DL vertical multistage pump introduction:
DL, the DLR series vertical multistage pump (low speed n = 1450 r/min) is the factory based on the actual needs of high-rise building water supply market and national fire GB 6245-1998 "standard of fire pump performance requirements and test methods, and research and development is a new product. Can transport containing no solid particles and physical and chemical properties similar to water medium. Flow range of 5 ~ 360 m3 / h, lift range of 22 ~ 300 m, with range of 1.5 ~ 220 kw power, diameter range from 40 ~ 200 m. The same pump can set 1 ~ 5 export.
DL vertical multistage pump features:
DL vertical multistage pump adopts domestic excellent hydraulic model of high efficiency and energy saving, high efficiency, the performance curve flat, wide scope of operation, in conformity with the relevant provisions of the fire department, meet the use of different user needs; DL vertical multistage pump adopts vertical sectional structure, and smooth running, low noise, long service life, covers an area of less, easy installation and maintenance, etc.
DL vertical multistage pump USES:
Life is mainly used in high-rise building water supply, fire control constant pressure water supply, automatic spraying water, automatic water curtain of water supply, etc., can also be used in industrial water supply and drainage, distant distance water, all kinds of used equipment and various production process water, etc. Type DL vertical multistage pump medium temperature does not exceed 80 ℃, the DLR type medium temperature does not exceed 120 ℃
DL vertical multistage pump conditions of use
1, the use of media should be like water, kinematic viscosity < 150 was/s, and no solid granules, non-corrosive properties;
2, DL vertical multistage pump use environment altitude < 1000 meters, more than should be put forward in order to the factory to provide you with more reliable products;
3, the use of medium temperature 15 ℃ ~ 120 ℃.
4, the maximum system work pressure 2.5 MPa or less;
5, ambient temperature should be below 40 ℃, relative humidity below 95%.
DL vertical multistage pump structure details:
DL vertical multistage pump consists of two parts, motor and pump, the motor of Y type three-phase asynchronous motor, pump and motor shaft coupling is used, as a whole for the rigid connection, when used without correction. The pump consists of the stator and rotor parts. Pump stator section by section, the water in the middle, guide vane, discharge period, the stuffing box body parts, etc. To prevent wear and tear of the stator, the stator with sealing ring, balance, etc., on the wear and tear after available spare parts for replacement. Rotor part consists of shaft, impeller, balance the hub. Rotor bottom water lubricated bearing, upside for angular contact ball bearings, DL vertical multistage pump axial force, for the most part, borne by the balancing drum, and the rest of the small residual axial force of angular contact ball bearings to withstand. Water and water and in combination with surface paper pad by sealing tight to achieve. Shaft seal packing or mechanical seals, the user can choose according to need.
Type DL vertical multistage pump rotation direction from the drive end look down for counterclockwise rotation.
1, DL vertical multistage pump compact structure, small size, beautiful shape, cover an area of an area small, save construction costs;
2, DL vertical multistage pump inlet and outlet in the center of the same line, simplify pipeline connection;
3, according to the actual situation, the import and export of DL vertical multistage pump can be assembled into 90 °, 180 °, 270 ° in different directions;
4, according to the actual situation of DL type vertical multistage pump outlet can be assembled into 1 ~ 5 export, to meet the same pump head to obtain different;
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