Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents an extensive array of high-performance diesel engines, tailored meticulously for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines span diverse power spectrums, featuring ION power ranging from 415 kW to 920 kW or ICXN power from 377 kW to 836 kW, all meticulously crafted to meet ISO 3046-1 standards. Perfectly engineered for variable speed centrifugal pump applications, these engines ensure power consumption aligns precisely with the respective propeller curve. Renowned for their robust build, SEMHAI diesel engines for pump drives stand out with their unwavering reliability and exceptional fuel efficiency. Their superior engineering guarantees long overhaul intervals and a prolonged service life, delivering optimized power density that transforms our diesel engines into dynamic, efficient, and versatile energy providers.
Performance features:
1. With 3 types of exceptional starting functions:
(1). Manual start function: Enjoy the convenience of manual-start capabilities, achieved effortlessly through manual-automatic interlock via a switch;
(2). Automatic-manual functions: Offers flexibility with up to three starting attempts. In the event of an unsuccessful start after three tries, a 'starter failure alarm' is triggered, and the system exits the starting state. Rated load start time ranges between 5-10-15 seconds depending on unit capacity after a successful initial start;
(3). Emergency manual direct start function: Ensure operational continuity with the emergency manual direct start function, designed to be utilized when self-controlled devices encounter failures.
2. Automatic operation: Seamlessly transitions to automatic operation when a valid signal is received. The diesel-powered fire pump automatically activates if the fire pump motor's power supply system is disrupted due to interruptions or failures. Once the power system stabilizes, or if electric pumps become operational, it smoothly switches back to the electric pump.
3. Automatic shutdown: Secure peace of mind as the diesel firefighting pump intelligently delays and automatically shuts down upon the disappearance of the fire signal.
4. The battery self-charge function: Enjoy the autonomy of automatic battery charging powered by the diesel engine's electrical mains, ensuring a reliable start every time.
5. Comprehensive indicating system: Stay informed with a sophisticated indicating system that provides real-time status updates. Features include readiness to start, manual start, automatic start, unit operation, shutdown, battery charging, speed alerts, low oil pressure for both lubrication and turbocharger, low oil temperature, high cooling system water temperature, battery voltage, fuel levels, and regular inspection alerts.
6. Advanced alarm and protection system: Protect your operation with an advanced system that alerts or activates protection measures for various conditions. These include failure to start after three attempts, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failure, and battery voltage irregularities.
7. Enhanced display systems: Gain clear insights with detailed displays of engine oil pressure, engine speed, battery charge current, and battery charging voltage to monitor performance effectively.
8. Direct-coupled configuration: Experience the advantages of a direct-coupled design where the diesel engine and water pump are interconnected through a high-flexible coupling on a common channel base. This compact structure ensures superior overall performance, minimal failures, reduced vibrations, and simplified on-site installation.
9. High pressure and large flow capacity: Choose from our selection of IS series single-stage single-suction pumps, SOW series single-stage double-suction pumps, and SHD series segmental multistage pumps, all engineered to meet diverse firefighting demands effectively.
10. Adjustable flow and working pressure: Achieve precise control with diesel pumps equipped with mechanical or electronic speed governors, allowing for easy adjustment of diesel engine speed to align pump flow and head with actual data.
11. Water temperature pre-heating device: Ensure optimal operational conditions with an AC220V cooling water pre-heating device, designed to maintain functionality even in environments below 5 ºC.
12. Dual battery circuit: Benefit from the reliability of a dual battery circuit. If one battery fails, the other seamlessly takes over, ensuring uninterrupted operation.
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: The fire system, typically in standby mode, is equipped with advanced technology to autonomously conduct device testing, ensuring optimal standby readiness and prompt issue alerts.
Note: Tailor these functions to your preferences, as we offer flexible options. We are also adept at crafting bespoke designs to cater to your unique specifications.
Selection Configuration for Diesel Engine:
1. The Pump: Choose from a range of expertly engineered options including the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, SHD series multi-stage segment pump, and ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Renowned international diesel engine brands offer versatility with configurations such as single-cylinder, two-cylinder, four-cylinder, and six-cylinder engines, featuring speed capabilities of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Our comprehensive suite includes a filtration system, silencer system, cooling system, fuel tank, common channel base, base fuel tank, radiator, battery, and charger for a complete setup.
4. The Control Cabinet: Featuring SBC, PLC programming, sensors, and an automatic control cabinet for seamless operational management.
| 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 |
Immerse yourself in the world of renowned diesel engine brands! Boasting an array of configurations from single to six-cylinder setups, our engines offer a dynamic speed range including 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring optimal performance across various applications.
SEMHAI's robust and expertly crafted coupling adaptors are the pinnacle of engineering, seamlessly connecting diesel engines to pump drives with unparalleled precision and reliability.
Experience the simplicity of our coupling adaptors, designed for effortless plug-in installation with no alignment tools needed. Constructed from high-strength polyamide nylon reinforced with fibreglass, they offer torsional rigidity and are virtually maintenance-free. Ideal for hydrostatic drives in construction, harvesting, and forestry machinery.
SEMHAI presents the Diesel Plus Fire Pump Controllers, the epitome of advanced technology for managing and monitoring 12 or 24 volt diesel fire pump engines, setting a new standard in diesel engine control.
Features
Adapt to any environment with our Universal Supply Voltage accommodating 100Vac to 240Vac, ensuring seamless functionality worldwide.
Select your power output effortlessly with our Dual Output feature, offering 12 or 24 Vdc, easily configurable via DIP Switch.
Stay connected with the Communications USB Port / Drive, enabling seamless integration and data transfer.
Effortlessly transfer data to or from portable USB Devices, simplifying your data management tasks.
Embedded Web Pages*
Access a wealth of information with ease, including current status, data values, programmed set points, and historical data through our intuitive web interface.
Ethernet* Direct Connection / Data Transfer with a Computer
RS485 Port*
MODBUS Communication * Note: COM Option must be ordered for enabling this function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for maximum efficiency and safety.
Our premium engine mounts are expertly crafted to isolate vibrations, significantly reducing noise in both marine and industrial settings. Utilizing top-grade industrial materials, these mounts ensure extended service life, ultimately enhancing the longevity of your equipment.
Our professional-grade gearboxes are engineered for seamless mounting on diesel engines. Perfect for speed modulation, these gearboxes can accommodate an SAE housing with a fixed coupling or a switchable BD/BDS clutch for a versatile range of applications.
Industry - Perfectly designed for boiler feed water systems and cooling systems, ensuring seamless operation and efficiency in industrial settings.
Smelting - Expertly integrates with water circulation and cooling systems, providing reliable solutions for smelting operations.
Fire-fighting - Engineered for excellence in fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, ensuring safety and rapid response in emergencies.
Ocean - Tailored to support wild water supply systems and island freshwater collection, delivering robust performance in maritime environments.
Heating - Optimized for water circulation and cooling systems, enhancing the efficiency and reliability of heating solutions.
Municipal - Vital for emergency drainage and emergency water supply, providing critical support to municipal infrastructure.
Agriculture - Designed to meet the demands of irrigation and drainage systems, ensuring productive and efficient agricultural operations.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has established robust and enduring partnerships with several leading pump-testing institutions across the nation, ensuring the utmost reliability and performance for our products.
Among these prestigious collaborations is the National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City.
We are also associated with the esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City.
Furthermore, our cooperation extends to the Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City, reflecting our commitment to superior quality.
Our alliances are further strengthened by working with the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among other notable institutions.
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