Efficient consumption and easy maintenance:
SEMHAI Engines presents an expansive range of diesel engines perfectly designed for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines cater to a variety of power needs, offering ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all adhering to ISO 3046-1 standards. These engines are meticulously approved for driving centrifugal pumps at variable speeds, aligning power consumption with the respective propeller curve. Noteworthy for their robust, reliable, and fuel-efficient operation, SEMHAI diesel engines stand out with long overhaul intervals and an extended service life. This enhanced power density transforms our engines into exceptionally efficient and versatile energy providers.
Performance features
1. Equipped with three state-of-the-art starting functions:
(1). Manual start function: Achieve manual-start functionality seamlessly through manual-automatic interlock with an easy-to-use switch;
(2). Automatic-manual functions: Facilitates up to three starting attempts, issuing a 'starter failure alarm' and exiting the starting state automatically if unsuccessful after three tries. Attain full-load operation within 5-10-15 seconds (depending on unit capacity) after a successful initial start;
(3). Emergency manual direct start function: Enables immediate manual start in emergencies when the self-controlled device malfunctions.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump springs into action, automatically activating when the fire pump motor's power supply is interrupted, phased, or fails. Once the power supply normalizes or the electric pumps are operational, it seamlessly switches to electric pump mode.
3. Automatic shutdown: Enjoy peace of mind as the diesel fire-fighting pump delays before shutting down automatically once the fire signal ceases.
4. The battery self-charge function: Ensure consistent and reliable starts with automatic battery charging via the diesel engine's electrical mains power.
5. Comprehensive indicating system: Stay informed with indications for ready status, manual and automatic start, unit operation, shutdown, battery charging, and alerts for speeding, low lubrication oil pressure, low turbocharger oil pressure, low engine lubricating oil temperature, high cooling system water temperature, low battery voltage, and low fuel level. Includes a regular inspection feature.
6. Robust alarm or protection system: Features alarms for start failure after three attempts, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failure, low and high battery voltage, and low fuel level.
7. State-of-the-art display systems: Monitor critical metrics such as engine oil pressure, engine speed, battery charge current, and battery charging voltage, all displayed with precision.
8. Direct-coupled design: Experience seamless integration with a high-flexible coupling connecting the diesel engine and water pump on a common channel base. This compact structure ensures superior performance, fewer failures, reduced vibration, and facilitates effortless on-site installation.
9. High pressure and significant flow capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps to address diverse fire scenarios effectively.
10. Adjustable flow and working pressure: Optimize performance with diesel pumps featuring mechanical or electronic speed governors, allowing you to adjust the diesel engine speed to match actual pump flow and head requirements.
11. Pre-heating water temperature device: Our unit includes an AC220V cooling water preheating device, ensuring flawless operation even in environments below 5 ºC.
12. Dual battery circuit: Ensure uninterrupted operation with automatic activation of an alternate battery in case of a primary battery failure.
13. Maintenance-free battery: Enjoy hassle-free operation without the need for frequent fluid top-ups.
14. Automatic Timing Inspection Test: In any fire safety system, maintaining a state of readiness is crucial. Typically, the system remains in a standby mode, but our advanced solution autonomously conducts thorough device tests to ensure optimal standby conditions. It promptly issues alerts, guaranteeing timely intervention and peace of mind.
Note: The aforementioned functionalities are meticulously designed to cater to varying user requirements. We pride ourselves in providing tailor-made solutions, adapting each design to meet specific and unique needs.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our versatile range including the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the powerful SHD series multistage segment pump, and the efficient ZW horizontal self-priming centrifugal pump. Each is engineered for excellence.
2. The Diesel Engine:
We offer an array of international renowned diesel engines, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. Our engines support a wide speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring power and reliability for every application.
3. Other Accessories: Enhance your system with our comprehensive range of accessories including a filtration system, silencer system, advanced cooling system, spacious fuel tank, common channel base, base fuel tank, efficient radiator, battery, and charger. Each accessory is designed to optimize performance.
4. The Control Cabinet: Experience state-of-the-art control with our SBC and PLC programming. Our automatic control cabinet features a sophisticated sensor system, offering seamless integration and unparalleled precision in 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 |
Our premium offering includes an internationally renowned brand of diesel engines featuring versatile configurations including single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. These engines boast impressive speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring robust performance across diverse applications.
Introducing the SEMHAI Robust Professional Coupling Adaptors — expertly engineered to seamlessly connect diesel engines with pump shafts. These adaptors ensure efficient power transfer and reliable operation, reflecting our commitment to quality and precision.
Our coupling adaptors are ingeniously designed to connect effortlessly to standard couplings, facilitating a straightforward plug-in installation devoid of alignment tools. Constructed from polyamide nylon reinforced with fiberglass, they offer exceptional torsional rigidity and are maintenance-free. Ideal for hydrostatic drives in construction machinery, harvesters, and forest machinery, these adaptors are the epitome of engineering excellence.
SEMHAI's Diesel Plus Fire Pump Controllers are at the forefront of technological advancement, meticulously designed to control and monitor 12 or 24-volt diesel fire pump engines. These controllers integrate cutting-edge features to enhance reliability and performance, setting a new standard in diesel engine management.
Features
Adaptable to a Universal Supply Voltage, these systems accommodate a range from 100Vac to 240Vac, catering to various power requirements with ease.
Featuring Dual Output capabilities, our products offer 12 or 24 Vdc options, which are easily selectable via a DIP switch, providing versatile power solutions.
Integrated USB Port / Drive for seamless communication and data management.
Facilitate effortless data transfer to and from portable USB devices, ensuring smooth operations and efficiency in data handling.
Embedded Web Pages* offer an innovative approach to monitoring and managing your system's functions.
With our intuitive web interface, view current status, data values, programmed set points, and historical data with remarkable ease.
Ethernet* connectivity for direct computer interfacing and data transfer, making integration and communication a breeze.
Utilize the RS485 Port* for enhanced communication capabilities, supporting seamless data exchange.
MODBUS Communication * Please note that the COM Option must be ordered separately to enable this advanced communication function.
Introducing our New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for superior capacity and reliability.
Our robust engine mounts are engineered to effectively isolate vibrations in marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Made with premium industrial-grade materials, they ensure durability and longevity, extending the life of your valuable equipment.
Our professional gearboxes are precision-designed for direct mounting on diesel engines. These gearboxes are versatile, suitable for accelerating or decelerating speeds across various applications. On the input side, we offer either an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch, providing adaptability and performance excellence.
Industry: From boiler feed water systems to sophisticated cooling systems, experience unparalleled performance with our expertly designed fire pump.
Smelting: Elevate your operations with our pump's water circulation and cooling system capabilities, tailor-made for the demanding environment of smelting.
Fire-fighting: Safeguard your infrastructure with our fire pump's seamless integration into fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, ensuring optimal performance when it counts.
Ocean: Harness the power of our fire pump for wild water supply systems and island freshwater collection systems, delivering unmatched reliability in oceanic conditions.
Heating: Enhance your heating operations with our pump's efficient water circulation and cooling system solutions, designed to meet the highest standards.
Municipal: Depend on our fire pump for critical emergency drainage and water supply, ensuring preparedness and reliability in municipal applications.
Agriculture: Achieve superior irrigation and drainage with our fire pump, expertly suited for agricultural needs, promoting efficiency and sustainability.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged robust, long-term partnerships with several esteemed domestic pump-testing institutions, ensuring unmatched quality and performance. Our key associates are:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City,
The esteemed Irrigation Machinery Products Quality Inspection Center of the Machinery Industry based in Zhenjiang City,
The renowned Ministry of Agriculture's Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the highly regarded Shanghai Mechanical and Electrical Products Quality Inspection Center right here in Shanghai City, among others.
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