Efficient Consumption and Easy Maintenance:
SEMHAI Engines presents an extensive array of diesel engines specially crafted for stationary applications, including centrifugal and hydraulic pumps, air compressors, and generators. These engines boast an impressive range of power options, spanning from ION power at 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all compliant with ISO 3046-1 standards. Approved for driving centrifugal pumps at variable speeds, these engines adhere to the respective propeller curve for optimal power consumption. Renowned for their robust performance and unparalleled fuel efficiency, SEMHAI diesel engines deliver outstanding reliability. Their long overhaul intervals and extended service life ensure cost-effective operation, making them efficient and adaptable energy providers.
Performance Features
1. Versatile Starting Functions with Three Options:
(1). Manual Start Function: Seamlessly transition between manual and automatic modes through a switch, granting you control over your startup process;
(2). Automatic-Manual Functions: Enjoy the convenience of three attempts at automatic startup. In the event of failure, a 'starter failure alarm' is triggered, and the system exits startup mode. Upon successful initiation, the rated load start time varies between 5-10-15 seconds, depending on unit capacity;
(3). Emergency Direct Manual Start Function: In critical situations, activate this feature to manually start the engine directly, overcoming any self-controlled device malfunctions.
2. Automatic Operation: The diesel fire pump springs into action automatically upon receiving a valid fire signal, even if the electric pump fails due to power supply issues. Once normal power supply resumes, the system effortlessly switches back to electric operation.
3. Automatic Shutdown: Following the vanishing of a fire signal, the diesel fire pump smartly delays and executes an automatic shutdown, ensuring safety and efficiency.
4. Battery Self-Charge Function: The battery is continuously charged via the engine's electrical mains power, guaranteeing a seamless and reliable start every time.
5. Comprehensive Indicating System: Stay informed with real-time indicators for ready status, manual and automatic start, unit operation, shutdown, battery charging, speed fluctuations, and critical alerts such as low oil pressure and high water temperature.
6. Advanced Alarm and Protection System: Safeguard your operations with alarms and protective measures against multiple start failures, overspeed, low lubricant pressure, high cooling water temperature, and battery voltage irregularities.
7. Sophisticated Display Systems: Monitor vital metrics like engine oil pressure, speed, battery charge current, and voltage with precision, ensuring optimal performance.
8. Direct-Coupled Efficiency: The diesel engine and water pump are seamlessly connected via a high-flexible coupling, ensuring compact structure, stellar performance, minimal vibration, and ease of on-site installation.
9. High Pressure and Large Flow Capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series multistage pumps to address diverse firefighting scenarios.
10. Adjustable Flow and Working Pressure: Tailor the operation with mechanical or electronic speed governors, adjusting diesel engine speed to match actual pump flow and head requirements.
11. Pre-Heating Device for Water Temperature: Featuring an AC220V cooling water preheating device, this unit guarantees smooth operation even in environments below 5 ºC.
12. Dual Battery Circuit: In case of one battery's failure, the other seamlessly takes over, ensuring uninterrupted operation.
13. Maintenance-Free Battery: Eliminate the hassle of frequent fluid top-ups with these reliable maintenance-free batteries.
14. Automatic timing inspection test: With the fire system often in standby mode, our state-of-the-art unit efficiently completes device testing for standby conditions. It provides timely warnings to ensure optimal safety and functionality.
Note: The aforementioned functions can be tailored according to your specific needs. We pride ourselves on offering customized designs to meet the precise requirements of our valued customers.
Selection configuration of diesel engine
1. The pump: Choose from our premium range including the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump. Each option promises reliability and efficiency for your irrigation needs.
2. The diesel engine:
Our diesel engines come from internationally renowned brands, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. These engines boast speeds ranging from 1500r/min to 3000r/min, providing versatile power solutions for diverse applications.
3. Other accessories: Complement your setup with our advanced accessories including a comprehensive filtration system, an effective silencer system, a robust cooling system, a durable fuel tank, a common channel base, a base fuel tank, a high-performance radiator, a reliable battery, and a charger.
4. The control cabinet: Featuring SBC, PLC programming, sensors, and an automatic control cabinet, our control systems ensure seamless operation and superior management of all processes.
| 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 power of esteemed international diesel engines, offering a variety of configurations including single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. With versatile speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, these engines are engineered for optimal performance.
SEMHAI presents its robust professional coupling adaptors, crafted for seamlessly connecting diesel engines to drive pumps via a shaft, ensuring reliability and efficiency in every operation.
Our coupling adaptors provide a hassle-free installation with their simple plug-in connectivity, eliminating the need for aligning tools. Constructed from polyamide nylon reinforced with fiberglass, they offer torsional rigidity and are maintenance-free. Ideal for hydrostatic drives in construction machinery, harvesters, and forestry equipment.
The Diesel Plus Fire Pump Controllers by SEMHAI are at the forefront of technology, designed to expertly control and monitor 12 or 24-volt diesel fire pump engines. These controllers represent the pinnacle of advanced diesel engine management.
Features
Universal Supply Voltage: A versatile range from 100Vac to 240Vac to suit various applications.
Dual Output: Flexible dual output at 12 or 24 Vdc, selectable through an easy-to-use DIP switch.
Communications USB Port / Drive: Equipped with a USB port for seamless data communication.
Transfer Data: Effortlessly transfer data to and from a portable USB device for ultimate convenience in data management.
Embedded Web Pages*: Access embedded web pages to view current status, data values, programmed set points, and historical data.
View with Ease: Monitor current status, data values, programmed set points, and history effortlessly.
Ethernet*: Enables direct connection and smooth data transfer with a computer, facilitating efficient data management.
RS485 Port*: Features an RS485 port for expanded connectivity options.
MODBUS Communication*: Integrate seamlessly with MODBUS communication, available with the COM option for enhanced functionality.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, engineered for superior capacity and safety.
Our premium engine mounts are meticulously designed to isolate vibrations in both marine and industrial settings, significantly reducing noise. Made with top-tier industrial-grade materials, they ensure durability and extend the lifespan of your equipment.
Professional gearboxes designed for direct diesel engine mounting, facilitating speed acceleration or reduction across diverse applications. Options include SAE housing with fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side.
Industry - From powering essential boiler feed water systems to enhancing the efficiency of cooling systems, our products are vital for industrial operations.
Smelting - Our pumps ensure optimal performance of water circulation and cooling systems, crucial for maintaining the integrity and safety of smelting processes.
Fire-fighting - Designed to meet the rigorous demands of fire safety, our pumps are integral to fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems.
Ocean - Our solutions are engineered to support the wild water supply systems and facilitate freshwater collection for island communities, ensuring reliability and sustainability.
Heating - Essential for the smooth operation of water circulation and cooling systems, our pumps are pivotal in delivering efficient and effective heating solutions.
Municipal - Our pumps are tailored for quick response in municipal settings, providing emergency drainage and reliable emergency water supply when needed most.
Agriculture - Our advanced pumps are designed to optimize irrigation and drainage systems, supporting the agricultural sector with efficiency and reliability.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with several prestigious and large-scale domestic pump-testing institutions, including:
The renowned National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City,
The highly respected Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City,
The acclaimed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center based in Chongqing City,
The distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among others.
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