This series pumps are single suction, multistage and segmental centrifugal pumps. The capacity of this pump ranges from 10to 66 m3/h, the head ranges from90to 1100m, the temperature of the medium should not more than 130℃. This series pumps are mainly used for boiler feed of medium and small thermal power plant, and the other occasions which needs small flow but high head.
This series of pumps have many advanced features such as high efficiency, energy-saving. The shaft seal is soft packing gland.The materials of major parts as follows: suction casing, interstage, dischagre casing, diffuser, impeller——plain cast iron (low pressure end) and nodular cast iron (high pressure end), shaft——carbon steel.
The meaning of pump type as following:
80DG50
80—diameter of inlet and outlet (mm);
-single-stage head (m).
DG high pressure boiler feed pump ( injection water pump)
This series pumps are single suction, multistage and segmental centrifugal pumps, and used for high pressure boiler feed of medium thermal power plant or oil filed water flood, and the maximum temperature of the medium is no more than 160℃. The inlet and outlet of the boiler feed water pump are vertical, the suction of water injection pump in the side.
The rotors are supported by the free bearings on the both sides, through auxiliary oil pump feed the bearing forced lubrication, can transfer bearing room into cooling water.
The materials of major parts as follows: suction casing, interstage, dischagre casing,—— cast steel or cast stainless steel; diffuser, impeller, shaft——stainless steel.
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