Efficient consumption and easy maintenance:
SEMHAI Engines offers a broad spectrum of diesel engines tailored for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and generators. Our engines come in a diverse range of power capacities, like the ION power ranging from 415 kW to 920 kW, and the ICXN power from 377 kW to 836 kW, fully compliant with ISO 3046-1 standards. Designed for driving centrifugal pumps at variable speeds, SEMHAI diesel engines optimize fuel consumption according to the specific propeller curve. Known for their robust and dependable performance, these engines deliver exceptional fuel efficiency, characterized by extended overhaul intervals and prolonged service lives. Our expertly engineered power density transforms SEMHAI diesel engines into adaptable and efficient energy solutions.
Performance features
1. With 3 types of perfect starting-functions:
(1). Manual start function: Achieved through a manual-automatic interlock using a switch, this function allows manual start-up.
(2). Automatic-manual functions: Enabling up to three start attempts, the system issues a 'starter failure alarm' and exits the start state if unsuccessful after three tries. The time to reach rated load start is 5-10-15 seconds, depending on unit capacity, after initial success.
(3). Emergency manual direct start function: In emergencies, a direct manual start is possible if the self-controlled device fails.
2. Automatic operation: On receiving a valid signal, if the pump fails to start due to power supply issues, the diesel fire pump engages automatically. Once the power supply normalizes or electric pumps function properly, it seamlessly switches back to the electric pump.
3. Automatic shutdown: The diesel fire-fighting pump will delay and automatically shut down when the fire signal ceases.
4. Battery self-charge function: The diesel engine's electrical mains power automatically charges the battery, ensuring the unit starts smoothly.
5. Perfect indicating system: The system provides comprehensive indicators for readiness to start, manual and automatic starts, unit operation, shutdown, battery charging, over-speed, various oil pressures, cooling system temperature, battery voltage, and fuel levels, as well as regular inspections.
6. Perfect alarm or protection system: Equipped with an advanced alarm and protection system, it alerts users to multiple issues such as start failures, over-speed, low oil pressures, high cooling water temperature, low lubricating oil temperatures, automatic charging device failures, and inconsistent battery voltages and fuel levels.
7. Perfect display systems: Displays critical metrics such as engine oil pressure, engine speed, battery charge current, and charging voltage.
8. Direct-coupled: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a common channel base, ensuring a compact structure, excellent overall performance, minimal failures and vibrations, and convenient on-site installation.
9. With high pressure and big flow capacity: Select from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series multistage pumps to cater to various fire protection needs.
10. Be adjustable of flow and working pressure: Equipped with mechanical or electronic speed governors, diesel pumps can adjust the engine speed, allowing modification of flow and working pressure to suit actual data requirements.
11. With pre-heating device of water temperature: The unit features an AC220V cooling water preheating device, ensuring normal operation even at temperatures below 5°C.
12. Double battery circuit: If one battery group fails, another automatically takes over, maintaining uninterrupted operation.
13. Maintenance-free battery: Eliminate the hassle of frequent supplemental fluid additions with our maintenance-free battery.
14. Automatic timing inspection test: Typically in standby mode, the system autonomously conducts device testing for standby readiness and issues timely warnings.
Note: Tailor your experience with our pump by selecting from a range of versatile functions, perfectly aligned with your unique requirements. We also offer bespoke design services to meet specific needs, ensuring a perfect fit for your application.
Selection configuration of diesel engine
1. The Pump: Choose from our expertly crafted range, including the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Experience unparalleled performance with our diesel engines, featuring internationally acclaimed brands. Options include single-cylinder, dual-cylinder, four-cylinder, and six-cylinder configurations, with speed capabilities of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Enhance your setup with our comprehensive range of accessories, including an advanced filtration system, effective silencer system, reliable cooling system, spacious fuel tank, versatile common channel base, practical base fuel tank, efficient radiator, powerful battery, and dependable charger.
4. The Control Cabinet: Equip your operation with cutting-edge technology, featuring SBC and PLC programming, state-of-the-art sensors, and an automatic control cabinet designed for seamless performance and ease of use.
| Engine Speed |
1500r/min; 1800r/min; 2400/min; 2800/min; |
| Engine power |
24HP-2220HP |
| Pump diameter |
50-500mm |
| Flow range |
10-2000L/s |
| Working pressure range |
0.2-2.2Mpa |
| Temperature range |
Ambient temperature ≤60'C; |
| Ambient atmospheric pressure |
> 90KPa |
| Transmission medium |
Water or other liquids physical and chemical properties similar to water; |
| Seal plumbing parts |
No installment when inlet pressure above 0.03Mpa (G) |
| Engine power selection |
Under non-normal conditions, diesel input power will be less than the rated power, it need to choice higher power diesel engine to support pump to ensure the normal operation |
Experience the renowned international diesel engine brands, featuring a diverse range of single-cylinder, two-cylinder, four-cylinder, and six-cylinder diesel engines. With a diverse speed spectrum of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, these engines are engineered for optimal performance.
SEMHAI's sturdy, professional-grade coupling adaptors are the ideal solution for seamlessly connecting diesel engines to drive pumps via a shaft.
These coupling adaptors effortlessly connect to a standard coupling, enabling a straightforward plug-in installation that requires no alignment tools. Crafted from polyamide nylon reinforced with fiberglass, they are torsionally rigid and maintenance-free. Perfect for hydrostatic drives in construction machines, harvesters, and forest machinery.
SEMHAI's Diesel Plus Fire Pump Controllers are meticulously engineered to command and oversee 12 or 24 volt diesel fire pump engines. These controllers stand as one of the most technically advanced solutions in diesel engine control technology.
Innovative Features
Adaptable Universal Supply Voltage ranging from 100Vac to 240Vac
Select with ease: Dual Output of 12 or 24 Vdc, made possible by a DIP Switch
Streamline your Communications with a USB Port / Drive
Effortlessly Transfer Data to and from portable USB Devices
Integrated Web Pages* for enhanced user experience
Instantly View Current Status, Data Values, Programmed Set Points, and Historical Data
Ethernet* Direct Connection for seamless Data Transfer with a Computer
RS485 Port* for robust connection options
MODBUS Communication * Note: COM Option must be ordered for this function
Introducing the New Large Capacity Dual Wall Diesel Subbase Generator Fuel Tank;
Our robust engine mounts are engineered to effectively isolate vibrations in marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Crafted from premium industrial-grade materials, they offer long-lasting service compared to cheaper alternatives, thereby extending the life of your equipment.
Our professional-grade gearboxes are expertly designed for direct mounting on diesel engines, capable of both accelerating and reducing speed across various applications. On the input side, we offer mounting options with either an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch.
Industry - Perfectly designed for boiler feed water systems and cooling systems, ensuring optimal efficiency and reliability in industrial operations.
Smelting - Expertly crafted for water circulation and cooling systems, maintaining a steady flow and superior cooling in smelting processes.
Fire-fighting - Essential for fire protection, powering fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems with precision and dependability.
Ocean - Ideal for wild water supply systems and island freshwater collection, providing a robust solution for oceanic water management needs.
Heating - Specifically designed for water circulation and cooling systems, offering exceptional performance in heating applications.
Municipal - Reliable in emergency settings, perfect for emergency drainage and water supply solutions, ensuring public safety and infrastructure resilience.
Agriculture - Designed for excellence in irrigation and drainage systems, supporting agricultural productivity and growth with unmatched efficiency.
Esteemed Professional Cooperation Agencies
Our esteemed company has forged robust, long-term partnerships with prominent domestic pump-testing institutions, ensuring top-notch quality and reliability. These collaborations include:
The National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City,
The distinguished Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City,
The renowned Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the prestigious Shanghai Mechanical and Electrical Products Quality Inspection Center, nestled in the bustling city of Shanghai, among others.
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