Product Brief
The DL and DLR vertical multistage centrifugal pumps produced by the company are multistage pumps produced according to the actual needs of the water supply market of high-rise buildings. DL and DLR vertical multistage centrifugal pumps are used for conveying medium without hard particles and with physical and chemical properties similar to that of water. The company develops new products according to China's water supply and drainage of high-rise buildings and GB6245-98 standard of National Fire Protection Bureau. Because of the excellent hydraulic model with high efficiency and energy saving, this type of pump has the advantages of high efficiency and wide performance range, which better meets the user's use requirements. In addition, This type of pump adopts the vertical and sectional structure, and it is safe, stable, long-life, small floor area, safe and convenient for maintenance. DL and DLR vertical multistage centrifugal pumps are hydraulic models of is type pumps, which are highly efficient and energy-saving products recommended by the state. The screw clamps the water inlet section, the middle section and the water outlet section into a whole. Each stage of the water pump is equipped with an impeller and a guide vane. The axial force is solved by hydraulic balance method, and the residual axial force is borne by ball bearing and lubricated by grease. The shaft seal adopts soft packing or mechanical seal. The product is in accordance with JB / t2727-93 type and basic parameters of vertical multistage centrifugal pump. It is mainly used for suction and delivery of diluted, clean, non corrosive, non explosive clean water and water with similar physical and chemical properties without solid particles or fibers. Our products are all designed and optimized by computer. The company has strong technical force, rich production experience and perfect detection means, so as to ensure the stability and reliability of product quality.
Product characteristics
1. Advanced hydraulic model: high efficiency, wide range of performance.
2. New structure, reliable operation: the balance drum is cancelled, and its axial force is balanced by hydraulic force, which completely solves the problems of easy rusting, easy to bite and easy to wear of the balance drum, and ensures more reliable operation.
3. Less operation and maintenance costs: adopt high-quality mechanical seal, wear-resistant, no leakage, long service life, low failure rate, with less operation and maintenance costs.
4. Stable operation and low noise: low speed motor is adopted to make the pump run stably and the noise is lower.
5. Vertical structure, small floor area.
Product use
DL series vertical multi-stage centrifugal pump is mainly used for high-rise building domestic water supply, fire constant pressure water supply, automatic spray water, automatic water curtain water supply, etc. it can also be used for factory and mine water supply and drainage, long-distance water supply, supporting use of various equipment and various production process water, etc. The service temperature of DL vertical multistage centrifugal pump shall not exceed 80 ℃, and that of DLR vertical multistage centrifugal pump shall not exceed 120 ℃.
Conditions of use
1. The medium used shall be similar to water, with kinematic viscosity less than 150mm2 / s, no hard particles and no corrosive property;
2. DL vertical multi-stage centrifugal pump uses an environment altitude of less than 1000m, which should be put forward in order to provide you with more reliable products;
3. Service temperature of medium - 15 ℃ ~ 120 ℃;
4. Maximum system working pressure ≤ 2.5MPa;
5. The ambient temperature shall be lower than 40 ℃ and the relative humidity shall be lower than 95%.
performance parameter
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