DG Centrifugal Pump

Product name: DG Centrifugal Pump
Model: DG Centrifugal Pump
Application: DG horizontal multistage boiler feed pump uses state recommended hydraulic model of energy-efficient products. With high efficiency, wide range of performance, safety and smooth operation, low noise, long life, easy installation and maintenance.
Product overview
DG horizontal multistage boiler feed pump Overview:
DG horizontal multistage boiler feed pump uses state recommended hydraulic model of energy-efficient products. With high efficiency, wide range of performance, safety and smooth operation, low noise, long life, easy installation and maintenance.
DG horizontal multistage boiler feed pump, suitable for medium and low pressure boiler feed water, plants, urban high lift water. Except for conveying water or physical and chemical properties similar to liquid water, these two pumping medium temperature of -20 ℃ ~ 105 ℃ (DG85-80,200DG43, these two pumping medium temperature of -20 ℃ ~ 105 ℃ ). The pressure in the pump inlet must not exceed 0.59MPa (6kgf / cm2).
DG horizontal multistage boiler feed pump structure type:
DG horizontal multistage boiler feed pump inlet and outlet are vertically upward, by tightening bolts to pump water segment, the middle, the water segment, bearing body coupled integral part of the pump housing. Select the pump series based on the pump head.
This series of multi-stage pump rotor part by the shaft and mounted impeller, bushings, balance disc and other parts along an axis, wherein the number of the pump impeller according to the number of stages may be. Shaft parts with flat keys and shaft nuts so that the shaft together as one. Rolling across both ends of the rotor or sliding bearing. Bearing according to different models may be, are not subjected to axial force, the axial force on the balance disc balance. Pump allows the rotor during operation of the pump housing in axial swimming, you can not use radial ball bearings. Rolling bearings with grease lubricated plain bearings with oil lubrication and oil ring self-lubricating, circulating water cooling.
Pump water segment, the middle of the sealing surface, the water between segments are made of molybdenum disulfide grease sealed with sealing ring between the rotor portion and the fixed portion, the guide vane sets, etc. sealed, when the seal ring and the guide vane sets It should be replaced when the wear has affected the performance of the pump.
Seal in the form of a mechanical shaft seal and packing seal two. When the pump packing, packing ring placed position to be correct, the tightness of the filler must be appropriate, in order to be able to drop by drop liquid oozing appropriate.
DG horizontal multistage boiler feed pump parameters:
Flow rate Q 3.75 ~ 720m3 / h
Head H 50 ~ 1500m
DG horizontal multistage boiler feed pump Model Description:
DG25-50 × 3
DG- single suction, multistage boiler feed pump
25- flow (m3 / h)
50- single-stage pump head (m)
3- pump series
40DGⅠ40 × 3
40- pump inlet diameter (mm)
DG- single suction, multistage boiler feed pump
40- single-stage pump head (m)
3- pump series
DG horizontal multistage boiler feed pump rotation:
From the motor, the pump is clockwise.
DG horizontal multistage boiler feed pump sets:
Complete supply of pumps, motors, check valves, valve, utility base or base, the pump is clockwise rotation.