Efficient consumption and easy maintenance:
SEMHAI Engines presents a diverse selection of diesel engines meticulously designed for stationary applications, including centrifugal pumps, hydraulic systems, air compressors, and air generators. These engines boast an impressive range of power options, with ION power spanning from 415 to 920 kW, and ICXN power from 377 to 836 kW, all in strict adherence to ISO 3046-1 standards. Our engines are expertly certified for variable-speed centrifugal pump operations, aligning power consumption perfectly with each individual propeller curve. Renowned for their robust construction, SEMHAI diesel engines provide exceptional reliability and fuel efficiency, marked by extended service intervals and prolonged operational lifespan. This enhanced power density transforms our diesel engines into unparalleled, adaptable energy providers.
Performance features
1. Premium starting functions available in three distinctive modes:
(1). Manual start function: Seamlessly achieve manual start through an intuitive manual-automatic interlock switch;
(2). Automatic-manual functions: Experience the flexibility of three starting attempts with a "starter failure alarm" signaling if unsuccessful. The system automatically exits the starting sequence after three failed attempts. The transition to rated load occurs within 5-10-15 seconds, varying by unit capacity, after a successful initial start;
(3). Emergency manual direct start function: In the event of a self-controlled device failure, initiate an emergency start manually to ensure reliable performance.
2. Automated operation: In scenarios where the power supply system of the fire pump motor is interrupted or a phase failure occurs, and the pump cannot start normally, the diesel fire pump will automatically activate upon receiving a valid fire signal. Once normal power supply system resumes or electric pumps become operational, the system seamlessly switches back to the electric pump.
3. Automatic shutdown: The diesel fire-fighting pump intelligently delays and automatically shuts down once the fire signal ceases, ensuring operational safety and efficiency.
4. Self-charging battery function: Rely on the diesel engine's electrical mains power to automatically charge the battery, guaranteeing effortless unit startups every time.
5. Comprehensive indicating system: Stay informed with indicators for ready-to-start, manual start, automatic start, unit operation, unit shutdown, battery charging, overspeed warnings, low lubrication oil pressure, low turbocharger oil pressure, low lubricating oil temperature, high cooling water temperature, low battery voltage, and low fuel level, complemented by routine inspection notifications.
6. Advanced alarm and protection system: Safeguard your operations with alarms for failure after three starting attempts, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failure, low battery voltage, high battery voltage, and low fuel level.
7. Sophisticated display systems: Monitor crucial metrics easily, including engine oil pressure, engine speed, battery charge current, and battery charging voltage, ensuring optimal performance.
8. Direct-coupling innovation: Experience enhanced performance with a high-flexible coupling that seamlessly connects the diesel engine and water pump on a common channel base. This design ensures compact structure, superior overall performance, reduced failure and vibration, and facilitates convenient onsite installation.
9. High-pressure, large-flow capacity: Select from IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps to accommodate diverse fire scenario requirements with unmatched efficiency.
10. Adjustable flow and working pressure: Achieve precision with diesel pumps equipped with mechanical or electronic speed governors, allowing you to adjust the diesel engine speed for optimal pump flow and head alignment with actual data.
11. Water temperature pre-heating device: The unit is outfitted with an AC220V cooling water preheating device, ensuring seamless operation in temperatures as low as 5 ºC.
12. Dual battery circuit: Enjoy the reliability of an automatic system where a secondary battery is promptly activated upon any primary battery failure.
13. Maintenance-free battery: Benefit from a hassle-free experience with a battery that eliminates the frequent need for supplemental fluid additions.
14. Experience the future of safety with our Automatic Timing Inspection Test feature: Typically, fire systems remain in standby mode, but our unit revolutionizes this with an automatic device testing capability, ensuring your equipment is always ready and providing timely warnings for maximum preparedness.
Note: Flexibility is our forte! Choose from the above features to tailor-fit your specific requirements. We also offer bespoke design options to meet your unique specifications.
Selection Configuration of Diesel Engine
1. The Pump: Explore our versatile range including IS series single-stage single-suction pumps, the robust SOW series single-stage double-suction pumps, the high-capacity SHD series multistage segment pumps, and the efficient ZW horizontal self-priming centrifugal pumps.
2. The Diesel Engine:
Our diesel engines set the standard with international renowned brands offering a comprehensive range from single-cylinder to six-cylinder engines. Choose from various speed options: 1500r/min, 1800r/min, 2400r/min, and 3000r/min to match your specific application needs.
3. Other Accessories: Enhance your system with our high-performance accessories, including an advanced filtration system, a state-of-the-art silencer system, efficient cooling systems, durable fuel tanks, versatile common channel bases, base fuel tanks, reliable radiators, powerful batteries, and efficient chargers.
4. The Control Cabinet: Our control solutions are designed for precision with SBC, PLC programming, smart sensors, and an automatic control cabinet to ensure seamless operation and superior performance.
| 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 |
Our water pumps are powered by internationally renowned diesel engines, featuring configurations from single-cylinder to six-cylinder. They boast variable speed ranges including 1500r/min, 1800r/min, 2400r/min, and 3000r/min, delivering supreme flexibility and performance.
SEMHAI presents its durable and professional coupling adaptors, crafted to seamlessly connect diesel engines to drive pumps via a robust shaft connection.
These coupling adaptors provide a streamlined plug-and-play installation, eliminating the need for alignment tools. Constructed from polyamide nylon, strengthened with fiberglass, they offer torsional rigidity and require no maintenance. Perfectly suited for hydrostatic drives in construction, harvesting, and forestry machinery.
The Diesel Plus Fire Pump Controllers by SEMHAI are expertly designed to manage and oversee both 12 and 24-volt diesel fire pump engines. These controllers represent the pinnacle of advanced technology in diesel engine management.
Outstanding Features
Adaptable Universal Supply Voltage: 100Vac to 240Vac
Dual Output Capability: 12 or 24 Vdc, selectable via DIP Switch for tailored power solutions.
Effortless Data Management with USB Communication Port / Drive
Seamlessly transfer data to and from portable USB devices, ensuring quick and easy access.
Integrated Web Pages* for intuitive interface navigation.
Monitor real-time status, data values, programmed set points, and historical data through an intuitive viewing platform.
Ethernet* Enables direct computer connection and seamless data transfer.
RS485 Port* for reliable communication interactions.
MODBUS Communication* Note: COM Option is required for activating this feature.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed to optimize fuel storage capacity.
Our robust engine mounts are engineered to dampen vibrations in marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Crafted from superior industrial-grade materials, these mounts enhance equipment longevity by outlasting inferior alternatives.
Expertly crafted gearboxes provide direct mounting on diesel engines, offering speed adjustment capabilities for diverse applications. Featuring SAE housing with a fixed coupling or an optional switchable BD/BDS clutch on the input side, these gearboxes ensure optimal performance and adaptability.
Industry - Our High Quality Diesel Engine Driven Centrifugal Water Pump is indispensable in the industrial realm, providing exceptional support to boiler feed water systems and cooling systems. It ensures smooth, efficient operations and optimal temperature control for equipment.
Smelting - In the demanding environment of smelting, our pump excels at driving water circulation and cooling systems, maintaining the integrity of processes, and safeguarding equipment from heat stress.
Fire-fighting - Safety is paramount, and our centrifugal water pump is a vital component of fire-fighting systems. It powers fire hydrants, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, delivering reliable performance when it matters most.
Ocean - Whether for wild water supply systems or island freshwater collection, our pump stands resilient against the challenges of marine environments, ensuring consistent and dependable water access.
Heating - Essential for heating applications, this robust pump facilitates water circulation and cooling systems, contributing to efficient temperature regulation and energy savings.
Municipal - In municipal settings, our pump is crucial for emergency drainage and water supply, ready to tackle unexpected challenges with prompt action and reliable performance.
Agriculture - Designed to meet the demands of agricultural operations, our pump supports irrigation and drainage systems, promoting healthy crop growth and efficient water management.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. prides itself on its esteemed long-term partnerships with several premier domestic pump-testing authorities. These alliances fortify our commitment to excellence and quality assurance alongside industry leaders.
One such esteemed partner is the National Quality Supervision and Inspection Center of Industrial Pumps, strategically located in Tiexi District, Shengyang City, ensuring our products meet the highest standards.
Another collaboration involves the Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City, further exemplifying our dedication to superior irrigation solutions.
We are also aligned with the Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, reflecting our focus on agricultural excellence and innovation.
Moreover, our association extends to the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, reinforcing our unwavering commitment to top-tier quality and product reliability.
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