Efficient Consumption and Hassle-Free Maintenance:
SEMHAI Engines proudly presents an extensive range of powerful diesel engines, meticulously engineered for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines are available in a diverse array of power ranges, encompassing ION power between 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all compliant with ISO 3046-1 standards. These engines are officially certified for powering centrifugal pumps at varying speeds, with power consumption perfectly aligned with the respective propeller curve. Renowned for their robustness, SEMHAI diesel engines are celebrated for their dependability and exceptional fuel efficiency, achieving superior performance with prolonged overhaul intervals and an extended service life. This optimized power density transforms our diesel engines into highly efficient and adaptable energy solutions.
Performance Features
1. Exceptional Starting Functions:
(1). Manual Start Function: Achieve manual start with a manual-automatic interlock enabled by a switch;
(2). Automatic-Manual Functions: Permits three attempts for starting; if unsuccessful, a 'starter failure alarm' is issued, and the system exits the starting mode. The rated load start time ranges from 5 to 15 seconds, contingent on unit capacity, post-successful initial start.
(3). Emergency Manual Direct Start Function: Facilitates manual direct start during emergencies if self-controlled devices fail.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump initiates automatically. If the pump fails to start due to power supply interruptions, it switches to electric pump operations once the supply normalizes.
3. Automatic Shutdown: The diesel fire-fighting pump will seamlessly halt operations automatically once the fire signal is no longer detected.
4. Battery Self-Charge Function: The battery recharges automatically via the diesel engine's electrical mains, ensuring the unit starts smoothly every time.
5. Comprehensive Indicating System: Includes indicators for readiness, manual and automatic start, unit operation, shutdown, battery charging, overspeed, and various low-pressure and low-temperature alerts ensuring optimal operation.
6. Advanced Alarm and Protection Systems: Offers alerts and protection against multiple failures such as unsuccessful starts, overspeed, low lubricant pressure, high cooling water temperature, charging issues, and more, ensuring reliable operation.
7. Complete Display Systems: Real-time monitoring of engine oil pressure, engine speed, battery charge current, and charging voltage for comprehensive oversight.
8. Direct-Coupled Design: Features a high-flexible coupling that connects the diesel engine and water pump on a common base, offering a compact structure with superior performance, minimal vibration, and ease of installation.
9. High Pressure and Large Flow Capacity: Equipped with IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series multistage pumps, catering to various fire-fighting scenarios with precision.
10. Adjustable Flow and Working Pressure: Diesel pumps with mechanical or electronic speed governors allow for speed adjustment, ensuring compatibility with actual pump flow and head requirements.
11. Pre-Heating Device for Water Temperature: Features an AC220V cooling water preheating device, ensuring reliable operation even in temperatures below 5ºC.
12. Double Battery Circuit: Automatically switches between battery groups in case of failure, guaranteeing continuous operation.
13. Maintenance-Free Battery: Designed to eliminate the need for frequent supplemental fluid, providing unrivaled convenience.
14. Automatic Timing Inspection Test: In the realm of fire safety, systems typically remain in standby mode. Thanks to our cutting-edge technology, our units autonomously perform device testing to ensure optimal standby condition, providing timely alerts for any anomalies detected.
Note: The above functions can be tailored to user specifications. We offer bespoke solutions, crafting customized designs to align perfectly with your unique requirements.
Selection Configuration of Diesel Engine
1. The Pump: Offering an array of choices, including the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump, our selection is engineered for excellence.
2. The Diesel Engine:
Featuring internationally renowned brands, our diesel engines come in single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. They offer a diverse speed range to meet your needs: 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Enhance system performance with our comprehensive accessories, including a state-of-the-art filtration system, efficient silencer system, advanced cooling system, robust fuel tank, common channel base, base fuel tank, high-performance radiator, reliable battery, and charger.
4. The Control Cabinet: Our control solutions feature SBC, PLC programming, sensors, and an automatic control cabinet, all designed to optimize performance and ensure seamless operation.
| 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 |
Explore our range of internationally renowned diesel engines, available in single, two, four, and six-cylinder configurations. These engines boast impressive speed capabilities: 1500r/min, 1800r/min, 2400r/min, and a robust 3000r/min.
Introducing SEMHAI's Durably Engineered Coupling Adaptors, crafted to seamlessly connect diesel engines with pump drives featuring a shaft, ensuring a flawless transmission of power.
Our coupling adaptors are designed for effortless plug-in installation with standard couplings, eliminating the need for alignment tools. Constructed from polyamide nylon reinforced with fiberglass, they provide torsional rigidity and are maintenance-free. Ideal for hydrostatic drives in construction machines, harvesters, and forestry machinery.
SEMHAI's Diesel Plus Fire Pump Controllers represent the pinnacle of technology, engineered to control and monitor 12 or 24-volt diesel fire pump engines. These controllers are among the most sophisticated available.
Distinguished Features
Adaptable Universal Supply Voltage ranging from 100Vac to 240Vac, ensuring versatile application.
Versatile Dual Output 12 or 24 Vdc, easily selectable via DIP Switch to suit your needs.
Enhanced Connectivity through USB Port for seamless data management and drive operations.
Effortlessly Transfer Data to and from a portable USB Device, enhancing data portability.
Integrated Web Pages for intuitive management*
Efficiently view current status, data values, programmed set points, and historical data with ease.
Direct Ethernet Connection for seamless data transfer and computer integration*
RS485 Port for expansive communication capabilities*
Advanced MODBUS Communication available with the optional COM function.*
Brand New Large Capacity Dual Wall Diesel Subbase Generator Fuel Tank; designed for performance and reliability.
Our robust engine mounts isolate vibrations in marine and industrial settings, significantly reducing noise. Crafted from premium industrial-grade materials, these mounts outlast cheaper alternatives, extending the lifespan of your equipment.
Our expertly designed gearboxes are tailored for direct diesel engine mounting, providing versatile speed modulation in various applications. Choose from an SAE housing and fixed coupling (Rubber Block Drive) or an adaptable BD or BDS clutch for input options.
Industry - Designed for optimal performance, this pump seamlessly integrates with boiler feed water systems and cooling systems, ensuring efficiency and reliability.
Smelting - Our pump excels in water circulation and cooling systems, providing consistent and effective cooling solutions for smelting operations.
Fire-fighting - Engineered for critical safety measures, this pump is integral to fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, offering unwavering protection.
Ocean - Perfectly suited for challenging environments, our pump supports wild water supply systems and the island freshwater collection system, delivering reliable water management.
Heating - This pump serves as a cornerstone for water circulation and cooling systems, ensuring dependable heating solutions across applications.
Municipal - In times of need, our pump provides essential support for emergency drainage and emergency water supply, proving its worth in municipal systems.
Agriculture - Specifically crafted for agriculture, it boosts irrigation and drainage systems, promoting thriving agricultural practices.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd., a pioneer in pump manufacturing, has forged steadfast partnerships with numerous eminent domestic pump-testing institutions, ensuring the highest standards of quality and reliability. These collaborations include:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City, renowned for its rigorous testing protocols,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, acclaimed for its precision and innovation in testing irrigation machinery products,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center situated in Chongqing City, a leader in agricultural pump inspection,
And the Shanghai Mechanical and Electrical Products Quality Inspection Center, right in the heart of Shanghai City, known for its thorough inspection and evaluation of mechanical and electrical products, among others.
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