Efficient consumption and easy maintenance:
SEMHAI Engines presents an expansive range of diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines are versatile, featuring an extensive power spectrum from ION power ranging 415 kW to 920 kW, and ICXN power from 377 kW to 836 kW, all compliant with ISO 3046-1 standards. SEMHAI diesel engines are engineered to propel centrifugal pumps with variable speeds, optimizing power consumption according to the specific propeller curve. Renowned for their robustness, these engines are celebrated for their reliable performance and fuel-efficiency, promising exceptional efficiency with prolonged overhaul intervals and a durable service life. This optimized power density transforms SEMHAI diesel engines into an exemplary source of efficient and adaptable energy supply.
Performance features
1. Empower your operations with three impeccable starting functions:
(1). Manual Start Function: Seamlessly integrate manual-start through a manual-automatic interlock switch.
(2). Automatic-Manual Functions: Enjoy the flexibility of three starting attempts, with a 'starter failure alarm' triggered and automatic exit after three unsuccessful starts. Transition to rated load completion within 5-10-15 seconds, contingent on unit capacity, after a successful initial start.
(3). Emergency Manual Direct Start: Ensure operations continue smoothly with an emergency manual direct start when self-controlled devices encounter failures.
2. Automatic Operation: Once a valid fire signal is detected, the diesel fire pump initiates automatically. Should power supply disruptions occur, these pumps rise to the occasion, automatically switching to electric pumps when normal power supply resumes.
3. Automatic Shutdown: Experience peace of mind with the diesel fire-fighting pump's automatic delay and shutdown once the fire signal dissipates.
4. Battery Self-Charge Function: The battery enjoys automatic charging via the diesel engine's electrical mains power, ensuring seamless and reliable starts.
5. Comprehensive Indicating System: Stay informed with indicators for readiness, manual start, automatic start, unit operation, shutdown, battery charging, engine speed, low lubrication oil pressure, high cooling system temperature, and more.
6. Superior Alarm and Protection Systems: Safeguard operations with alarms for failed starts, overspeed, low lubricant oil pressure, high cooling water temperature, low battery voltage, and fuel level, among other crucial alerts.
7. Sophisticated Display Systems: Monitor engine oil pressure, engine speed, battery charge current, and charging voltage with precision.
8. Direct-Coupled Excellence: The diesel engine and water pump are united by a high-flexible coupling on a common base, offering compact structure, superior performance, minimal vibrations, and ease of on-site installation.
9. High Pressure and Large Flow Capacity: Tailor your fire-fighting needs with IS series single-stage suction, SOW series double-suction, and SHD series multistage pumps.
10. Adjustable Flow and Working Pressure: Diesel pumps, equipped with mechanical or electronic speed governors, offer the flexibility to alter engine speed in response to varying flow and head conditions.
11. Pre-Heating Device for Water Temperature: Equipped with an AC220V cooling water preheating device, the unit ensures optimal operation in environments as low as 5 ºC.
12. Double Battery Circuit: Experience uninterrupted performance with an automatic switch to an alternate battery upon failure of the primary one.
13. Maintenance-Free Battery: Eliminate the need for frequent fluid supplementation, offering a hassle-free battery experience.
14. Automatic Timing Inspection Test: In a fire system, which typically remains in standby mode, our unit showcases the ability to automatically complete device testing for standby conditions, ensuring a timely warning is delivered, thereby enhancing readiness and reliability.
Note: The aforementioned functions are available for selection based on user preferences. We also offer customized designs tailored to meet specific requirements, ensuring that every need is met with precision.
Selection Configuration of Diesel Engine
1. The Pump: Our offering includes the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump, each designed for superior performance and efficiency.
2. The Diesel Engine:
We feature internationally renowned diesel engine brands offering single-cylinder, two-cylinder, four-cylinder, and six-cylinder designs, with a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring adaptability to diverse operational demands.
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 to complement and enhance system performance.
4. The Control Cabinet: Featuring SBC and PLC programming, our control cabinet incorporates advanced sensors and automatic control capabilities, providing a seamless integration and efficient 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 |
Introducing the internationally acclaimed brand of diesel engines, engineered with precision to include versatile options such as single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Operate seamlessly across a dynamic speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring unparalleled performance and adaptability for your fire fighting needs.
Experience the superior engineering of SEMHAI's Robust Professional Coupling Adaptors. These precision devices are expertly crafted to seamlessly connect diesel engines, providing a powerful drive to pumps via a reliable shaft connection.
Our coupling adaptors offer effortless installation with a standard coupling that eliminates the need for alignment tools. Crafted from polyamide nylon reinforced with fibreglass, they boast torsional rigidity and are entirely maintenance-free. Perfectly suited for hydrostatic drives in construction machines, harvesters, and forestry machinery, these adaptors exemplify durability and efficiency.
The Diesel Plus Fire Pump Controllers by SEMHAI stand at the forefront of technology. Designed specifically to control and monitor 12 or 24 volt diesel fire pump engines, these controllers epitomize sophistication and technical prowess in diesel engine management.
Features
Universal Supply Voltage: Ranging from 100Vac to 240Vac, offering flexibility and compatibility across various power setups.
Dual Output: Easily selectable via a DIP switch, choose between 12 or 24 Vdc outputs, providing adaptability to your power requirements.
Communications USB Port / Drive: Seamless integration with your devices for enhanced functionality and data management.
Effortlessly transfer data to and from a portable USB device, streamlining your workflow and ensuring data is always at your fingertips.
Embedded Web Pages*
Gain comprehensive insights with our web interface, offering a clear view of current status, data values, programmed set points, and historical data for in-depth analysis and management.
Ethernet* Direct Connection: Facilitate seamless data transfer and connectivity with computers, enhancing communication and data accessibility.
RS485 Port*:
MODBUS Communication: Enable advanced communication capabilities with the COM option, unlocking the full potential of integrated systems.
Introducing our New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; a robust solution designed to meet your high-demand fuel storage needs efficiently and safely.
The robust design of our engine mounts effectively isolates vibrations, reducing noise for both marine and industrial applications. Constructed from premium industrial-grade materials, these mounts ensure longevity and enhanced performance, safeguarding your equipment investment by extending its operational lifespan.
Our professional-grade gearboxes are meticulously engineered for direct mounting on diesel engines, providing versatile solutions for speed modification across various applications. With options for SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side, these gearboxes deliver precise control and adaptability.
Industry - Perfectly suited for boiler feed water systems and cooling systems, our pump ensures impeccable performance and reliability.
Smelting - Enhance the efficiency of your water circulation and cooling systems with our advanced pump technology, specifically designed to withstand the demands of smelting operations.
Fire-fighting - Whether it's fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, or water monitor systems, our centrifugal pump delivers dependable power when you need it most.
Ocean - Experience seamless wild water supply solutions and island freshwater collection with our pump, engineered for optimal performance in oceanic environments.
Heating - Ensure efficient and consistent water circulation and cooling with our pump, ideal for heating applications.
Municipal - Be prepared for any emergency with our pump, designed for rapid emergency drainage and water supply, ensuring municipal resilience.
Agriculture - Achieve superior irrigation and drainage efficiency with our pump, crafted for robust agricultural applications.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with premier domestic pump-testing institutions, ensuring top-notch quality and reliability for our products, such as:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps, based in Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, located in Zhenjiang City,
The Ministry of Agriculture’s Water Pump Quality Supervision and Testing Center, proudly situated in Chongqing City,
And the prestigious Shanghai Mechanical and Electrical Products Quality Inspection Center, right here in Shanghai City, among others.
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