Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents an extensive selection of diesel engines meticulously crafted for stationary applications. These robust engines seamlessly drive devices such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. Available in diverse power ranges, including ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, our engines are compliant with ISO 3046-1 standards. Specifically engineered for variable speed centrifugal pumps, these engines showcase an impeccable balance of reliability and fuel efficiency. The hallmark of SEMHAI diesel engines is their remarkable power density, ensuring not only an extended service life but also long intervals between overhauls. These engines are the epitome of efficiency and flexibility, setting a benchmark in energy supply.
Performance features
1, With 3 types of exceptional starting-functions:
(1). Manual start function: Achieve manual-start through a seamless manual-automatic interlock switch;
(2). Automatic-manual functions: Offers up to 3 starting attempts, issues a 'starter failure alarm', and exits starting mode if unsuccessful. Achieves rated load start time between 5-10-15 seconds after initial success, depending on unit capacity.
(3). Emergency manual direct start function: Engage direct manual start during self-control device malfunctions, ensuring continuous operation in emergencies.
2. Automatic operation: When activated by a valid fire signal, the diesel fire pump autonomously initiates if the electric pump's power system is compromised. Upon restoration of electric power, a seamless transition to the electric pump is executed.
3. Automatic shutdown: The diesel fire pump gracefully powers down after the fire signal is resolved, ensuring safety and efficiency.
4. Battery self-charge function: Reliably charges the battery via diesel engine mains power, securing uninterrupted unit starts.
5. Perfect indicating system: Comprehensive indicators include ready-to-start, manual start, automatic start, operation, shutdown, battery charging, speed monitoring, oil pressure levels, lubrication and cooling systems status, and fuel levels, ensuring optimal monitoring and management.
6. Superior alarm and protection system: A robust system alerts for start failures, overspeed, low lubricant pressure, turbocharger issues, cooling water temperature, lubrication oil status, and battery health, keeping operations secure and efficient.
7. Advanced display systems: Showcases vital metrics including engine oil pressure, speed, battery charge current, and voltage for real-time performance assessment.
8. Direct-coupled excellence: Experience seamless integration with high-flexible coupling, combining diesel engine and water pump on a common base. This compact design ensures superior performance, minimal failure, reduced vibration, and effortless on-site installation.
9. High pressure and large flow capacity: Select from IS series single-stage, SOW series double-suction, or SHD series multistage pumps to tailor solutions for diverse fire-fighting scenarios.
10. Adjustable flow and working pressure: Diesel pumps equipped with mechanical or electronic speed governors allow for precise adjustments, aligning pump performance with actual requirements.
11. Pre-heating water temperature device: Equipped with an AC220V preheating system, this unit remains operational even in temperatures as low as 5ºC, ensuring readiness in adverse conditions.
12. Dual battery circuit: Guarantees reliability with automatic switch-over to a secondary battery in case of failure, ensuring constant power supply.
13. Maintenance-free battery: Enjoy the convenience of a battery that requires no regular fluid top-ups, ensuring hassle-free operation and maintenance.
14. Automatic Timing Inspection Test: Typically, fire systems remain in a vigilant standby mode. Our unit is designed to autonomously execute comprehensive device testing, ensuring standby condition readiness and issuing timely alerts whenever necessary.
Note: The above functionalities are offered with flexibility, allowing you to select based on your unique needs. Furthermore, we offer bespoke design solutions tailored specifically to meet your precise requirements.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our range of IS series single-stage single-suction pumps, SOW series single-stage double-suction pumps, SHD series multistage segment pumps, or ZW horizontal self-priming centrifugal pumps. Each option is engineered for optimal performance and reliability.
2. The Diesel Engine:
Internationally acclaimed diesel engines 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, ensuring a perfect match for your operational needs.
3. Other Accessories: Equip your system with our comprehensive array of accessories, including filtration systems, silencer systems, cooling systems, fuel tanks, common channel bases, base fuel tanks, radiators, batteries, and chargers.
4. The Control Cabinet: Featuring SBC and PLC programming, sensors, and an automatic control cabinet, your control solutions are both sophisticated and intuitive.
| 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 product features a globally recognized diesel engine brand, catering to a range of configurations—single-cylinder to six-cylinder—and offering versatile speed options: 1500r/min, 1800r/min, 2400r/min, and 3000r/min for optimal performance.
Experience the power of SEMHAI's Robust Professional Coupling Adaptors, meticulously engineered to seamlessly connect diesel engines to pump drives via a durable shaft mechanism.
These coupling adaptors are designed for ease of installation with standard coupling compatibility, eliminating the need for alignment tools. Crafted from polyamide nylon reinforced with fiberglass, they boast torsional rigidity and are maintenance-free. Perfect for any hydrostatic drive in construction, harvesting, and forestry equipment.
Discover the cutting-edge Diesel Plus Fire Pump Controllers from SEMHAI, expertly crafted to manage and oversee 12 or 24-volt diesel fire pump engines, representing the pinnacle of diesel engine control technology.
Outstanding Features
Adaptable Universal Supply Voltage ranging from 100Vac to 240Vac
Dual Output options—12 or 24 Vdc—conveniently selectable via DIP switches.
USB Port/Drive Connectivity for seamless communication
Effortlessly transfer data to and from a portable USB device.
Embedded Web Pages for intuitive interaction*
Access real-time status, data values, programmed set points, and historical records with ease.
Direct Ethernet Connection for streamlined data transfer with a computer*
RS485 Port available for enhanced connectivity*
Engage in MODBUS Communication; note that a COM Option is required for this feature*
Introducing the Innovative Big Volume Dual Wall Diesel Subbase Generator Fuel Tank
Our robust engine mounts are designed to isolate vibrations in marine and industrial settings, effectively reducing noise in both mobile and stationary equipment. Constructed from premium industrial-grade materials, these mounts provide long-lasting service and extend equipment longevity.
Our professional gearboxes are precision-engineered for direct diesel engine mounting and are versatile for speed modulation across diverse applications. Choose from an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side.
Industry - Our exceptional pumps serve the Boiler feed water system and cooling system, ensuring unparalleled efficiency and reliability.
Smelting - Designed for robustness, our pumps enhance the Water circulation system and cooling system, optimizing smelting operations.
Fire-fighting - Protect lives and property with our pumps, perfect for Fire hydrant systems, sprinkler systems, spray cooling system, foam system, and water monitor system.
Ocean - Harness the power of nature with our pumps, ideal for Wild water supply systems and the island freshwater collection systems.
Heating - Elevate your Heating systems with our pumps, crafted for Water circulation systems and cooling systems, providing superior performance.
Municipal - Be prepared with our pumps, essential for Emergency drainage and emergency water supply, ensuring municipal resilience.
Agriculture - Boost your agricultural productivity with our pumps, expertly designed for efficient Irrigation and drainage systems.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has proudly forged esteemed, long-term partnerships with several of the nation's leading pump-testing institutions, ensuring top-notch quality and reliability:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City,
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial based in Zhenjiang City,
The renowned Ministry of Agriculture Water Pump Quality Supervision and Testing Center in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center situated in Shanghai City, among others.
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