Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents an extensive array of diesel engines designed for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Boasting an impressive power range, these engines deliver ION power from 415 kW to 920 kW or ICXN power from 377 kW to 836 kW, complying with the rigorous standards of ISO 3046-1. These engines are expertly engineered for driving centrifugal pumps at variable speeds, with power consumption perfectly aligned with the designated propeller curve. Our robust SEMHAI diesel engines stand out for their remarkable reliability and fuel efficiency, characterized by extended overhaul intervals and an extended service life. This optimized power density transforms our diesel engines into exceptionally efficient and adaptable energy providers.
Performance Features
1. Exceptional Starting Functions in Three Varieties:
(1). Manual Start Function: Seamlessly achieve manual start with a manual-automatic interlock via the switch;
(2). Automatic and Manual Functions: Facilitates up to three starting attempts, issuing a 'starter failure alarm' and automatically disengaging if starting fails after three attempts; first-time rated load initiation occurs within 5-10-15 seconds, depending on unit capacity.
(3). Emergency Manual Direct Start Function: Instantly engage emergency manual start when the self-control device encounters failure.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump seamlessly initiates operation if the pump fails to start due to power system interruptions. Once the power supply normalizes or electric pumps become operational, it automatically transitions to electric pump mode.
3. Automatic Shutdown: The diesel fire-fighting pump gracefully delays and ceases operation automatically when the fire signal dissipates.
4. Self-Charging Battery Feature: The battery is conveniently charged automatically by the diesel engine's electrical mains power, ensuring the unit starts flawlessly.
5. Comprehensive Indicating System: Includes ready-to-start, manual start, automatic start, unit operation, unit shutdown, battery charging, speeding alerts, low lubrication oil pressure, low turbocharger oil pressure, low engine oil temperature, high cooling water temperature, low battery voltage, low fuel level, and regular inspection indicators.
6. Advanced Alarm or Protection System: Delivers alerts or protection against start failures (3 times), overspeed conditions, low lubricant oil pressure, low turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device malfunctions, low battery voltage, high battery voltage, and low fuel levels.
7. Enhanced Display Systems: Features displays for engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-Coupled Precision: The diesel engine and water pump are expertly connected via a high-flexible coupling on a shared channel base. This compact design ensures superior overall performance, reduced failures, minimal vibrations, and easy on-site installation.
9. High-Pressure and Large Flow Capacity: By selecting IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps, we cater to diverse fire-fighting scenarios with precision.
10. Adjustable Flow and Working Pressure: With diesel pumps equipped with mechanical or electronic speed governors, we enable precise adjustment of diesel engine speed to align pump flow and head with actual data.
11. Pre-Heating Device for Water Temperature: Furnished with an AC220V cooling water preheating device, the unit guarantees optimal performance even at temperatures below 5 ºC.
12. Dual Battery Circuit: If one battery group fails, the other is automatically activated to ensure seamless operation.
13. Maintenance-Free Battery: Enjoy the convenience of a battery that requires no frequent fluid top-ups.
14. Automatic Timing Inspection Test: Our fire system is designed to typically remain in a vigilant standby mode, ready to protect at a moment's notice. The unit itself is engineered to autonomously conduct comprehensive device testing, ensuring optimal standby condition. It smartly provides timely alerts and warnings to keep you informed and prepared.
Note: The above functions are thoughtfully crafted to be selectable, allowing for complete customization based on user preferences. We also offer bespoke designs tailored precisely to meet your unique and specific requirements, ensuring a perfect fit for your needs.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our robust lineup including the IS series single-stage single-suction pump, the powerful SOW series single-stage double-suction pump, the versatile SHD series multistage segment pump, and the efficient ZW horizontal self-priming centrifugal pump, each engineered for superior performance and reliability.
2. The Diesel Engine:
Our diesel engines feature international renowned brands and include single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. With a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, they offer both power and adaptability to meet diverse operational demands.
3. Other Accessories: Enhance your system with our complete suite of accessories, including a state-of-the-art filtration system, noise-reducing silencer system, efficient cooling system, durable fuel tank, common channel base, versatile base fuel tank, high-performance radiator, reliable battery, and an advanced charger to ensure seamless and uninterrupted operation.
4. The Control Cabinet: Equipped with SBC and PLC programming, sensors, and an automatic control cabinet, our control cabinets are designed to offer unparalleled precision and control, ensuring seamless operation and optimal performance.
| 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 water pump boasts an international renowned diesel engine brand, available in single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations. Enjoy a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, catering to your specific needs.
SEMHAI's exceptionally robust professional coupling adaptors are expertly designed to seamlessly connect diesel engines, driving pumps with a precision-engineered shaft for unparalleled reliability.
These coupling adaptors effortlessly connect to a standard coupling, offering a straightforward plug-in installation that requires no alignment tools. Crafted from polyamide nylon reinforced with fibreglass, they are torsionally rigid and entirely maintenance-free. Perfect for any hydrostatic drive in construction machinery, harvesters, and forestry equipment.
SEMHAI's Diesel Plus Fire Pump Controllers are meticulously designed to control and vigilantly monitor 12 or 24 volt diesel fire pump engines. These controllers represent the pinnacle of technological advancement in diesel engine control systems.
Outstanding Features
Universal Supply Voltage: Operates efficiently from 100Vac to 240Vac
Dual Output: Flexible 12 or 24 Vdc, easily selectable via DIP Switch
Seamless Communication: Integrated USB Port / Drive for connectivity needs
Effortless Data Handling: Transfer data seamlessly to and from a portable USB device
Embedded Web Pages*: Simplifying access with intuitive web-based interfaces
Real-Time Viewing: Instantly view current status, data values, programmed set points, and history at your convenience
Ethernet* Connectivity: Direct connection and efficient data transfer with a computer for streamlined operations
RS485 Port*: Expand your communication capabilities
MODBUS Communication: * Ensure the COM Option is ordered to unlock this powerful function
Innovative New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank;
Our robust engine mounts are engineered to isolate vibrations for both marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Crafted from premium industrial-grade materials, our mounts outlast cheaper alternatives, ensuring the longevity of your equipment.
Our professional gearboxes are meticulously designed for direct mounting on diesel engines, adept at accelerating or reducing speed across various applications. On the input side, we offer flexibility with either an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch.
Industry - Perfectly designed for boiler feed water systems and advanced cooling systems, ensuring optimal performance and efficiency.
Smelting - Expertly crafted for water circulation systems and cooling systems, providing reliable and robust solutions for demanding environments.
Fire-fighting - Essential for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, delivering unmatched reliability when it matters most.
Ocean - Tailored for wild water supply systems and island freshwater collection systems, offering sustainable and dependable water solutions in challenging marine settings.
Heating - Ideal for water circulation systems and cooling systems, engineered to ensure seamless and efficient thermal management.
Municipal - Designed for emergency drainage and emergency water supply, providing rapid and dependable response in critical situations.
Agriculture - Specifically developed for irrigation and drainage systems, supporting efficient and effective water management for agricultural needs.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged robust and enduring partnerships with several esteemed and authoritative domestic pump-testing institutions. These strategic alliances ensure the highest standards of quality and performance for our offerings. Our trusted partners include:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in the vibrant city of Zhenjiang,
The distinguished Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the respected Shanghai Mechanical and Electrical Products Quality Inspection Center, located in the dynamic metropolis of Shanghai, among many others.
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