With D6-25 × 2 horizontal multistage centrifugal pump for conveying water and the physical and chemical properties similar to liquid water. The pump head is H: 50 to meter the flow Q: 6m3 / h. The maximum temperature of the liquid must not exceed 80 ℃, widely used in mining drainage, factories and urban water supply purposes. The use of temperature T: 80 ℃ + 80 ℃. D6-25 × 2 horizontal multi-stage centrifugal pumps Structure Description D6-25 × 2 horizontal multistage multistage centrifugal pump, suction in the water segment, into a horizontal direction, the outlet is on the water segment vertically upwards, its head may need to increase or decrease based on the use of pump series. Multistage centrifugal pump assembly is good or not, affect the performance of a great relationship, especially in the mouth of each impeller and guide wing and out of the center, which is about to make a slight deviation to reduce the pump flow rate, head lowered inefficient, so the repair assembly Be sure to pay attention to when. D6-25 × 2 horizontal multistage centrifugal pump main parts are: water segment, the middle, the water segment, impeller, guide wings baffle, the water segment guide wings, shaft seal ring, gimbals, bushings, end caps and bearing body. Water segment, the middle guide vane baffle, the water segment guide wings, the water segment and end caps are made of cast iron, together form the pump studio. The impeller is made of high quality cast iron, there are leaves, liquid axially unilateral entry, the front and rear wheel compression range, there must be an axial force, the axial force on the balance disc borne by the static balance test impeller manufacture . Quality carbon steel shaft, in the middle with the impeller, with the key, the sleeve and the sleeve nut on the shaft. The coupling end of the shaft member is mounted, connected directly to the motor. Seal ring is made of cast iron, high-pressure water pumps to prevent water leakage back portions are fixed above the water segment and the middle of wearing parts, replace worn parts availability. Balancing rings made of cast iron, fixed on the water segment, which together constitute the balance balancing device. Balance disc made of cast iron, mounted on the shaft, located between the water segment and end cap, balance the axial force. Bushings made of cast iron, located at the packing room, as fixed impeller and shaft-fitting protection for wearing parts, replace worn parts availability. Bearings are single row radial ball bearings, the use of calcium-based lubricating grease. Filler acts as a seal to prevent leakage of air entering and plenty of fluids, packing the water segment and end cap packing room, packing gland, packing ring and packing etc., packing room plays the role of a small amount of high-pressure water flows into the water seal. Tightness of the packing must be appropriate, not too tight also not too loose, liquid oozing drop by drop can prevail. If the packing is too tight, the sleeve is easy to heat, while consuming power. Packing too loose, fluid loss due to lower pump efficiency.