Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents a comprehensive range of robust diesel engines, meticulously engineered for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines boast a diverse array of power ranges, featuring ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all conforming to ISO 3046-1 standards. Specifically designed for driving centrifugal pumps at variable speeds, our engines ensure power consumption aligns perfectly with the respective propeller curve. These resilient SEMHAI diesel engines are renowned for their reliable and fuel-efficient performance, delivering exceptional efficiency through extended overhaul intervals and prolonged service life. Experience the optimized power density that transforms our diesel engines into indispensable, efficient, and flexible energy suppliers.
Performance Features
1. Equipped with Three Types of Outstanding Starting Functions:
(1). Manual Start Function: Seamlessly achieve manual-start functionality through manual-automatic interlocking via the switch.
(2). Automatic-Manual Functions: Allows for three starting attempts, issuing a 'starter failure alarm' and automatically exiting the starting state if unsuccessful after three attempts. Transition time to the rated load ranges from 5-10-15 seconds, depending on unit capacity, following a successful initial start.
(3). Emergency Manual Direct Start Function: Engage the emergency manual direct-start function if the self-controlled device encounters a failure.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump initiates automatic operation. In the event of power supply system interruptions or failures, the pump will automatically switch to operate on electric power once the supply returns to normal or the electric pumps can function properly.
3. Automatic Shutdown: The diesel fire-fighting pump will automatically delay and shut down when the fire signal ceases, ensuring safe and reliable operations.
4. Battery Self-Charge Function: The battery is designed to charge automatically using the diesel engine's electrical mains power, guaranteeing a seamless startup of the unit.
5. Comprehensive Indicating System: Stay informed with indicators for readiness to start, manual start, automatic start, unit operation, shutdown, battery charging, overspeed, low lubrication oil pressure, turbocharger oil pressure, engine lubricating oil temperature, cooling system water temperature, battery voltage levels, fuel level, and routine inspections.
6. Sophisticated Alarm and Protection System: Benefit from alarms or protection measures for failed start attempts, overspeed, low lubricant oil pressure, turbocharger oil pressure, elevated cooling water temperature, lubricating oil temperature, automatic charging device malfunction, battery voltage anomalies, and low fuel levels.
7. Advanced Display Systems: Monitor engine oil pressure, engine speed, battery charge current, and charging voltage with precision.
8. Direct-Coupled Design: Featuring a high-flexible coupling, the diesel engine and water pump are seamlessly integrated on a common channel base, offering a compact structure with superior performance, reduced failure rates, minimal vibration, and easy on-site installation.
9. High Pressure and Large Flow Capacity: Select from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps to accommodate diverse fire-fighting scenarios with precision.
10. Adjustable Flow and Working Pressure: Diesel pumps equipped with mechanical or electronic speed governors allow for adjustable engine speed, ensuring pump flow and head match actual requirements seamlessly.
11. Pre-heating Device for Water Temperature: This unit includes an AC220V cooling water preheating device, guaranteeing optimal functionality even at temperatures below 5ºC.
12. Double Battery Circuit: In case of battery failure, the secondary battery automatically activates to maintain uninterrupted operations.
13. Maintenance-Free Battery: Enjoy the convenience of a maintenance-free battery that eliminates the need for frequent supplemental fluid addition.
14. Automatic Timing Inspection Test: In the realm of fire safety, the system typically remains in a standby mode. Our cutting-edge unit is designed to autonomously perform device testing, ensuring that all standby conditions are optimally maintained. This proactive measure ensures that any issues are immediately flagged with timely warnings, keeping the system at peak readiness.
Note: The above-mentioned features can be tailored according to the specific preferences and needs of the user. We pride ourselves on offering bespoke solutions, crafting customized designs to meet unique requirements with precision and expertise.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our 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. Each model is engineered for excellence, providing superior performance and reliability.
2. The Diesel Engine:
Our range includes internationally renowned brands of diesel engines featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. With a speed range spanning 1500r/min, 1800r/min, 2400r/min, and 3000r/min, these engines deliver power and efficiency that are second to none.
3. Other Accessories: Equip your system with our comprehensive suite of accessories, including a high-performance filtration system, an advanced silencer system, a state-of-the-art cooling system, a robust fuel tank, a common channel base, a base fuel tank, a radiator, a reliable battery, and a sophisticated charger; each component is meticulously designed to enhance your system’s functionality.
4. The Control Cabinet: Our selection features the SBC, PLC programming, sensors, and an automatic control cabinet. These state-of-the-art technologies work in harmony to provide seamless operation and unparalleled control at your fingertips.
| 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 range features an internationally acclaimed lineup of diesel engines, including single-cylinder to six-cylinder variants. They boast impressive speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, offering unparalleled performance and reliability.
SEMHAI's robust and expertly crafted coupling adaptors provide seamless integration with diesel engines, efficiently driving pumps through a direct shaft connection.
Designed for convenience, these coupling adaptors connect effortlessly to standard couplings via a straightforward plug-in installation, eliminating the need for alignment tools. Fabricated from polyamide nylon reinforced with fiberglass, these adaptors are torsionally rigid and maintenance-free, making them ideal for hydrostatic drives in construction machines, harvesters, and forest machinery.
Experience cutting-edge technology with SEMHAI's Diesel Plus Fire Pump Controllers, engineered to control and monitor 12 or 24-volt diesel engines. These controllers stand at the forefront of diesel engine technology, offering unmatched precision and functionality.
Remarkable Features: Unveiling the innovative elements that make our products stand out.
Adaptive Universal Supply Voltage: Ranging from 100Vac to 240Vac, ensuring compatibility and reliability.
Dual Output Flexibility: Choose between 12 or 24 Vdc power with ease using the DIP Switch Selectable feature.
Seamless USB Connectivity: Easily interface and drive with our integrated USB Port.
Effortless Data Management: Transfer data seamlessly to and from portable USB devices, ensuring smooth operations.
Embedded Web Pages: Access a wealth of information at your fingertips with our intuitively designed embedded web pages.
Comprehensive Monitoring: Instantly view current status, data values, programmed set points, and historical data all in one place.
Efficient Ethernet Connectivity: Directly connect and transfer data with ease using our Ethernet capabilities.
Versatile RS485 Port: Enhance your communication capabilities with our dependable RS485 port.
MODBUS Communication Ready: Unlock advanced communication options with our optional COM feature, designed for MODBUS functionality.
Innovative Fuel Solution: Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, engineered for optimal performance.
Our premium engine mounts are designed to robustly isolate vibrations for marine and industrial engines, significantly reducing noise in both mobile and stationary equipment. Crafted from high-quality industrial-grade materials, these mounts ensure longevity, extending the life of your machinery.
Engineered for Excellence: Our professional gearboxes are designed for seamless direct mounting on diesel engines, offering versatile speed modulation solutions. On the input side, they accommodate SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch, delivering tailored performance to suit a variety of applications.
Industry - Our cutting-edge Advanced Water Pump for Fire Fighting with High Quality Cast Iron is perfect for applications such as boiler feed water systems and cooling systems, ensuring reliability and efficiency in harsh industrial environments.
Smelting - Elevate your smelting operations with our pump's exceptional capabilities in water circulation systems and cooling systems, delivering consistent performance and robust durability.
Fire-fighting - Experience unmatched fire protection with our advanced pump, ideal for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, tailored for high-pressure scenarios.
Ocean - Our pump excels in demanding oceanic environments, offering solutions for wild water supply systems and island freshwater collection systems, delivering reliability amidst the elements.
Heating - Perfect for both water circulation and cooling systems, our pump ensures optimal performance in heating applications, providing comfort and efficiency.
Municipal - Be prepared for emergencies with our pump's capability for emergency drainage and emergency water supply, ensuring your municipality's resilience and readiness.
Agriculture - Our pump is the ideal choice for agriculture, expertly handling irrigation and drainage systems, ensuring your crops receive the water they need efficiently and effectively.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. takes pride in having forged robust and lasting partnerships with an array of top-tier domestic pump-testing giants. These collaborations fortify our reputation and assure the excellence of our Advanced Water Pump for Fire Fighting with High Quality Cast Iron. Our esteemed allies include:
- The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in the vibrant Tiexi District of Shengyang city,
- The highly-regarded Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in the scenic Zhenjiang City,
- The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, situated in the bustling Chongqing city,
- The renowned Shanghai Mechanical and Electrical Products Quality Inspection Center, right in the heart of Shanghai city, among others.
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