D-type horizontal centrifugal pump Overview: D-type horizontal centrifugal pump for conveying water and make similar physical and chemical properties of liquid water. The pump head is H23 to meter the flow of 12.6 - m3 / h. The maximum temperature of the liquid must not exceed 80 ℃, widely used in mine drainage, factories and urban water supply purposes. Diameter DN: 50- (mm) Head H: 23- (m) Flow Q: 12.6- (m3 / h) using a temperature T: 80 ℃ + 80 ℃. D-type horizontal centrifugal pump Structure Description D-type horizontal multistage centrifugal pump, suction in the water segment, into a horizontal direction, the water outlet section vertically upward, according to the need to use its head The increase or decrease in pump series. Multistage centrifugal pump assembly is good or not, the impact on 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 of the pump flow is reduced, reducing lift poor efficiency, so the repair assembly Be sure to pay attention to when. D-type horizontal centrifugal pump main parts are: water segment, the middle, the water segment, impeller, guide wings baffle, the water segment wing guide, shaft, sealing ring, balancing rings, bushings, end caps and bearing body. Water segment, the middle baffle vanes, the water segment guide wings, the water segment and end caps are made of cast iron, together form the pump chamber. The impeller is made of high quality cast iron, there are blades, liquid axial unilateral entry, due to unequal pressure around the impeller, there must be an axial force, the axial force on the balance disc borne by the static balance test impeller manufacturing . Axis for high-quality carbon steel, middle mounted impeller, keys, bushings and bushing nut on the shaft. One end of the shaft is mounted coupling part, connected directly to the motor. Sealing rings made of cast iron, high-pressure water pumps to prevent water leakage back part, are fixed on the water and in the middle section, for wearing parts, replace worn parts availability. Balancing rings made of cast iron, is fixed to the water segment, which together constitute the balancing device with a balance. Balance disc is 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, using calcium-based grease lubrication. Filler acts as a seal to prevent leakage of air entering and plenty of fluids, packing by water segment and end cap packing room, packing gland, packing ring and packing etc., filling the role of a small amount from the water seal chamber pressure water inflows. Tightness of filler must be appropriate, not too tight, not too loose also, to be able to drop by drop liquid oozing prevail. If the packing is too tight, bushings easy to heat, while consuming power. Packing too loose, fluid loss due to lower pump efficiency.