Horizontal multi-stage boiler feedwater pump supplier Hunan Zhongda DG85-80 * 9 feedwater pump

Description :

　　Overview of DG85-80 * 9 multi-stage boiler feedwater pump:

　　The DG type sub high pressure boiler feed pump is a horizontal multi-stage single suction segmental centrifugal pump. Its series of boiler feed pumps are high-efficiency and energy-saving products specially designed for the new series of industrial steam boilers that have been updated and renovated. They are not only suitable for medium and low pressure boiler feed water, but also for high head water delivery in factories and cities.

　　The models of feedwater pumps for sub high pressure boilers are:

　　DG25-80*（3-12）

　　DG45-80*（3-12）

　　DG85-80*（3-12

　　DG150-100*（3-12）

　　DG45-120*（3-12）

　　DG120-130*（3-12）

　　DG150-130*（3-12）

　　Performance range of boiler feedwater pump:

　　Flow rate: Q=6-180m3/h

　　Head: H=50-660 m (medium low pressure) 409-1056 (secondary high pressure)

　　Structural type of DG85-80 * 9 multi-stage boiler feedwater pump:

　　The pump body and pump cover form the working chamber of the impeller, and there are pipe screw holes for installing vacuum and pressure gauges on the inlet and outlet flanges. The lower part of the pump body has pipe screw holes for discharging residual water.

　　The impeller is a single suction closed type, equipped with a balance plate to balance the majority of axial forces, and a thrust bearing to withstand the possible residual small amount of axial thrust. The arrangement of the bearings keeps the shaft in a stable pulling rod state. Before assembly, the impeller must undergo strict static balance verification to ensure smooth operation.

　　The pump shaft is supported by two Babbitt alloy sliding bearings, which are installed in the bearing body of the pump suspension and lubricated with thin oil.

　　A sealing ring is installed on the pump body, which can improve the volumetric efficiency of the pump and prevent high-pressure water from flowing back into the suction chamber, disrupting the inlet flow field and ensuring the suction performance of the water pump.

　　The shaft seal is generally a soft packing seal. When the water pump is working, a small amount of medium can be introduced to the packing box, or external cooling and lubricating water can be connected to serve as a water seal and cooling and lubricating function. According to the user's needs, the packing seal can be changed to a mechanical seal.

　　The pump casing can be disassembled axially at the axis, with the suction port of the DG type pump facing vertically upwards and the discharge port facing vertically upwards, perpendicular to the axis. From the direction of the drive end, the water pump rotates clockwise. According to user needs, it can also be produced to rotate counterclockwise. Users can specify this when placing an order.

　　The main component materials of DG85-80 * 9 multi-stage boiler feedwater pump are:

　　The general material is cast steel

　　Inlet and outlet sections: ZG230-450

　　Mid section: ZG230-450

　　Guide vane: ZG

　　Impeller: ZG230

　　Spindle: 40Cr

　　Sealing ring: QT450

　　Shaft sleeve: HT250

　　Balance disk: ZG2Cr13

　　Balance ring: Tin bronze

　　Rotation direction of DG85-80 * 9 multi-stage boiler feedwater pump:

　　From the motor end, the boiler feedwater pump rotates clockwise.

　　After sales service of Hunan Zhongda Energy saving Pump Industry Co., Ltd

　　1. Quality warranty period: According to national regulations, the warranty period for mechanical and electrical products is one year. During the warranty period, users will enjoy free services, lifetime paid services, and long-term provision of accessories.

　　2. Free technical consultation.

　　3. After sales service commitment: In areas where offices have been established, it takes 1-8 hours within the city, 1-24 hours within the province, 1-48 hours outside the province, and 72 hours to arrive and handle in areas with traffic congestion.

　　Horizontal multi-stage boiler feed pump related search: Boiler feed pump structure diagram Boiler feed pump multi-stage feed pump High pressure boiler feed pump Self balancing multi-stage pump Boiler feed control system Boiler feed pump model Multi stage boiler feed pump parameter description Multi stage boiler feed pump head

AfterSalesService :

• High pressure boiler feed pump