Efficient consumption and effortless maintenance:
SEMHAI Engines boasts an extensive array of diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. These engines are engineered in a diverse range of power outputs such as ION power from 415 kW to 920 kW or ICXN power spanning from 377 kW to 836 kW, compliant with ISO 3046-1 standards. Designed to adeptly drive centrifugal pumps at varying speeds, they align with the respective propeller curve for optimal power consumption. Known for their robust and durable construction, SEMHAI diesel engines offer unmatched reliability and fuel efficiency, ensuring sustained performance through extended overhaul intervals and longevity. This enhanced power density transforms our diesel engines into versatile and highly effective energy providers.
Performance features
1. Possesses 3 exemplary starting functionalities:
(1). Manual start capability: Seamless manual-start function achieved through manual-automatic interlock activation via the switch;
(2). Automatic-manual operations: Facilitates 3 attempts at starting, emitting a "starter failure alarm" and automatically discontinues the starting sequence if unsuccessful after 3 attempts; Initiates loading to rated capacity within 5-10-15 seconds (dictated by unit capacity) upon first successful start;
(3). Emergency manual direct start: Ensures manual activation in emergencies when autonomous device controls fail.
2. Automated operation: Upon receiving a legitimate fire signal, the diesel fire pump springs into action autonomously if the pump fails to start due to disruption or malfunction within the fire pump motor's power supply system. Once restored, the system effortlessly transitions back to the electric pump for continued operation.
3. Automatic shutdown: The diesel fire-fighting pump gracefully delays and ceases operation automatically when the fire signal is no longer detected.
4. Self-charging battery function: The battery is maintained at optimal charge levels automatically via the diesel engine's electrical mains, ensuring a seamless start every time.
5. Comprehensive indicating system: Clearly displays statuses such as ready to start, manual start, automatic start, unit operation, shutdown, charging progress, speed issues, low lubrication oil pressure, low turbocharger oil pressure, low engine oil temperature, high cooling system water temperature, battery voltage, and fuel level, including regular system inspections.
6. Advanced alarm and protection system: Offers alarms and protective measures against failed starts (3 attempts), overspeed conditions, low lubricant oil pressure, low turbocharger oil pressure, overheating in cooling water, low lubricating oil temperature, automatic charging device malfunctions, and battery voltage irregularities, alongside low fuel levels.
7. Superior display systems: Monitors and displays crucial metrics like engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-coupled innovation: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a unified base, ensuring a compact form, outstanding performance, reduced failures and vibrations, and simplified on-site installation.
9. High pressure with substantial flow capacity: By selecting IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps, it caters to diverse fire emergency requirements.
10. Adjustable flow and working pressure: Diesel pumps equipped with mechanical or electronic speed governors allow for precise adjustments, harmonizing engine speed with pump flow and head to meet actual performance demands.
11. Pre-heating device for water temperature: Equipped with an AC220V cooling water preheating mechanism, it guarantees optimal operational conditions even below 5 ºC.
12. Dual battery circuit innovation: Ensures continuity of operation as an alternative battery automatically engages upon the failure of one set.
13. Maintenance-free battery: Eliminates the need for frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: Our fire system, typically in standby mode, offers an intelligent solution for ensuring safety. The unit can seamlessly execute device tests in standby conditions and deliver timely warnings, enhancing preparedness and reliability.
Note: The functions listed above are customizable to cater to your unique needs. We offer bespoke designs to meet specific requirements, ensuring our solutions are tailor-made to address your exact specifications.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our sophisticated array, including the IS series single-stage single-suction pump for streamlined performance, the SOW series single-stage double-suction pump for robust applications, the SHD series multistage segment pump for high-pressure needs, and the versatile ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Experience the reliability of international renowned brands featuring a spectrum of diesel engines: single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Enjoy a dynamic speed range tailored to your requirements: 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Enhance your system's efficiency with our comprehensive range of accessories, including a state-of-the-art filtration system, advanced silencer system, efficient cooling system, durable fuel tank, common channel base, base fuel tank, high-performance radiator, dependable battery, and reliable charger.
4. The Control Cabinet: Equip your setup with our cutting-edge control cabinets featuring SBC, PLC programming, sensor technologies, and automatic control capabilities for unparalleled management and oversight.
| 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 |
Discover the globally acclaimed diesel engine featuring a diverse range of options: single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations. With versatile speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, this engine promises optimal performance and reliability.
SEMHAI introduces its exceptionally durable professional coupling adaptors, crafted to seamlessly connect diesel engines to drive pumps via a robust shaft interface.
Our coupling adaptors offer effortless plug-in installation with a standard coupling, eliminating the need for alignment tools. Constructed from polyamide nylon strengthened with fibreglass, they are torsionally rigid and maintenance-free. Ideal for any hydrostatic drive in construction machines, harvesters, and forestry machinery.
Introducing the Diesel Plus Fire Pump Controllers from SEMHAI, engineered for precision control and monitoring of 12 or 24-volt diesel fire pump engines. These controllers are among the most advanced in the market, embodying cutting-edge technology.
Features
Universal Supply Voltage ranging from 100Vac to 240Vac for versatile application.
Dual Output capabilities at 12 or 24 Vdc, easily adjustable via DIP Switch for maximum flexibility.
Advanced Communications through USB Port / Drive, enhancing connectivity.
Effortless Data Transfer to and from a portable USB Device for seamless operation.
Innovative Embedded Web Pages* for intuitive interaction.
Access real-time status, data values, programmed set points, and historical data with ease.
Direct Ethernet* connection enables efficient data transfer and interaction with computers.
RS485 Port* for versatile connectivity options.
MODBUS Communication available * COM Option required to enable this sophisticated function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for maximum fuel storage and efficiency.
Our robust engine mounts effectively isolate vibrations in marine and industrial settings, significantly reducing noise in both mobile and stationary equipment. Crafted from premium industrial-grade materials, these mounts offer superior longevity compared to cheaper alternatives, thus extending the lifespan of your equipment.
Our professional gearboxes are meticulously designed for direct mounting on diesel engines, offering speed acceleration or reduction across various applications. On the input side, options include an SAE housing with fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for optimized performance.
Industry - Our Reliable Diesel Engine Fire Pumps are expertly engineered to serve a diverse array of industrial applications such as in a boiler feed water system and cooling system, ensuring seamless operations and superior performance.
Smelting - Designed for excellence in smelting processes, these pumps are integral to the water circulation and cooling systems, providing unmatched efficiency and reliability.
Fire-fighting - These pumps are essential for fire-fighting applications, perfectly tailored for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems. They deliver robust performance and reliability when it matters most.
Ocean - Ideal for marine environments, our pumps are perfect for wild water supply systems and island freshwater collection systems, delivering reliable service and facilitating efficient water management.
Heating - With premium engineering, our pumps are suited for heating applications, enhancing the performance of water circulation and cooling systems with unparalleled precision.
Municipal - Whether it's emergency drainage or emergency water supply, our pumps stand ready to serve municipal needs with unmatched efficacy and reliability, ensuring public safety.
Agriculture - Tailored for agricultural use, these pumps excel in irrigation and drainage systems, providing farmers with reliable water management solutions to nurture their crops.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with a myriad of esteemed, large-scale domestic pump-testing institutions, ensuring unparalleled excellence and trust in our Reliable Diesel Engine Fire Pump for High Pressure Water Delivery. Our collaborative efforts extend to:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City, renowned for its rigorous standards and exceptional expertise.
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City, a beacon of precision and quality assurance.
The authoritative Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, a leader in agricultural innovation and pump quality.
The distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, epitomizing excellence and rigorous inspection protocols, amongst others.
Audited Supplier 
){kind=link}