KD/KTD series multi-stage centrifugal pump
KD series pumps are horizontal, multi-stage, segmented structure centrifugal pumps. They are designed and manufactured according to API610 specifications and comply with API610 BB4 pump type.
KTD series pumps are horizontal, multi-stage, double-shell, built-in segmented inner shell structure centrifugal pumps. They are designed and manufactured according to API610 specifications and comply with API610 BB5 pump type.
KD/KTD series multi-stage centrifugal pump
This series of pumps is suitable for high-pressure transportation of petrochemical, chemical processes and other chemical industry products that do not contain solid particles. It is not suitable for the transportation of abrasive liquids. This series of pumps are mainly used in petroleum transportation and refining, petrochemical industry, chemical industry, coal processing industry, paper industry, electrical industry, refrigeration engineering, pipeline pressurization and other industries.
- Model Description
- Structural features
- structure diagram
KD(KTD)120-120×10
K——The first letter of the pinyin of Kaiquan
D——The name of this series of single shell multi-stage pumps
TD——The name of this series of double-casing multi-stage pumps
120——Flow rate (m³/h)
120——single stage lift (m)
10 – series
- This series of pumps is centrally supported, with the suction port and discharge port pointing vertically upward.
- Mechanical seal cooling chamber. There is an optional water-cooling jacket outside the shaft seal cavity. The water-cooling jacket must be equipped with special requirements or when the temperature of the conveying medium is water exceeds 80°C, and the temperature of hydrocarbons exceeds 120°C.
- The impeller is cast as a whole.
- The axial force is balanced through the structure of the balance plate and the balance drum. The residual axial force is borne by the thrust bearing, and the radial force is borne by the bearing bush. In order to facilitate pump maintenance, this series of pumps adopts flexible diaphragm coupling components. For safety reasons, the coupling components are also equipped with coupling covers.
- The pump rotor consists of an impeller, balance plate and other parts mounted on the shaft. The impeller is hot-installed onto the shaft in sequence. Both ends of the pump are composed of radial bearings and thrust bearings with a four-oil wedge structure that are forcedly lubricated. The thrust bearings are bidirectional oil-injection forced circulation lubrication, and are equipped with temperature protection and monitoring instruments. The axial force is balanced by a balancing device, and the remaining axial force and additional axial force generated under special working conditions are borne by the thrust bearing.
KD type multi-stage centrifugal pump structure diagram
- Suction section 2. Discharge section 3. Middle section 4. Sealing box body 5. Guide vane 6. Final guide vane 7. Housing sealing ring 8. Guide vane sealing ring 9. Balance sleeve 10. Balance plate 11. Bearing body 12 .Bearing gland 13. Mechanical seal 14. Impeller 15. Shaft
Pump materials: can be selected according to API standards or user requirements.
KTD type multi-stage centrifugal pump structure diagram
- Barrel body 2. Pump cover 3. Middle section 4. Sealing box body 5. Balance return water 6. Guide vane 7. Final guide vane 8. Shell sealing ring 9. Guide vane sealing ring 10. Balance sleeve 11. Balance plate 12. Bearing body 13. Bearing gland 14. Mechanical seal 15. Impeller 16. Shaft 17. Drainage part 18. Suction box body 19. Deflector 20. Wrap pad
Pump materials: can be selected according to API standards or user requirements.
- The suction pipe and discharge pipe are arranged vertically upward and supported by the horizontal center.
- The pump has high pressure bearing, good safety, high average efficiency and low energy consumption. It is the first choice for ideal energy-saving products.
- The pump has good cavitation performance, which is unmatched by other similar products.
- The performance range of the pump is very wide. The flow rate Q can reach a maximum of 750m³/h, and the lift H can reach a maximum of 2000m. Moreover, the flow rate and lift of the pump products are closely spaced, which provides convenience for users to select pumps.
- The material selection of the pump flow parts can be configured according to API standard materials according to the requirements of the working conditions, or the materials can be selected according to the user’s requirements.
- Our company has obtained ISO9001 2000 quality system certification. The entire process of product design and manufacturing has a strict quality control system, and product quality is fully and reliably guaranteed.
Discharge pressure (p): 6-20MPa.
Performance range:
Flow rate Q=30~750m³/h
Lift H=600~2000m
Working temperature (t): KD: 0~150℃
KTD: 0~210℃
Standard speed (n): 2950r/min
This series of pumps is suitable for high-pressure transportation of petrochemical, chemical processes and other chemical industry products that do not contain solid particles. It is not suitable for the transportation of abrasive liquids. This series of pumps are mainly used in petroleum transportation and refining, petrochemical industry, chemical industry, coal processing industry, paper industry, electrical industry, refrigeration engineering, pipeline pressurization and other industries.