Brand Overview

Johnson Pump, founded in 1933 and headquartered in Stockholm, Sweden, specializes in the research, development, and manufacturing of fluid treatment equipment. Its products cover various types of pump bodies and accessories such as centrifugal pumps and internal gear pumps, serving multiple fields such as global industry, shipbuilding, and water treatment, providing fluid transportation solutions that meet practical needs.

2、 Core product features

（1） Efficient and energy-saving hydraulic performance

Multiple pump models adopt SPX FLOW's exclusive CFD (Computational Fluid Dynamics) optimized impeller design. The blade curvature and channel shape have been simulated and tested multiple times, and the water flow resistance is reduced by 15% -20% compared to traditional designs. The hydraulic efficiency can reach over 85%. Under rated operating conditions, when the same flow rate and head requirements are met, the energy consumption is 10% -15% lower than the industry average. Taking a centrifugal pump with a flow rate of 500m ³/h and a head of 30m as an example, running for 8000 hours per year can save about 30000 yuan in electricity costs, which meets the needs of green production. At the same time, by improving the dynamic balance accuracy of the impeller to G2.5 level and optimizing the rigidity of the pump shaft, the vibration speed during operation is controlled below 2.8mm/s, and the noise is ≤ 85dB, reducing the impact wear on the pipeline system.

（2） Adaptability to diverse working conditions

The product covers a wide range of performance ranges, with centrifugal pump flow rates extending from 0.5m ³/h to 2000m ³/h and head ranges from 10-200m. Single or multi-stage configurations can be selected according to demand; The internal gear pump is suitable for a flow rate of 0.041-250m ³/h, a pressure of 7-25bar, a medium viscosity upper limit of 80000mPa · s, and some models can withstand temperatures up to 300 ℃. For special scenarios, sewage centrifugal pumps with cutting impellers can handle media containing solid particles with a diameter of ≤ 50mm without the need for additional filtration pretreatment; The magnetic drive pump body can achieve leak free delivery and is suitable for toxic and harmful media scenarios. In addition, modular design enhances component interchangeability, enabling multiple pump variants to be covered with a small inventory, simplifying logistics and inventory management.

（3） Durable and reliable structural design

The material selection is highly customized, and ordinary clean water systems can use cast iron pump bodies with bronze impellers; The chemical acid and alkali medium transportation scenario provides a combination of 316 stainless steel pump body and ceramic bearings, which can withstand corrosive environments with pH values ranging from 1 to 14; In the field of food and medicine, 316L stainless steel and PTFE seals are used, with mirror polished inner walls (Ra ≤ 0.8 μ m), in compliance with FDA and EU 10/2011 standards, and supporting CIP online cleaning and SIP online sterilization. The sealing system adopts an innovative "clamp type" design, which allows for component replacement without disassembling the pump body, reducing maintenance time to one-third of traditional designs. The sealing components can be made of materials such as nitrile rubber and fluororubber according to the characteristics of the medium, and are suitable for oil, high temperature, or clean environments.

（4） Intelligent and convenient operation and maintenance support

Some models can be equipped with intelligent monitoring modules, which collect real-time data on flow, pressure, temperature, vibration, etc. through sensors and transmit it to the central control system or mobile end. When abnormalities such as impeller wear (flow rate decrease of 5%) and bearing overheating (temperature>80 ℃) occur, the system automatically alerts and provides maintenance recommendations. In unmanned remote pumping stations, the average repair time can be shortened to less than 2 hours. At the same time, some heavy-duty pump bodies adopt a front pull or rear pull structure, combined with pressure release channel design, which is not only convenient for maintenance and repair, but also can extend the service life of seals.

3、 Typical usage scenarios

（1） Ship and Ocean Engineering Field

As the main supplier of marine pumps, its products such as bilge pumps, deck flushing pumps, engine cooling pumps, etc. are widely used in various types of ships to meet the needs of bilge sewage discharge and equipment cooling. In marine engineering, centrifugal pumps made of duplex steel materials can withstand corrosion from chloride ions in seawater and have a service life of over 8 years. They can be used for seawater transportation in desalination projects; The internal gear pump is suitable for the transportation of ship fuel and lubricating oil, with strong self-priming ability and bidirectional conveying function to enhance operational flexibility.

（2） Industrial and chemical fields

In large chemical plants, centrifugal pumps are used for cooling water circulation systems, with high efficiency and energy-saving characteristics to reduce long-term operating costs; Heavy duty internal gear pumps (such as TopGear H series) comply with API 676 standards and can transport high-temperature media with a viscosity of up to 80000mPa · s (≤ 300 ℃). They are suitable for transporting chemical raw materials such as resins and solvents, and the heating jacket configuration can meet the temperature control requirements of special media. The sewage pump with cutting impeller is suitable for chemical wastewater treatment, which can directly transport sewage containing fibers and sediment, simplifying the pretreatment process.

（3） Food and pharmaceutical industry

Centrifugal pumps and internal gear pumps that meet hygiene standards have no hygiene dead corners on the inner wall, support online cleaning and sterilization, and can be used for transporting clean fluids such as milk and medicine. In the food production line, the low pulsation operation characteristic can prevent the formation of bubbles in sauces and other materials due to impact, ensuring uniform product texture; In pharmaceutical production, the combination of 316L stainless steel material and PTFE seals can avoid medium contamination and meet the strict requirements of drug production.

（4） Municipal and water treatment fields

Single stage centrifugal pumps are suitable for municipal water supply scenarios, with high flow characteristics to meet the water needs of residents and public facilities; Multi stage pumps, with their high head advantage, are used for secondary water supply in high-rise buildings, deep well drainage in mines, and other scenarios. In sewage treatment plants, sewage centrifugal pumps can be installed in the lifting section behind the grille to treat sewage containing solid impurities; In water treatment plants, magnetic driven centrifugal pumps are used for drug delivery, with leak free design to ensure safe operating environment.

（5） Agriculture and Horticulture

The dedicated Combibloc Horti series tightly coupled centrifugal pump is suitable for greenhouse irrigation, horticultural water and fertilizer transportation and other scenarios. Its compact structure is easy to install in greenhouse equipment with limited space. Its stable flow control capability can ensure irrigation uniformity, and the material's corrosion resistance is suitable for outdoor and water and fertilizer environments, reducing maintenance frequency.