Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents an extensive range of high-performance diesel engines meticulously designed for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. These engines cater to a wide spectrum of power needs, offering ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, conforming to ISO 3046-1 standards. Expertly engineered for driving centrifugal pumps at variable speeds, these engines optimize power consumption based on the propeller curve. Renowned for their robust construction, SEMHAI diesel engines for pump drives deliver unparalleled reliability and fuel-efficiency, with extended service intervals and impressive longevity. This results in an optimized power density, transforming our diesel engines into exceptionally efficient and versatile energy sources.
Performance Features
1. Equipped with 3 Innovative Starting Functions:
(1). Manual Start Function: Achieve seamless manual-start functionality through manual-automatic interlocking via the switch;
(2). Automatic-Manual Functions: Offering 3 attempts for automatic starts, it triggers a 'starter failure alarm' and exits the start mode automatically if unsuccessful. Achieve rated load start within 5-10-15 seconds (depending on unit capacity) after the initial start.
(3). Emergency Manual Direct Start Function: Facilitates manual emergency direct start in instances where automatic device controls fail.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump automatically initiates operation if the fire pump motor's power supply is interrupted or faulty. Securely switches back to electric pump mode when normal power supply resumes or when electric pumps are operational.
3. Automatic Shutdown: The diesel fire-fighting pump gracefully delays and shuts down automatically when the fire signal ceases.
4. Self-Charging Battery Function: The battery automatically recharges via the diesel engine’s electrical mains power, ensuring consistent readiness for smooth startup.
5. Comprehensive Indicating System: Status indicators for ready-to-start, manual start, automatic start, operational status, shutdown, battery charging, speeding, low oil pressure (lubrication and turbocharger), engine lubricating oil temperature, high cooling system temperature, low battery voltage, low fuel level, and routine inspections.
6. Advanced Alarm and Protection System: Includes alarms and protections for start failures, overspeed, low lubricant oil pressure, low turbocharger pressure, high cooling water temperature, low lubricating oil temperature, charging device failures, low/high battery voltage, and low fuel level.
7. Superior Display Systems: Monitor engine oil pressure, engine speed, battery charge current, and battery charging voltage with precision.
8. Direct-Coupled Design: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a common channel base, boasting a compact structure, superior performance, reduced failures, minimal vibrations, 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 segmental multistage pumps to perfectly suit diverse fire protection scenarios.
10. Adjustable Flow and Working Pressure: Diesel pumps equipped with mechanical or electronic speed governors adjust the diesel engine's speed, aligning pump flow and head with actual data seamlessly.
11. Pre-Heating Water Temperature Device: Equipped with an AC220V cooling water preheating device, ensuring optimal operation even in environments as low as 5 ºC.
12. Dual Battery Circuit: In case of battery failure, a secondary battery automatically takes over, ensuring uninterrupted operation.
13. Maintenance-Free Battery: Designed for convenience, this battery requires no frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: In the realm of fire safety, staying prepared is paramount. Our system is typically in standby mode, ready to spring into action. It conducts automatic inspections to ensure all equipment is functioning optimally, providing timely alerts to maintain readiness at all times.
Note: Tailoring our offerings to suit your unique needs is our priority. The aforementioned functionalities can be selectively incorporated based on your requirements. Moreover, we specialize in custom designs to meet your specific operational demands.
Selection Configuration of Diesel Engine: Choose the ideal diesel engine configuration that matches your operational needs with precision.
1. The Pump: Discover the efficiency of our pump series. Choose from the IS series single-stage single-suction pumps, SOW series single-stage double-suction pumps, SHD series multistage segment pumps, or the ZW horizontal self-priming centrifugal pump for unmatched performance.
2. The Diesel Engine: Experience ultimate power and reliability with our diesel engine options.
Our diesel engines are sourced from internationally acclaimed brands, featuring configurations like single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. Enjoy a diverse speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min to suit varied operational requirements.
3. Other Accessories: Enhance your setup with our comprehensive line of accessories, including advanced filtration systems, noise-reducing silencers, efficient cooling systems, durable fuel tanks, versatile common channel bases, base fuel tanks, reliable radiators, batteries, and chargers.
4. The Control Cabinet: Our advanced control cabinet solutions, featuring SBC, PLC programming, sensors, and automatic control systems, offer unparalleled control and efficiency for seamless 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 |
Our international suite of renowned diesel engine brands offers an extensive range of power options, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder models, with versatile speed ranges including 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
SEMHAI presents rugged, professional-grade coupling adaptors, meticulously crafted to connect diesel engines seamlessly to drive pumps. These adaptors ensure optimal transmission with a trusted shaft connection.
These coupling adaptors are engineered for effortless plug-in installation, aligning effortlessly without the need for tools. Constructed from polyamide nylon fortified with fibreglass, they promise torsional rigidity and a maintenance-free experience. Perfect for any hydrostatic drive in construction machines, harvesters, and forestry equipment.
The advanced Diesel Plus Fire Pump Controllers from SEMHAI offer unmatched precision in controlling and monitoring 12 or 24-volt diesel fire pump engines, standing out as some of the most sophisticated controllers in the industry.
Features
Versatile Universal Supply Voltage ranging from 100Vac to 240Vac, accommodating various power requirements with ease.
Dual Output capability, offering a choice between 12 or 24 Vdc, easily selectable via a user-friendly DIP switch.
Integrated Communications USB Port / Drive enabling seamless data management.
Effortlessly Transfer Data to and from portable USB devices, ensuring smooth and efficient data handling.
Embedded Web Pages*
Conveniently View Current Status, Data Values, Programmed Set Points, and comprehensive History directly online.
Ethernet* Direct Connection / Data Transfer with a Computer, facilitating quick and effective communication.
RS485 Port*
MODBUS Communication * The COM Option must be ordered to enable this advanced function, enhancing connectivity.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed to optimize fuel storage and efficiency.
Our robust engine mounts effectively isolate vibrations, reducing noise in both marine and industrial settings. Crafted from premium industrial-grade materials, these mounts promise longevity and enhance the lifespan of your equipment.
Our professional gearboxes are expertly designed for direct mounting on diesel engines, providing flexibility in speed modulation. Features include SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for dynamic applications.
Industry - Specialized applications include the boiler feed water system and advanced cooling systems, where reliability and efficiency are paramount.
Smelting - Our pumps excel in the water circulation and cooling systems, ensuring optimal performance even in the challenging environments of smelting operations.
Fire-fighting - Designed for the utmost reliability and effectiveness, our pumps support fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, making them indispensable for fire-fighting scenarios.
Ocean - Our pumps are essential for wild water supply systems and the island freshwater collection systems, providing dependable solutions for oceanic and island applications.
Heating - Perfectly engineered for water circulation and cooling systems, our pumps ensure consistent and efficient heating solutions.
Municipal - Equipped to handle emergency drainage and water supply needs, our pumps are crucial for municipal applications, offering rapid response and reliability.
Agriculture - Tailor-made for irrigation and drainage systems, our pumps offer efficient water management solutions to support agricultural productivity and sustainability.
Strategic Partnerships with Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated robust, long-term partnerships with several prominent domestic pump-testing institutions to ensure unparalleled product excellence, including:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City.
The distinguished Irrigation Machinery Products Quality Inspection Center of Machinery Industrial situated in Zhenjiang City.
The prestigious Ministry of Agriculture, Water Pump Quality Supervision and Testing Center based in Chongqing City.
The renowned Shanghai Mechanical and Electrical Products Quality Inspection Center right here in Shanghai City, among others.
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