First, the product overview: D, DG horizontal, single suction multi-stage, segmented centrifugal pump. With high efficiency, wide range of performance, safe and stable operation, low noise, long life, easy installation and maintenance. For the transport of water or other physical and chemical properties similar to water. It is also possible to change the material of the pump overcurrent unit, the form of the seal, and the addition of a cooling system for conveying hot water, oil, corrosive or abrasive-containing media. Product implementation JB / T1051-93 "multi-stage centrifugal pump water type and basic parameters" standard. Our products are all computer design and optimization, the company has strong technical force, rich production experience and improve the detection means to ensure product quality is stable and reliable. Second, the scope of application: D-type pump suction single-stage multistage centrifugal pump for the transport of water and physical and chemical properties similar to the use of liquid water. Pump head H19 to 245.7 meters, the flow rate of 18 to 162m3 / h, the maximum temperature of liquid not 80 ℃, suitable for industrial and urban water supply and drainage, high-rise building pressurized water supply, garden sprinkler, fire pressurization, long distance water supply, heating, Bathroom and other hot and cold water circulation booster and equipment, etc., especially for small boiler feed water. Third, the product features: 1, advanced hydraulic model, high efficiency, wide range of performance. 2, pump running smoothly, low noise. 3, the shaft seal adopts the soft packing seal or the mechanical seal, the seal is safe and reliable, the structure is simple, the maintenance is convenient and quick. 4, the shaft is full seal structure to ensure that no contact with the media, no corrosion, long service life. Technical parameters: Flow: 6.3-300m3 / h; Head: 13-650m; Power: 2.2-400KW; Speed: 1450-2950r / min; Diameter: φ50-φ200; Temperature range: ≤ 105 ℃; Working pressure: ≤ 3.0Mpa. Fifth, the model meaning: