Efficient consumption and effortless maintenance:
SEMHAI Engines proudly presents a diverse and extensive array of diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines offer a range of power outputs, featuring ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all in compliance with ISO 3046-1 standards. These engines are expertly approved for driving centrifugal pumps with variable speeds, and their power consumption is optimized according to the specific propeller curve. Renowned for their robustness, SEMHAI diesel engines excel in reliable, fuel-efficient operations, ensuring outstanding efficiency with extended overhaul intervals and an impressive service life. This optimized power density transforms our diesel engines into flexible, high-efficiency energy providers.
Performance Features
1. Offering three exceptional starting functions:
(1). Manual start function: Achieve manual-start through a manual-automatic interlock via the switch;
(2). Automatic-manual functions: Permits three start attempts, issuing a 'starter failure alarm' and automatically exiting the start state if unsuccessful in three tries; the time to reach rated load varies from 5-10-15 seconds based on unit capacity upon first successful start;
(3). Emergency manual direct start function: Enables direct manual start during emergencies when self-controlled devices fail.
2. Seamless automatic operation: Upon receiving a valid fire signal, the diesel fire pump springs into action automatically if starting issues arise due to power interruptions or failures in the fire pump motor system. Once the power supply normalizes or electric pumps are functional, it seamlessly switches to the electric pump.
3. Automatic shutdown: Following the disappearance of the fire signal, the diesel fire-fighting pump gracefully initiates a delay before shutting down automatically.
4. Self-charging battery function: The battery automatically charges via the diesel engine's electrical mains power, ensuring a flawless start of the unit.
5. Superior indicating system: Comprehensive indicators for ready start, manual start, automatic start, unit operation, unit shutdown, battery charging, over-speeding, low lubrication oil pressure, low turbocharger oil pressure, low engine lubricating oil temperature, high cooling system water temperature, low battery voltage, and low fuel level with regular inspection.
6. Robust alarm and protection system: Alerts and safeguards against failure to start thrice, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device malfunction, low battery voltage, high battery voltage, and low fuel level.
7. Advanced display systems: Detailed displays of engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-coupled design: Diesel engine and water pump are seamlessly connected via high-flexible coupling on a common channel base, showcasing a compact structure, excellent performance, minimized failure and vibration, and effortless on-site installation.
9. High pressure and large flow capacity: Experience powerful performance with IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps, tailored to meet various fire scenario requirements.
10. Adjustable flow and working pressure: Diesel pumps equipped with mechanical or electronic speed governors allow effortless adjustment to the diesel engine's speed when pump flow and head deviate from actual data.
11. Water temperature pre-heating device: Equipped with an AC220V cooling water pre-heating device, the unit ensures optimal operation even in environments with temperatures below 5 ºC.
12. Dual battery circuit: In the event of a battery group failure, the alternate group automatically takes over operations.
13. Maintenance-free battery: Enjoy the convenience of not needing to frequently add supplemental fluid.
14. Automatic Timing Inspection Test: Typically in standby mode within fire systems, our unit is ingeniously designed to autonomously conduct device testing for standby conditions. This ensures proactive and timely warnings, offering peace of mind and enhanced safety.
Note: The aforementioned functions are thoughtfully available for selection based on user preferences. We are also delighted to offer bespoke designs tailored to meet your specific and unique requirements.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our premium range including the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the versatile SHD series multistage segment pump, and the efficient ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Discover the power of internationally renowned diesel engines available in single-cylinder, two-cylinder, four-cylinder, and six-cylinder models; with speed ranges from 1500r/min, 1800r/min, 2400r/min, to 3000r/min, ensuring optimal performance for all your needs.
3. Other Accessories: Enhance your setup with a comprehensive array of accessories, including a superior filtration system, advanced silencer system, efficient cooling system, spacious fuel tank, versatile common channel base, integrated base fuel tank, high-performance radiator, reliable battery, and efficient charger;
4. The Control Cabinet: Featuring cutting-edge technology such as SBC, PLC programming, intuitive sensors, and an automatic control cabinet to ensure seamless operation and unparalleled user 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 |
Our premium product is powered by an internationally renowned diesel engine. Choose from options featuring single-cylinder, two-cylinder, four-cylinder, or six-cylinder diesel models operating at versatile speed ranges: 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
Experience seamless performance with SEMHAI's Robust Professional Coupling Adaptors, expertly engineered to connect diesel engines with driven pumps via a precision shaft.
Our coupling adaptors offer effortless integration with standard couplings, ensuring a hassle-free installation without the need for aligning tools. Crafted from polyamide nylon reinforced with fibreglass, they boast torsional rigidity and require no maintenance. Ideal for hydrostatic drives in construction machinery, harvesters, and forestry equipment.
Discover unparalleled control with SEMHAI's Diesel Plus Fire Pump Controllers, crafted to command and monitor 12 or 24 volt diesel fire pump engines. These controllers stand at the forefront of technological advancement in diesel engine control solutions.
Outstanding Features
Universal Supply Voltage ranging from 100Vac to 240Vac, offering flexibility and convenience.
Dual Output options of 12 or 24 Vdc, selectable via a user-friendly DIP Switch.
Seamless Communication with a USB Port/Drive for easy data exchange.
Effortlessly transfer data to and from a portable USB Device, enhancing data management.
Embedded Web Pages* for an interactive experience.
Gain comprehensive insights by viewing current status, data values, programmed set points, and historical data.
Ethernet* direct connectivity enabling streamlined data transfer with a computer.
RS485 Port* for robust connectivity.
MODBUS Communication* available through a COM Option, facilitating advanced communication functions.
Explore our state-of-the-art New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, crafted for superior performance and durability.
Our robust engine mounts expertly isolate vibrations in marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Made with premium industrial-grade materials, these mounts outlast cheaper alternatives, ensuring prolonged equipment lifespan.
Our professional gearboxes, designed for direct diesel engine mounting, excel in speed modulation across various applications. Options include SAE housing with fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side, tailored to your specific needs.
Industry - Specifically designed for boiler feed water systems and cooling systems, our versatile pump ensures seamless operation and reliability, even under demanding conditions.
Smelting - Our cutting-edge pumps are integral to water circulation and cooling systems, providing efficiency and durability in high-temperature environments.
Fire-fighting - Enhance your fire safety measures with our pumps, perfectly suited for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, delivering swift and reliable performance.
Ocean - Engineered for excellence, our pumps support wild water supply systems and island freshwater collection systems, meeting the unique challenges of oceanic environments.
Heating - Designed for optimal performance, our pumps excel in water circulation and cooling systems, ensuring consistent flow and thermal management.
Municipal - Ideal for emergency drainage and water supply, our pumps are reliable assets in municipal emergency response operations, offering rapid deployment and high efficiency.
Agriculture - Our pumps provide vital irrigation and drainage solutions, helping to enhance agricultural productivity and sustainability.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has proudly forged enduring partnerships with premier pump-testing institutions across the nation, ensuring the highest standards of quality and performance assurance:
National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City, is one of our esteemed partners.
Our collaboration with the Irrigation Machinery Products Quality Inspection Center in Zhenjiang City underlines our commitment to excellence.
We also partner with the Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, guaranteeing reliability that meets stringent standards.
Furthermore, the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City is a key player in our network of trust and quality assurance.
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