Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents a versatile and extensive range of diesel engines specifically designed for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines offer a remarkable selection of power ranges, such as the ION power from 415 kW to 920 kW and the ICXN power from 377 kW to 836 kW, all meticulously crafted in compliance with ISO 3046-1 standards. These engines are expertly engineered to drive centrifugal pumps at variable speeds, ensuring power consumption aligns precisely with the respective propeller curve. Renowned for their robust construction, SEMHAI diesel engines deliver reliable, fuel-efficient operation that guarantees exceptional efficiency due to extended overhaul intervals and superior service life. This optimized power density transforms our diesel engines into exceptionally efficient and adaptable energy providers, meeting the diverse demands of your applications.
Performance features
1. With 3 types of perfect starting-functions:
(1). Manual start function: Achieve manual-start function effortlessly via manual-automatic interlock through the convenient switch;
(2). Automatic-manual functions: Enjoy the flexibility of 3 starting attempts, complete with a "starter failure alarm" if unsuccessful and automatic exit of the starting state after 3 failed attempts. The unit reaches its rated load within 5-10-15 seconds (depending on unit capacity size) after a successful initial start;
(3). Emergency manual direct start function: Facilitate emergency manual direct start when self-controlled device malfunctions through intuitive manual operation.
2. Automatic operation: Seamlessly activate the diesel fire pump when the pump unit receives a valid fire signal, ensuring that if the pump cannot start normally due to a power supply interruption or failure, it will automatically switch to the electric pump once the power supply system returns to normal, or the electric pumps become operational.
3. Automatic shutdown: Experience peace of mind with automatic shutdown functionality, as the diesel fire-fighting pump gracefully delays and shuts down automatically once the fire signal disappears.
4. The battery self-charge function: Depend on our technology to keep your battery charged automatically through the electrical mains power of the diesel engine, guaranteeing a smooth and reliable start of the unit every time.
5. Perfect indicating system: Stay informed and in control with our comprehensive indicating system, including readiness to start indicators, manual and automatic start signals, unit operation and shutdown notifications, battery charging status, speed monitoring, and alerts for low oil pressure, low turbocharger oil pressure, low oil temperature, high cooling system water temperature, low battery voltage, low fuel levels, and regular inspection reminders.
6. Perfect alarm or protection system: Feel secure with our advanced alarm and protection system, offering alerts for failure start attempts beyond 3 times, overspeed conditions, low lubricant oil pressure, turbocharger low oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failures, low and high battery voltage, and low fuel levels.
7. Perfect display systems: Benefit from our precise display systems, showcasing engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-coupled: Enjoy seamless integration with our high-flexibility coupling that connects the diesel engine and water pump on a common channel base, boasting a compact structure, outstanding overall performance, minimal failure and vibration, and convenient on-site installation.
9. With high pressure and big flow capacity: Select from our IS series single-stage single-suction, SOW series single-stage double-suction pump, and SHD series segmental multistage pumps to perfectly cater to the unique needs of diverse fire scenarios.
10. Be adjustable of flow and working pressure: Our diesel pumps are equipped with mechanical or electronic speed governors, allowing precise adjustments to the diesel engine speed when the pump flow and head differ from actual data, ensuring optimal performance.
11. With pre-heating device of water temperature: Trust our unit's integrated AC220V cooling water preheating device to guarantee efficient operation in environments with temperatures below 5 ºC.
12. Double battery circuit: Ensure uninterrupted power with our double battery circuit, which automatically activates the backup when one battery group fails.
13. Maintenance-free battery: Enjoy the convenience of a maintenance-free battery, eliminating the need for frequent supplemental fluid additions.
14. Automatic timing inspection test: Experience the reassurance of automatic testing for standby conditions, as our unit promptly completes device inspections and issues timely warnings, ensuring readiness within the fire system's standby mode.
Note: The above features can be tailored to meet diverse user requirements. We also offer bespoke designs to cater to specific needs, ensuring each solution is as unique as you are.
Selection Configuration of Diesel Engine
1. The Pump: Our selection includes the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the versatile SHD series multistage segment pump, and the efficient ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Featuring internationally renowned diesel engine brands, our options include single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations, with variable speed choices of 1500r/min, 1800r/min, 2400r/min, and 3000r/min to suit a range of applications.
3. Other Accessories: Enhance your system with a comprehensive array of accessories, including a sophisticated filtration system, advanced silencer system, efficient cooling system, robust fuel tank, common channel base, base fuel tank, radiator, battery, and charger for optimal performance.
4. The Control Cabinet: Equipped with SBC, PLC programming, state-of-the-art sensors, and an automatic control cabinet, providing seamless integration and control over your operations.
| 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 |
Featuring an international-renowned diesel engine, our robust machinery offers a variety of configurations including single, double, four, and six-cylinder options. With a flexible speed range spanning 1500r/min, 1800r/min, 2400r/min, and 3000r/min, this engine is engineered for superior performance.
SEMHAI presents its highly durable professional coupling adaptors, expertly crafted to seamlessly connect powerful diesel engines to dynamic drive pumps via a sturdy shaft.
Our coupling adaptors boast a plug-in installation that requires no alignment tools, ensuring simplicity and efficiency. Constructed from polyamide nylon fortified with fiberglass, they are torsionally rigid and entirely maintenance-free. Ideal for any hydrostatic drive in construction equipment, harvesters, and forestry machinery.
Meet the Diesel Plus Fire Pump Controllers by SEMHAI, meticulously designed to command and supervise 12 or 24-volt diesel fire pump engines. These controllers stand at the pinnacle of technology, representing the most advanced diesel engine control systems on the market today.
Outstanding Features
Adaptable Universal Supply Voltage ranging from 100Vac to 240Vac
Versatile Dual Output with 12 or 24 Vdc, easily selectable via DIP Switch
Integrated Communications USB Port / Drive for seamless connectivity
Effortlessly Transfer Data to and from portable USB Devices
Embedded Web Pages* for enhanced user interaction
Effortlessly View Current Status, Data Values, Programmed Set Points, and Usage History
Direct Ethernet* Connection for reliable data transfer with any computer
Equipped RS485 Port* for broad compatibility
MODBUS Communication * COM Option is necessary for this feature
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; designed for maximum capacity and safety.
Our premium engine mounts are designed to robustly isolate vibrations, thereby significantly reducing noise in both mobile and stationary equipment. Engineered with top-quality industrial-grade materials, these mounts outperform cheaper alternatives, thereby extending the lifespan of your equipment.
Our professional-grade gearboxes are precision-engineered for direct mounting on diesel engines, offering speed modulation for various applications. They feature an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side.
Industry - The heart of any boiler feed water system and integral to cooling systems, our cutting-edge pumps ensure seamless operation, offering unparalleled efficiency and reliability even in the most demanding industrial settings.
Smelting - Our pumps are the lifeline of water circulation and cooling systems in smelting operations, ensuring optimal thermal regulation and peak performance to keep processes running smoothly and safely.
Fire-fighting - Engineered for excellence, our pumps are vital to fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, delivering robust and reliable performance when it matters most, safeguarding lives and property.
Ocean - Ensuring a steady and reliable wild water supply system and empowering the island freshwater collection system, our pumps are designed to conquer the challenges of oceanic environments with unmatched precision and durability.
Heating - Our pumps redefine efficiency in water circulation and cooling systems for heating applications, providing a consistent and dependable flow that enhances system performance and ensures comfort.
Municipal - Our pumps are indispensable in municipal settings, offering rapid and efficient solutions for emergency drainage and emergency water supply, thus ensuring public safety and infrastructure resilience.
Agriculture - Serving as the backbone of irrigation and drainage systems, our pumps deliver reliable and efficient water management solutions, enabling bountiful harvests and sustainable agricultural practices.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. proudly maintains a robust network of enduring partnerships with several prestigious domestic pump-testing institutions. These collaborations ensure our products meet the highest standards of reliability and performance.
Our esteemed partners include the National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City, known for its rigorous and comprehensive pump evaluations.
We also work closely with the Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, ensuring our products excel in quality and efficiency.
In partnership with the Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, we guarantee that our pumps meet stringent agricultural standards.
Additionally, the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City is a key partner, reinforcing our commitment to excellence and innovation in pump technology.
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