1. Introduction: Diversified Installation Demands of Submersible Axial Flow Pumps
Modern water conservancy, industrial production and urban environmental protection projects rely on reliable fluid conveying equipment to deal with complex water volume and site conditions. As core equipment for flood control, drainage and industrial water circulation, large-flow pump and axial-flow pump systems have become indispensable infrastructure for municipal and industrial water treatment projects. Among all kinds of pumps, the submersible axial-flow pump stands out among industrial pumps because of its large flow, stable operation and flexible installation and is widely used in rainwater pumping stations and river diversion projects.
In the design of a traditional pumping station, vertical installation has always been the mainstream solution. However, with the increasingly compact space of modern engineering construction, diversified terrain conditions and stricter cost control requirements, horizontal installation technology has gradually become the first choice for engineering scenes with limited space. As a professional submersible pump manufacturer, Kairun Pump Industry has been focusing on optimizing the installation technology of horizontal pumps for a long time, solving multiple pain points of high civil engineering costs, large space occupation and difficult daily maintenance of traditional vertical pumps. This guide systematically analyzes the technical advantages, installation specifications, system integration schemes, and practical engineering values of horizontal axial flow pump horizontal installation technology, providing professional reference for industrial and municipal pump station construction and renovation.
2. The Unique Technical Advantages of Horizontal Pump Installation
The choice of pump installation mode directly determines the overall cost, operational stability, maintenance difficulty and service life of the pumping station. Compared with traditional vertical pump installation, the horizontal installation scheme of the submersible pump used in QH series products of Kairun Pump Industry shows outstanding adaptability in the scene of low head, large flow and limited space, which optimizes the hydrodynamic performance of axial flow pumps and mixed flow pumps to the greatest extent.
In terms of fluid performance, the optimized hydraulic structure of the horizontal axial-flow pump combines the dual advantages of axial thrust and radial pressure. Different from a single axial flow propeller pump, the mixed-flow impeller design balances flow rate and head performance effectively. Under the changing water inflow conditions, it provides a stable transportation capacity, which is fully adapted to the fluctuating water volume of municipal drainage and industrial circulating water systems. For low-head working conditions with a head range of 2 m to 22 m, horizontal installation avoids the efficiency attenuation problem of vertical pumps caused by excessive shaft length and hydraulic loss.
In terms of engineering adaptability, horizontal installation abandons the deep foundation pit structure needed by the vertical turbopump. In-line horizontal arrangement realizes direct installation on the ground, which is especially suitable for workshops and pump rooms with limited floor. Meanwhile, the rigid steel baseplate and precision vibration balancing design effectively reduce the vibration amplitude of horizontal operation, solving the stability problem of traditional horizontal pumps during high-flow operation. Compared with vertical installation, this method significantly improves the flexibility of on-site construction and the convenience of post-maintenance.
3. Main Installation Steps and Technical Specifications of the Horizontal Pump
Standardized installation technology is the core guarantee for the long-term and stable operation of vertical and horizontal pumps. Based on many years of engineering experience, Kairun Pump has summed up mature and standardized installation technology of centrifugal pump and axial flow pump, covering foundation construction, vibration reduction treatment, pipeline connection, supporting facility deployment, etc., which fully conforms to the industry safety and operation specifications.
The first step of installation of a horizontal pump is foundation construction. Unlike vertical pumps, which need deep foundation pit excavation and complex structural reinforcement, horizontal pumps only need a simple concrete foundation or steel-based frame fixation. The heavy-duty steel soleplate equipped with Kairun QH series pumps integrates the functions of vibration reduction and load bearing, which can effectively absorb the running vibration and ensure overall stability of the equipment. The second step is the shaft connection and calibration. The equipment is equipped with a flexible coupling structure, which can automatically compensate for the misalignment error of the tiny shaft caused by installation deviation, and avoid mechanical wear and noise during operation.
In terms of supporting facilities, professional hydraulic fittings are essential for the stable operation and daily maintenance of horizontal pumping stations. The inlet and outlet of the pumping station are equipped with stoplogs, gates and stoplogs, which can quickly cut off the water flow during equipment maintenance, overhaul and emergency stop, effectively avoiding water backflow and ensuring the safety of on-site operation. All installation processes strictly follow international and national standards, the motor performance conforms to IEC 60034: 2024 standard, and the water pressure test is carried out in accordance with GB/t 3216-2016 (equivalent to ISO 9906: 2012 standard) to ensure that the equipment performance and installation quality fully meet the industry specifications.
4. System Integration: Supporting Water Treatment and Conveying Solutions
As a professional industrial pump supply provider, Kairun Pump not only provides single horizontal pump equipment but also supports full-process system integration solutions for water treatment and fluid conveying projects, covering raw water pretreatment, sewage conveying, sludge treatment, and aeration oxygen supply, meeting the diversified needs of industrial and municipal water projects.
In the pretreatment process of sewage treatment plants, supporting mechanical grid screen, automatic grid screen and rotary grid screen equipment can effectively intercept large floating impurities such as branches and garbage in the water body, avoid impurity blocking the impeller of horizontal water pump and ensure the long-term stable water inlet conditions of the water pump unit. In the process of industrial sewage transportation, a series of sewage pumps are matched with horizontal main pump units to realize efficient transportation of domestic sewage and industrial wastewater.
Aiming at high viscosity and high wear conditions, such as industrial sludge and mortar, Kairun Pump is equipped with professional industrial sludge pumps and heavy submersible mud pump equipment. The wear-resistant hydraulic structure is suitable for complex medium transportation scenarios. In addition, supporting submersible aerators and pool aeration pump equipment can cooperate with the water circulation system to complete the oxygenation of the water body, improving the overall treatment efficiency of the water treatment system, and achieving full coverage of water engineering equipment.
5. Comparison of Performance Parameters of Kairun QH Series Horizontal Pumps
Kairun QH series horizontally installed mixed-flow pumps have stable and excellent quantitative performance indexes, and have obvious advantages compared with competing products in terms of flow rate, lift, installation cost and later maintenance. The following table summarizes the core performance and competitive advantages. All data are from official standard tests and actual engineering operation statistics.
| Performance Dimension | Kairun QH Series Horizontal Pump | Traditional Vertical Turbine Pump | Core Advantage |
| Maximum Flow Rate | Up to 4114.9 m³/h (500QH-135G) | 3200-3800 m³/h (same caliber) | Higher high-flow operating efficiency |
| Working Head Range | 2m – 22m | 5m – 30m | Better adaptability to ultra-low head scenarios |
| Civil Engineering Cost | 25% lower than vertical pumps | High, requiring deep foundation pit | Save $15,000-$30,000 in foundation construction |
| Annual Energy Consumption | Save 10,000 kWh (medium-sized pump station) | High energy consumption due to long shaft loss | Lower long-term operating costs |
| Maintenance Man-hours | 50% less than vertical pumps | Complex disassembly and maintenance | Horizontal structure for convenient inspection |
6. Brand Strength and Quality Advantages of Kairun Pump Industry
As a professional China pump manufacturers with independent research and production capacity, Kairun Pump has been deeply involved in the fluid equipment industry for many years, focusing on the research and development and customized production of high-quality pump products suitable for complex industrial and municipal conditions. The company has a professional technical team, advanced production equipment and perfect quality inspection systems, and all products have passed authoritative international and domestic standard certifications.
In terms of technology R&D, we independently developed the core hydraulic optimization mixed-flow impeller design and applied it to QH series horizontal pumps. This structure effectively improves the suction performance and hydraulic efficiency of the pump, making the equipment more adaptable to changing water inlet conditions than ordinary centrifugal pumps and axial-flow pumps. In terms of product quality, the abrasive slurry pump and high-lift fluid conveying equipment independently developed by the company adopt special wear-resistant materials and optimized structural design, which can adapt to corrosive and complicated water media containing impurities and prolong the service life of the equipment.
As a trustworthy industrial pumps company, Kairun Pump Industry provides one-stop customized services, including product design, site installation guidance and after-sales maintenance. Aiming at various submersible pump project scenarios such as municipal drainage, industrial circulating water, water conservancy and flood control, it can provide targeted pump system solutions and win long-term recognition from customers around the world.
7. Practical Engineering Case Analysis
In practical industrial engineering applications, axial-flow pumps and mixed-flow pumps, represented by Kairun horizontal mixed-flow pumps, have solved the pain points of many industries, such as limited construction space and high operation costs. A typical cooling water circulation project in a chemical plant fully verifies the practical value of the horizontal installation technology of the horizontal axial flow pump. The customer’s pain points are very prominent: the vertical space of the cooling water pump house in the factory is very limited, and it is impossible to install and excavate deep foundation pits for a traditional vertical pump. In addition, the circulating water medium contains slightly corrosive gas, which puts forward higher requirements for the stability and maintenance convenience of the equipment.
In view of this situation, Kairun Pump Industry customized a 500QH-50g horizontal mixed-flow pump solution, which is a classic product of China pump suppliers. The equipment is installed horizontally and in-line, and the inlet and outlet are on the same horizontal line, so it can be directly fixed on the ground without deep pit construction. At the same time, the optimized sealing structure and anti-vibration design adapt to the corrosive working environment and perfectly match the application requirements of industrial pumps in chemical scenes. After the project was put into operation, remarkable results have been achieved: the height of the pump room is saved by 3 meters, and the overall civil construction cost was reduced by 20%; The horizontal open structure greatly facilitates the daily equipment inspection and mechanical seal replacement, and reduces 50% of the daily maintenance man-hours. The equipment runs stably for a long time, which effectively reduces the total operation and maintenance costs of customers.
From the perspective of industry distribution, Kairun horizontal pump products are widely used in core fields: chemical treatment accounts for 40%, water treatment plants account for 35%, and HVAC cooling systems account for 25%, covering mainstream industrial and municipal fluid transportation scenarios such as sewage pumping stations and industrial circulating water systems.
8. Frequently Asked Questions
In order to help customers quickly solve problems of horizontal axial flow pump products in equipment selection, installation and daily operation, we have given authoritative and standardized answers to common technical problems according to product technical specifications and industry standards.
Q 1: Do you need a special foundation for the installation of the Kairun horizontal mixed-flow pump?
A 1: Yes, the equipment needs a simple concrete foundation or steel-based frame to bear the weight of the equipment and absorb the vibration during operation. However, compared with a vertical turbopump, which needs deep foundation pit excavation and complex structure reinforcement, the horizontal axial flow pump has a simpler foundation structure, lower construction difficulty and cost, and a shorter construction period.
Q 2: How does the horizontal axial flow pump realize self-priming operation?
A 2: If the equipment is installed below the water level, a horizontal axial flow pump can realize automatic self-priming operation without artificial water injection. If the installation height is higher than the water level, it is recommended to install the bottom valve and the starting device to exhaust the air from the suction pipeline to ensure the stable water absorption and normal operation of the pump unit.
Q 3: What extreme working conditions can the vibration control design of the horizontal pump adapt to?
A 3: The equipment adopts a precision dynamic balance impeller and integral rigid baseplate design, which can effectively suppress vibration generated during high-flow horizontal operation of industrial pumps. It is suitable for indoor limited space installation scenes, and can be equipped with optional drip cover accessories to adapt to humid and semi-open working environments and improve the safety of equipment operation.
9. Conclusion and Project Prospect
With the continuous upgrading of modern water conservancy and industrial water treatment projects, the horizontal installation technology of horizontal axial flow pump has become an indispensable optimal scheme for the construction of river pumping station and sewage pumping station because of its advantages of low cost, convenient maintenance, stable operation and strong adaptability to scenes. Different from traditional vertical pump installation, it breaks the space limitation of pumping station construction and reduces the life cycle cost of equipment, which has outstanding economic and engineering benefits.
In the future, with the increasing demand for compact and efficient industrial water equipment, horizontally installed mixed-flow and axial-flow pumps will be more widely used in municipal drainage, industrial cooling, water conservancy and flood control. As a professional sewage pump manufacturer and industrial fluid solution provider, Kairun Pump Industry will continuously optimize hydraulic design and product performance, and introduce more customized pump products with energy saving and high efficiency.
If you have customized project requirements for industrial wastewater pumps and horizontal pump systems, please contact Kairun Pump for a professional pump price list and a one-stop engineering solution to help your project reduce costs and improve efficiency.
