Efficiency in Consumption & Maintenance Ensured:
SEMHAI Engines proudly presents an extensive range of high-performance diesel engines specifically designed for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and generators. These engines offer power ranges like ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, compliant with ISO 3046-1 standards. Designed to drive centrifugal pumps efficiently at variable speeds, these engines align seamlessly with their respective propeller curves, delivering reliable and fuel-efficient operations. The robust construction of SEMHAI diesel engines guarantees long-lasting performance with extended overhaul intervals, making them the epitome of efficiency and flexibility in energy supply.
Performance Features That Lead the Industry
1. Three Types of Exceptional Starting Functions:
(1). Manual Start Function: Seamless switch-operated manual-automatic interlock allows for hassle-free manual start.
(2). Automatic-Manual Functions: Offers three attempts to start automatically. If unsuccessful, a 'starter failure alarm' is triggered, exiting the starting state. Post first successful start, the time to reach rated load varies from 5 to 15 seconds depending on unit capacity.
(3). Emergency Manual Direct Start Function: In emergencies, manually direct start the engine when the self-controlled device encounters issues.
2. Automatic Operation Excellence: Upon receiving a valid fire signal, the diesel fire pump automatically springs into action if the power system of the fire pump motor experiences interruptions or failures. Rest assured, once the power system stabilizes or electric pumps are operational, it seamlessly switches back to the electric pump.
3. Automatic Shutdown Convenience: Relish peace of mind as the diesel fire-fighting pump intelligently delays and automatically shuts down once the fire signal subsides.
4. Battery Self-Charge Functionality: The battery is automatically charged using the diesel engine's main electrical power, ensuring a seamless start of the unit.
5. Comprehensive Indicating System: Ready status, manual and automatic start indicators, unit operation, shutdown statuses, battery charging, overspeed alerts, low oil pressure alerts, high cooling system temperatures, and many more critical alerts ensure you stay informed at all times.
6. Robust Alarm and Protection Systems: Safeguards against multiple potential issues such as failed starts (three times), overspeed, low lubricant oil pressure, cooling water temperature spikes, and many more, ensuring optimal safety and reliability.
7. Advanced Display Systems: Clearly displays vital parameters like engine oil pressure, engine speed, battery charge current, and charging voltage for precise monitoring.
8. Seamless Direct-Coupling: The diesel engine and water pump are expertly connected by a high-flexible coupling on a unified channel base. This ensures a compact structure, outstanding performance, minimal failures and vibrations, and easy on-site installation.
9. Exceptional High Pressure and Large Flow Capacity: Select from IS series single-stage single-suction pumps, SOW series single-stage double-suction pumps, or SHD series segmental multistage pumps to perfectly meet varying fire scenarios.
10. Adjustable Flow and Pressure: Diesel pumps equipped with either mechanical or electronic speed governors allow for precise adjustments to harmonize pump flow and head with actual data requirements.
11. Integrated Water Temperature Pre-Heating Device: Equipped with an AC220V cooling water pre-heating device, this ensures optimal operations even in environments with temperatures as low as 5 ºC.
12. Dual Battery Circuit Assurance: If one battery group fails, the alternate battery group automatically takes over, ensuring uninterrupted operation.
13. Maintenance-Free Battery Advantage: Enjoy the convenience of a maintenance-free battery that eliminates the frequent need for supplemental fluid.
14. Automatic Timing Inspection Test: Harness the power of automation with our advanced fire system! Typically in standby mode, our unit effortlessly conducts thorough device testing to ensure optimal standby conditions, alerting you promptly with timely warnings.
Note: Tailor-made solutions to fit your needs perfectly! Choose from the above functions according to your preferences or let us craft a customized design to meet your specific requirements.
Selection Configuration of Diesel Engine
1. The Pump: Discover versatility with our range of pumps—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 designed to deliver exceptional performance and reliability.
2. The Diesel Engine:
Experience power and efficiency with international renowned diesel engines. Options include single-cylinder, two-cylinder, four-cylinder, and six-cylinder engines, available at speeds of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Equip yourself with our comprehensive range of accessories, including a robust filtration system, effective silencer system, efficient cooling system, durable fuel tank, versatile common channel base, base fuel tank, reliable radiator, long-lasting battery, and efficient charger.
4. The Control Cabinet: Featuring sophisticated SBC, innovative PLC programming, precision sensors, and a fully automatic control cabinet, all designed to deliver seamless operation and control.
| 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 |
Introducing an internationally recognized brand of diesel engines available in versatile options: single-cylinder, two-cylinder, four-cylinder, six-cylinder configurations, with a dynamic speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min. Unleash the power and precision you need!
The SEMHAI Robust Professional Coupling Adaptors seamlessly connect diesel engines to drive pumps with exceptional precision. These adaptors feature a meticulously engineered shaft design for optimal performance and reliability.
Effortlessly connect with our coupling adaptors! These adaptors link to standard couplings, ensuring a straightforward plug-in installation without the need for aligning tools. Crafted from polyamide nylon reinforced with fibreglass, they are torsionally rigid and maintenance-free. Perfect for any hydrostatic drive in construction machinery, harvesters, and forestry equipment.
Experience cutting-edge control with SEMHAI's Diesel Plus Fire Pump Controllers. Designed to command and monitor 12 or 24 volt diesel fire pump engines, these controllers are among the most technologically advanced systems available, ensuring reliability and efficiency in critical situations.
Features
Versatile Universal Supply Voltage ranging from 100Vac to 240Vac, catering to your diverse power needs.
Customize with Dual Output options of 12 or 24 Vdc, easily selectable via DIP Switch for seamless operational flexibility.
Communications made simple with a USB Port / Drive for easy data management.
Effortlessly transfer data to and from your portable USB device, maintaining operational continuity.
Embedded Web Pages*
Gain real-time insights with options to view current status, data values, programmed set points, and historical data with ease.
Ethernet* Direct Connection enables smooth data transfer with a computer, ensuring seamless integration.
RS485 Port*
Leverage MODBUS Communication for enhanced connectivity and control. *Note: COM Option must be ordered to access this function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, engineered for superior capacity and durability.
Ruggedly designed engine mounts efficiently isolate vibrations, reducing noise in both mobile and stationary equipment. Constructed from premium industrial-grade materials, these mounts deliver durability and longevity, enhancing the lifespan of your equipment.
Our Professional Gearboxes are expertly crafted for direct mounting on diesel engines, providing speed modulation for diverse applications. Equip your system with an SAE housing and fixed coupling (Rubber Block Drive) or choose a switchable BD or BDS clutch for tailored performance.
Industry - Perfectly suited for boiler feed water systems and cooling systems, providing unmatched efficiency and reliability.
Smelting - Ideal for water circulation systems and cooling systems, ensuring optimal performance under high temperature conditions.
Fire-fighting - Essential for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, offering robust protection and safety.
Ocean - Perfect for wild water supply systems and island freshwater collection systems, ensuring sustainability and consistent water availability.
Heating - Vital for water circulation systems and cooling systems, offering superior thermal management and energy efficiency.
Municipal - Dependable for emergency drainage and emergency water supply, ensuring quick response and reliability in crisis situations.
Agriculture - Indispensable for irrigation and drainage systems, promoting agricultural productivity and resource conservation.
Expertise in Professional Partnerships
Our esteemed company, Shanghai Semhai Pump Co., Ltd., has proudly forged enduring partnerships with numerous prominent domestic pump-testing institutions. Our long-term collaborations ensure that our High Performance Fire Pump with Stainless Steel and Mechanical Seal meets the highest standards of excellence.
We are allied with the National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City, a leader in pump innovation.
We collaborate with the Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, a vanguard in quality assurance.
Our association extends to the Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, enhancing our commitment to superior quality control.
Furthermore, we partner with the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, an authority in product integrity and reliability, and more.
Audited Supplier 
){kind=link}