Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly offers an extensive array of diesel engines, specifically designed for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines come in an impressive range of power options, featuring ION power between 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all in strict compliance with ISO 3046-1 standards. These engines are meticulously approved for operating centrifugal pumps at various speeds, ensuring that power consumption is perfectly aligned with the respective propeller curve. The durable SEMHAI diesel engines are acclaimed for their reliability and fuel efficiency, characterized by long overhaul intervals and an extended service life. This optimized power density transforms our diesel engines into highly efficient, flexible energy providers.
Performance Features
1. Equipped with 3 remarkable starting functions:
(1). Manual Start Function: Enjoy the flexibility of a manual start, activated through manual-automatic interlock facilitated by a switch;
(2). Automatic-Manual Functions: Designed to allow up to 3 starting attempts, the system raises a 'starter failure alarm' and automatically exits the starting state after three unsuccessful tries. The system ensures a rated load start time of 5-10-15 seconds, adjusted according to unit capacity, after a successful initial start;
(3). Emergency Manual Direct Start Function: Provides a reliable manual direct start feature for emergencies when self-control devices fail.
2. Seamless Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump autonomously initiates operation if interrupted by a power failure or phase issue within the fire pump motor system. When normalcy returns, or electric pumps are functional, it promptly switches back to electric operation.
3. Automatic Shutdown: The diesel fire-fighting pump intelligently delays and executes an automatic shutdown once the fire signal ceases.
4. Battery Self-charge Function: The battery is automatically charged via the diesel engine's electrical mains power, ensuring seamless unit startup.
5. Comprehensive Indicating System: Complete with indicators for ready status, manual start, automatic start, unit operation, shutdown, battery charging, and alerts for speeding, low oil pressure, low turbocharger oil pressure, low engine lubricant temperature, high cooling system water temperature, low battery voltage, and low fuel levels, along with reminders for regular inspections.
6. Advanced Alarm and Protection System: Features alarms or protective responses for three-time starter failures, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high coolant water temperature, low lubricant oil temperature, and failures in the automatic charging device, as well as low or high battery voltage and low fuel levels.
7. State-of-the-Art Display Systems: Provides real-time information on engine oil pressure, engine speed, battery charge current, and charging voltage.
8. Direct-Coupled Design: The diesel engine and water pump are expertly linked by a highly flexible coupling on a common channel base. This compact structure ensures superior overall performance, reduced failure and vibration, and easy on-site installation.
9. High Pressure and Large Flow Capacity: Featuring a selection from the IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series multistage pumps, catering to diverse fire scenarios and requirements.
10. Adjustable Flow and Working Pressure: Diesel pumps are equipped with mechanical or electronic speed governors, allowing speed adjustment of the diesel engine to align pump flow and head with actual data, ensuring optimal performance.
11. Pre-Heating Device for Water Temperature: The unit includes an AC220V cooling water preheating device, ensuring reliable operation even in environments where temperatures drop below 5ºC.
12. Dual Battery Circuit: Ensures continuous operation, automatically activating an alternate battery upon primary battery failure.
13. Maintenance-Free Battery: Designed for convenience, these batteries do not require frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: In the constantly vigilant realm of fire systems, where standby mode is the norm, our unit takes charge by autonomously conducting comprehensive device testing. This ensures readiness for standby conditions and provides timely warnings to guarantee safety and peace of mind.
Note: The functions mentioned above are tailored to meet the diverse needs of our discerning users. Additionally, we offer bespoke design capabilities, allowing customization to meet specific and unique user requirements.
Selection Configuration of Diesel Engine
1. The Pump: Our offerings include 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 innovative ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Our selection features internationally acclaimed diesel engine brands. Choose from single-cylinder, two-cylinder, four-cylinder, and six-cylinder options, with speed ranges meticulously engineered to span 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring performance excellence.
3. Other Accessories: We provide a comprehensive suite of accessories including an efficient filtration system, a sophisticated silencer system, an advanced cooling system, a durable fuel tank, a common channel base, a base fuel tank, a high-performance radiator, and an essential battery charger.
4. The Control Cabinet: Our control solutions feature SBC, PLC programming, state-of-the-art sensors, and a user-friendly automatic control cabinet to ensure seamless operations and precise 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 |
Leverage the Power of Internationally Renowned Diesel Engines: Our offerings include cutting-edge single-cylinder, two-cylinder, four-cylinder, and six-cylinder diesel engines, boasting speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min to meet diverse needs.
Introducing the SEMHAI Robust Professional Coupling Adaptors: Expertly designed for seamless connection of diesel engines to drive pumps via a shaft, these adaptors ensure reliable performance.
Effortless Connectivity with SEMHAI Coupling Adaptors: Engineered for easy plug-in installation, these adaptors forego the need for aligning tools. Constructed from polyamide nylon reinforced with fiberglass, they offer torsional rigidity and are maintenance-free. Ideal for any hydrostatic drive in construction machinery, harvesters, and forestry equipment.
Advanced Diesel Plus Fire Pump Controllers by SEMHAI: Tailored to control and monitor 12 or 24-volt diesel fire pump engines, these controllers are at the forefront of diesel engine technology.
Distinctive Features
Universally Compatible Supply Voltage: Ranges from 100Vac to 240Vac for versatile applications.
Dual Output Flexibility: 12 or 24 Vdc, selectable via DIP Switch, to suit various operational requirements.
Seamless Communications: Equipped with a high-speed USB Port/Drive for easy connectivity.
Effortless Data Transfer: Facilitate smooth data transfer to and from portable USB devices.
Integrated Web Interface*
Comprehensive Overview: Access current statuses, data values, programmed set points, and historical data with ease.
Ethernet Connectivity*: Direct connection and data transfer capabilities with computers for enhanced efficiency.
RS485 Port* for Enhanced Connectivity
MODBUS Communication: *COM Option required for advanced communication functionality.
The New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank: Designed for maximum efficiency and capacity.
Durable Engine Mounts for Noise and Vibration Isolation: Our mounts, crafted from premium industrial-grade materials, are engineered to last longer, reducing noise and extending the lifespan of both mobile and stationary equipment.
Precision-Crafted Professional Gearboxes: Designed for direct diesel engine mounting, these gearboxes facilitate speed modulation. With options for SAE housing, fixed coupling (Rubber Block Drive), or switchable BD/BDS clutch on the input side, they cater to diverse application needs.
Industry - Perfectly suited for boiler feed water systems and cooling systems, offering unparalleled efficiency and reliability.
Smelting - Expertly designed for water circulation and cooling systems, ensuring continuous performance and safety.
Fire-fighting - Ideal for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, providing robust protection and responsiveness.
Ocean - Essential for wild water supply systems and island freshwater collection systems, ensuring sustainability and resource availability.
Heating - Exceptionally engineered for water circulation and cooling systems, delivering consistent and effective temperature management.
Municipal - Perfect for emergency drainage and emergency water supply, offering fast and dependable solutions in critical situations.
Agriculture - Tailored for irrigation and drainage systems, enhancing productivity and maintaining optimal water levels for crop growth.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. proudly maintains enduring partnerships with numerous esteemed domestic pump-testing authorities, ensuring our Durable Centrifugal Water Pump for Irrigation with Packing Gland Seal meets the highest standards.
Our collaborations include the renowned National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City.
In partnership with the esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial based in Zhenjiang City, we uphold rigorous quality checks.
Additionally, we work closely with the Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, ensuring excellence in every pump.
Our dedication to quality is further solidified by our alliance with the Shanghai Mechanical and Electrical Products Quality Inspection Center, located in the vibrant city of Shanghai.
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