
Self-balancing multi-stage pump: With the patented technology of semi-open impeller of our company, no matter how small the flow rate is and how high the single-stage lift is, there will be no situation that the closed impeller cannot be cast. Self-balancing multi-stage pump has a wide range of flow and single-stage lift, which can meet the requirements of users more widely.
Comparison of sealing performance
Ordinary multi-stage pump: when using mechanical seal, due to the wear of the balance structure, the rotor moves in a large axial direction and the rotor moves in one direction, and the mechanical seal is easily damaged or invalid.
Self-balancing multistage pump: the axial movement of the rotor is very small, which does not affect the use of mechanical seals. Adopting the patented mechanical sealing technology of stepped inner hole container of our company, the sealing performance is reliable, the service life is long and the installation and maintenance are convenient. Self-balancing multistage pump shaft seal has good performance and convenient installation and maintenance.
Bearing life comparison
Ordinary multi-stage pump: the bearing part is fully enclosed grease lubrication structure, with only oil nozzle and no oil drain hole. This leads to poor lubrication and heat dissipation of bearings, rising bearing temperature and short service life.
Self-balancing multi-stage pump: according to the use conditions, the bearing parts can be lubricated by oil or grease, which can better meet the requirements of users. The oil charging and discharging holes are arranged reasonably to keep the bearings in a good lubrication state. The bearing body is equipped with a patented ventilation plug of our company, so the bearing cavity has good ventilation and heat dissipation effect, and external impurities are not easy to enter the bearing body. Self-balancing multi-stage pump bearing parts have low temperature rise and long service life.