Experience unmatched efficiency and effortless maintenance:
At SEMHAI Engines, we proudly present an extensive range of diesel engines meticulously crafted for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. These powerful engines span a diverse spectrum of power capacities, offering ION power from 415 kW to 920 kW, or ICXN power from 377 kW to 836 kW, all compliant with ISO 3046-1 standards. Designed with precision, our engines are pre-approved for driving centrifugal pumps at variable speeds, optimizing power consumption as dictated by the specific propeller curve. The hallmark of our SEMHAI diesel engines lies in their unwavering reliability and exceptional fuel efficiency, which translates into long-lasting performance and extended service intervals. This innovative power density transforms our diesel engines into reliable and adaptable sources of energy.
Performance features
1. Experience unmatched versatility with three superior starting-functions:
(1). Manual start function: Achieve seamless operation with manual start, effortlessly engaging manual-automatic interlock via a switch;
(2). Automatic-manual functions: Enjoy the convenience of three automatic starting attempts, alert issued with 'starter failure alarm' and automatic exit after three unsuccessful tries; Transition to rated load within 5-10-15S (dependent on unit capacity) upon successful initial start;
(3). Emergency manual direct start function: Ensure reliable performance during emergencies with manual direct start function, even when self-controlled devices encounter failures.
2. Automatic operation: Seamlessly transition to automatic operation as the pump unit detects a valid signal fire. The diesel fire pump initiates automatically if there are disruptions in the fire pump motor's power supply system. Once power is restored, or electric pumps regain operational status, the system effortlessly switches back to electric pump operation.
3. Automatic shutdown: Experience peace of mind with automatic shutdown capabilities, as the diesel fire-fighting pump gracefully powers down following the disappearance of the fire signal.
4. Self-charging battery system: Ensure uninterrupted operation with the battery's ability to charge automatically through the diesel engine's electrical mains power, guaranteeing a smooth startup of the unit.
5. Comprehensive indicating system: Stay informed with indicators for ready status, manual and automatic start, unit operation, shutdown, battery charging status, speed, lubrication oil pressure, turbocharger oil pressure, engine lubricating oil temperature, cooling system water temperature, battery voltage, fuel level, and regular inspections.
6. Robust alarm and protection system: Be alerted and safeguarded against conditions such as failure to start after three attempts, overspeed, low lubricant oil pressure, turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failure, battery voltage anomalies, and low fuel level.
7. Advanced display systems: Monitor critical parameters including engine oil pressure, engine speed, battery charge current, and battery voltage with precision.
8. Direct-coupled innovation: Benefit from a high-flexible coupling connecting the diesel engine and water pump on a shared channel base, offering a compact structure with superb overall performance, minimized failure and vibration, and facilitating convenient on-site installation.
9. High pressure and large flow capacity: Select from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps to cater to various fire-fighting scenarios, ensuring optimal performance.
10. Adjustable flow and working pressure: With mechanical or electronic speed governors, effortlessly tailor the diesel engine's speed to align the pump flow and head with actual requirements, ensuring adaptability.
11. Pre-heating device for water temperature: Maintain flawless operation even in chilly environments with the unit's AC220V cooling water preheating device, adeptly functioning below 5 ºC.
12. Double battery circuit: Guarantee reliability with an automatic switch to the secondary battery circuit in case of primary battery failure.
13. Maintenance-free battery: Enjoy hassle-free operation with a battery designed to eliminate the frequent need for supplemental fluid.
14. Automatic Timing Inspection Test: In the realm of fire safety, systems typically remain in standby, but with our advanced technology, the unit autonomously executes device testing to ensure readiness. It seamlessly conducts tests for standby conditions and issues timely warnings, maintaining peak operational performance.
Note: The above features offer flexibility to meet diverse user requirements. We also excel in delivering bespoke designs tailored to specific customer needs, ensuring a perfect fit for every unique situation.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our premium selection, including the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the versatile ZW horizontal self-priming centrifugal pump, each engineered for optimal performance.
2. The Diesel Engine:
Experience the power and reliability of internationally renowned diesel engine brands, available in configurations ranging from single-cylinder up to six-cylinder. Our engines support a variety of speed ranges, including 1500r/min, 1800r/min, 2400r/min, and 3000r/min, to suit your operational needs.
3. Other Accessories: Enhance your setup with a comprehensive suite of accessories including a robust filtration system, advanced silencer system, efficient cooling system, durable fuel tank, common channel base, integrated base fuel tank, high-performance radiator, reliable battery, and charger.
4. The Control Cabinet: Equip your system with cutting-edge control technology featuring SBC, PLC programming, and sensor-equipped automatic control cabinets for seamless and intelligent operation.
| 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 |
Harnessing the power of internationally acclaimed diesel engines, our range features an impressive selection: single-cylinder, two-cylinder, four-cylinder, and six-cylinder diesel options. Each engine operates within versatile speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring adaptability and robust performance for any application.
Engineered for excellence, SEMHAI's Robust professional coupling adaptors are meticulously crafted to seamlessly connect diesel engines to drive pumps with precision and efficiency. Experience the seamless integration of power and performance with our state-of-the-art adaptors.
Our coupling adaptors epitomize ease and efficiency with standard coupling connectivity for uncomplicated plug-in installation, eliminating the need for alignment tools. Constructed from premium polyamide nylon reinforced with fiberglass, these adaptors boast torsional rigidity and are maintenance-free. Ideal for hydrostatic drives in construction, agricultural, and forestry machinery.
Designed to perfection, SEMHAI's Diesel Plus Fire Pump Controllers offer unparalleled control and monitoring capabilities for 12 or 24 volt diesel fire pump engines. As some of the most technically sophisticated controllers available, they ensure optimal functionality and reliability in critical applications.
Features
Versatile Universal Supply Voltage ranging from 100Vac to 240Vac, providing the flexibility needed for diverse applications.
Enjoy the convenience of Dual Output capabilities, offering 12 or 24 Vdc, easily selectable via DIP Switch for seamless adaptability.
Integrate with ease using the Communications USB Port / Drive, facilitating smooth data interactions.
Effortlessly transfer data to and from a portable USB device, ensuring your data is always accessible and up-to-date.
Embedded Web Pages*
Monitor with precision: View current status, access real-time data values, review programmed set points, and explore historical data, all at your fingertips.
Experience seamless data transfer with Ethernet* Direct Connection, allowing for easy interaction with a computer.
RS485 Port*
Engage in sophisticated communication with MODBUS, *COM Option must be ordered for this advanced function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; a powerhouse of capacity and reliability.
Revolutionize noise reduction with our robust engine mounts, designed to isolate vibrations in marine and industrial applications. Made with premium industrial-grade materials, these mounts ensure longevity and extend the lifespan of both mobile and stationary equipment.
Our professional gearboxes are meticulously designed for direct diesel engine mounting, offering speed modulation options to suit varied applications. Equipped with an SAE housing and fixed coupling (Rubber Block Drive) or switchable BD/BDS clutch on the input side for adaptable, high-performance solutions.
Industry - Our Robust Horizontal Pump with Mechanical Seal is an indispensable asset for the boiler feed water system and cooling system, offering unparalleled reliability and efficiency for optimal performance.
Smelting - Experience seamless water circulation and cooling system operations with our advanced pump technology, designed to ensure continuous and efficient flow in demanding smelting environments.
Fire-fighting - Enhance your fire safety systems with our pump's exceptional capabilities. Perfectly suited for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, it delivers rapid and reliable water supply when it matters most.
Ocean - Ideal for wild water supply and island freshwater collection systems, our pump ensures reliable and efficient water management solutions tailored for unique oceanic conditions.
Heating - Optimize your water circulation and cooling systems with our pump's cutting-edge technology, providing consistent and energy-efficient performance for all your heating needs.
Municipal - Trust in our pump for emergency drainage and emergency water supply, ensuring swift and dependable solutions in critical municipal situations.
Agriculture - Designed to support robust irrigation and drainage systems, our pump offers farmers a reliable tool to enhance agricultural productivity and ensure efficient water usage.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring and strategic collaborations with numerous prestigious, large-scale domestic pump-testing institutions to elevate our product standards and ensure unmatched performance. These partnerships include:
The renowned National Quality Supervision and Inspection Center of Industrial Pumps, situated in Tiexi District, Shengyang city,
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, located in Zhenjiang City,
The respected Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, based in Chongqing city,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, right here in Shanghai city, among others.
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