Efficient Consumption and Easy Maintenance:
SEMHAI Engines offers an extensive selection of robust diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Designed to cater to a wide range of power requirements, they come in ION power options from 415 kW to 920 kW or ICXN power from 377 kW to 836 kW, adhering to ISO 3046-1 standards. These engines have secured approval for driving centrifugal pumps at variable speeds, ensuring that power consumption aligns seamlessly with the propeller curve. Acclaimed for their dependable and fuel-efficient operations, these SEMHAI diesel engines excel with long intervals between overhauls and extended service lifespan. Their optimized power density transforms them into efficient and versatile energy providers, delivering unparalleled performance and adaptability.
Performance Features
1. Equipped with three superior starting functions:
(1). Manual Start Function: This feature allows for manual start, achieved through a manual-automatic interlock using a switch.
(2). Automatic-Manual Functions: Allows three startup attempts and issues a "starter failure alarm" if unsuccessful. It exits the starting state automatically. Upon a successful first-time start, the transition to full load occurs in 5, 10, or 15 seconds, depending on unit capacity.
(3). Emergency Manual Direct Start Function: Ensures manual direct starting during emergencies when the self-controlled device fails.
2. Automatic Operation: Upon receiving a valid signal, the diesel fire pump initiates automatically if the regular power supply is compromised. Once the power supply stabilizes, the system seamlessly switches back to the electric pump.
3. Automatic Shutdown: The diesel fire-fighting pump automatically delays and ceases operation once the fire signal is no longer active.
4. Battery Self-Charge Function: The system automatically charges the battery using the diesel engine's electrical mains, ensuring smooth and reliable starts for the unit.
5. Comprehensive Indicating System: Includes statuses such as ready to start, manual and automatic start, unit operation, shutdown, battery charging, and alerts for speeding, low oil pressure, high water temperature, low battery voltage, and more.
6. Advanced Alarm and Protection System: Offers protection and alarms for issues such as failed starts, overspeed, low lubricant pressure, high cooling water temperature, and battery voltage anomalies.
7. Detailed Display Systems: Provides real-time data like engine oil pressure, engine speed, battery charge current, and charging voltage, enhancing monitoring and maintenance.
8. Direct-Coupled System: Features a high-flexible coupling connecting the diesel engine and water pump. Its compact structure ensures excellent performance, reduced failures, minimal vibration, and easy on-site construction.
9. High Pressure and Large Flow Capacity: Choose from IS series single-stage, SOW series double-suction, or SHD series multistage pumps to meet diverse fire-fighting needs with unparalleled efficiency.
10. Adjustable Flow and Pressure: Diesel pumps come with mechanical or electronic speed governors, enabling adjustments to match pump flow and head with actual data requirements.
11. Water Temperature Pre-Heating Device: Equipped with an AC220V cooling water pre-heater, this device ensures optimal operation in environments with temperatures below 5 ºC.
12. Dual Battery Circuits: In case one battery fails, the system automatically switches to the alternate battery to maintain uninterrupted operation.
13. Maintenance-Free Battery: Designed for convenience, this battery requires no frequent addition of supplemental fluid, ensuring hassle-free maintenance.
14. Automatic Timing Inspection Test: Typically, the fire system remains in standby mode, but this unit smartly manages to automatically execute comprehensive device testing under standby conditions. It ensures timely alerts, providing peace of mind.
Note: The functionalities mentioned above are customizable, allowing you to handpick features that perfectly align with your specific requirements. We also offer bespoke design services to cater to unique specifications.
Selection Configuration of Diesel Engine
1. The Pump: Choose from a range of high-performance options 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.
2. The Diesel Engine:
Our line-up includes internationally renowned diesel engine brands, providing you with options from single-cylinder to six-cylinder models. Experience a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and up to 3000r/min.
3. Other Accessories: Enhance your system with an array of accessories: Filtration system, silencer system, advanced cooling system, fuel tank, common channel base, innovative base fuel tank, radiator, robust battery, and reliable charger.
4. The Control Cabinet: Benefit from state-of-the-art technology with SBC, advanced PLC programming, cutting-edge sensors, and a fully automatic control cabinet for superior operational efficiency.
| 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 |
The powerhouse of our offering, this internationally renowned diesel engine is available in a variety of configurations, including single, dual, four, and six-cylinder options. Experience the versatility with speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, tailored to meet your specific needs.
Our SEMHAI Robust Professional Coupling Adaptors are meticulously engineered to seamlessly connect diesel engines to pump drives via a shaft. This ensures a reliable and efficient transfer of power.
Experience hassle-free installation with our coupling adaptors, designed for easy plug-in connections using a standard coupling. No aligning tools are necessary. Constructed from polyamide nylon fortified with fiberglass, these adaptors are torsionally rigid and require zero maintenance. Ideal for hydrostatic drives in construction machines, harvesters, and forestry equipment.
The Diesel Plus Fire Pump Controllers by SEMHAI represent the pinnacle of control technology for 12 or 24-volt diesel fire pump engines. These controllers are at the forefront of technical advancement in diesel engine management.
Features
Designed for flexibility, the Universal Supply Voltage ranges from 100Vac to 240Vac, accommodating diverse electrical environments.
Customizable to your needs, our Dual Output is selectable via a DIP Switch, offering a choice between 12 or 24 Vdc.
Equipped with a Communications USB Port/Drive, facilitating seamless data interaction.
Effortlessly transfer data to and from a portable USB device for unparalleled convenience.
Embedded Web Pages* enable you to view current status, data readings, programmed set points, and historical data at your fingertips.
Monitor and analyze your system with ease, reviewing real-time status, valuable data values, and historical timelines.
Ethernet* connectivity allows for direct computer connections and smooth data transfers.
RS485 Port* available to enhance connectivity options.
MODBUS Communication* is available with the purchase of the COM Option, broadening communication capabilities.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for enhanced capacity and safety.
Our robust engine mounts are expertly crafted to dampen vibrations, whether for marine or industrial use. By reducing noise in both mobile and stationary equipment, our mounts—made from high-grade industrial materials—offer superior longevity, protecting your valuable machinery.
Our expertly engineered professional gearboxes are crafted for direct diesel engine mounting, providing speed manipulation for diverse applications. The input side is versatile, facilitating an SAE housing and fixed coupling (Rubber Block Drive) or a convertible BD or BDS clutch.
Industry - Our Advanced High Pressure Irrigation Pumps with Diesel Engine Power excel in industry applications, such as being an integral part of boiler feed water systems and cooling systems, ensuring optimal performance and efficiency.
Smelting - Designed for the demanding environments of smelting operations, our pumps provide robust support for water circulation systems and cooling systems, maintaining seamless operation in high-temperature conditions.
Fire-fighting - For fire-fighting purposes, our pumps are engineered to enhance efficiency and reliability in fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, offering unparalleled safety and performance.
Ocean - Perfectly suited for oceanic applications, our pumps are highly effective in wild water supply systems and island freshwater collection systems, ensuring a consistent and reliable water source even in challenging marine environments.
Heating - Our pumps are pivotal in the heating industry, providing dependable water circulation and cooling systems that ensure stable temperature control and enhanced system longevity.
Municipal - In the municipal sector, these pumps are vital for emergency drainage and emergency water supply, offering rapid response and superior adaptability in critical situations to safeguard infrastructure and communities.
Agriculture - Essential for agriculture, our pumps provide cutting-edge solutions for irrigation and drainage systems, promoting efficient water management and sustaining crop health across vast farmlands.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has proudly forged enduring partnerships with prominent domestic pump-testing institutions, including:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial based in Zhenjiang City,
The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, proudly located in Shanghai City, among others.
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