Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents a diverse and comprehensive range of diesel engines tailored for stationary applications. Be it centrifugal pumps, hydraulic pumps, air compressors, or air generators, our engines stand ready to deliver unparalleled performance. Ranging from ION power of an impressive 415 kW to 920 kW, and ICXN power spanning from 377 kW to 836 kW, all in adherence to ISO 3046-1 standards. These engines are meticulously approved for driving centrifugal pumps at variable speeds, ensuring optimal power consumption harmonizing with the respective propeller curve. The SEMHAI diesel engines, renowned for their robust, reliable, and fuel-efficient operation, promise extraordinary efficiency through extended overhaul intervals and prolonged service life. This exemplary power density transforms our diesel engines into exceptionally efficient and versatile energy providers.
Performance Features
1. Comprehensive Starting Functions in Three Modes:
(1). Manual Start Function: Seamlessly achieve manual starting through manual-automatic interlocking via a switch;
(2). Automatic-Manual Functions: Enabling up to three starting attempts, a 'starter failure alarm' is activated and the starting process ceases if unsuccessful after three tries. Upon a successful initial start, the pump reaches its designated load within 5-10-15 seconds, contingent on unit capacity size;
(3). Emergency Manual Direct Start Function: In the event of self-controlled device failures, a manual direct start function grants immediate emergency activation.
2. Seamless Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump initiates automatically, even amidst power interruptions or failures in the fire pump motor system. Once normal power resumes or electric pumps are operational, it effortlessly switches to the electric pump.
3. Automatic Shutdown: When the fire signal ceases, the diesel fire-fighting pump gracefully initiates an automatic shutdown with a delay.
4. Battery Self-Charge Function: The battery undergoes automatic charging from the diesel engine's electrical mains, ensuring the unit is always ready for a smooth start.
5. Comprehensive Indicating System: Equipped to indicate readiness to start, manual start, automatic start, unit operation, shutdown, battery charging, over-speeding, low lubrication oil pressure, turbocharger oil pressure, engine oil temperature, high cooling system water temperature, low battery voltage, low fuel level, and routine inspections.
6. Advanced Alarm and Protection System: Features protection against three unsuccessful start attempts, over-speeding, low lubricant and turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failures, low/high battery voltage, and low fuel level.
7. Superior Display Systems: Offering precise display of engine oil pressure, engine speed, battery charge current, and charging voltage.
8. Direct-Coupled Design: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a common channel base, ensuring compact structure, outstanding performance, reduced failures and vibrations, and ease of on-site installation.
9. High Pressure and Large Flow Capacity: Employing IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps, ensuring adaptability to diverse fire scenarios.
10. Adjustable Flow and Working Pressure: Equipped with mechanical or electronic speed governors, enabling the diesel engine speed to be adjusted when pump flow and head do not align with actual data.
11. Water Temperature Pre-Heating Device: Fitted with an AC220V cooling water pre-heater, guaranteeing optimal operation even in environments below 5 ºC.
12. Dual Battery Circuit: In the event of one battery group failing, the system automatically activates the alternative group.
13. Maintenance-Free Battery: Engineered to operate without the frequent need for supplemental fluid, ensuring hassle-free maintenance.
14. Automatic Timing Inspection Test: Our cutting-edge fire system, typically in a vigilant standby mode, is designed to autonomously execute comprehensive device testing. It ensures readiness with precise standby conditions and delivers timely warnings for utmost safety and efficiency.
Note: The functions mentioned above are customizable to align with specific user preferences. We stand ready to craft a bespoke design tailored to your unique requirements, ensuring that every detail meets your exact specifications.
Selection Configuration of Diesel Engine
1. The Pump: Our range includes the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump, each engineered for exceptional performance.
2. The Diesel Engine:
We proudly offer internationally renowned brands of diesel engines, available in configurations ranging from single-cylinder to six-cylinder options. These engines operate at various speed ranges: 1500r/min, 1800r/min, 2400r/min, and 3000r/min, delivering reliable power and efficiency.
3. Other Accessories: Our comprehensive suite includes a state-of-the-art filtration system, advanced silencer system, efficient cooling system, robust fuel tank, versatile common channel base, integrated base fuel tank, high-performance radiator, reliable battery, and charger; ensuring seamless operation.
4. The Control Cabinet: Featuring SBC, advanced PLC programming, and precision sensors, our automatic control cabinet offers unparalleled control and responsiveness for seamless system management.
| 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 |
Featuring globally renowned diesel engines with options ranging from single-cylinder to robust six-cylinder models, these engines offer exceptional versatility with speed ranges of 1500r/min, 1800r/min, 2400r/min, and an impressive 3000r/min.
SEMHAI's Exceptional and Durable professional coupling adaptors are expertly engineered to seamlessly link diesel engines to drive pumps, ensuring optimal performance with every use.
Our coupling adaptors offer a straightforward plug-in installation, effortlessly connecting to standard couplings without the need for alignment tools. Crafted from polyamide nylon reinforced with fibreglass, these adaptors are torsionally rigid and maintenance-free, perfect for hydrostatic drives in construction, harvesting, and forestry machinery.
The innovative Diesel Plus Fire Pump Controllers from SEMHAI stand at the forefront of technology, engineered to precisely control and monitor 12V or 24V diesel fire pump engines, representing the pinnacle of diesel engine controller advancement.
Outstanding Features
Accommodates a Universal Supply Voltage from 100Vac to 240Vac, offering unmatched flexibility and compatibility.
Dual Output selections of 12 or 24 Vdc, easily adjustable via DIP Switch for user convenience.
Integrated Communications USB Port / Drive for seamless connectivity.
Effortlessly Transfer Data to and from portable USB Devices, ensuring easy data management.
Fully Embedded Web Pages* offer easy access to a wealth of information.
Instantly View Current Status, Data Values, Programmed Set Points, and History, all at your fingertips.
Ethernet* provides Direct Connection and Data Transfer capabilities with a computer, ensuring streamlined operations.
Equipped with an RS485 Port* for advanced connectivity solutions.
MODBUS Communication available * COM Option must be ordered for this function, enhancing system integration.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for superior performance and reliability.
Our robust engine mounts provide exceptional vibration isolation for both marine and industrial engines, significantly reducing noise in mobile and stationary equipment. Constructed from premium industrial-grade materials, these mounts ensure prolonged service life, safeguarding your equipment for the long term.
Expertly engineered professional gearboxes are designed for seamless direct mounting on diesel engines, offering reliable speed acceleration or reduction across a multitude of applications. The input side accommodates either an SAE housing and fixed coupling (Rubber Block Drive) or a versatile switchable BD or BDS clutch.
Industry - Our High Performance Flood Pump with Packing Gland Seal and Diesel Engine is a vital asset in industrial settings, serving crucial functions like powering boiler feed water systems and cooling systems with unmatched reliability.
Smelting - In the demanding environment of smelting operations, this pump excels in maintaining efficient water circulation and cooling systems, ensuring optimal performance and safety.
Fire-fighting - This pump is an indispensable component of comprehensive fire-fighting solutions. It enhances the efficacy of fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, providing robust and dependable fire protection.
Ocean - Perfect for oceanic applications, it supports wild water supply systems and island freshwater collection systems, ensuring sustainability and resilience in harsh marine environments.
Heating - The pump plays a pivotal role in heating systems by facilitating seamless water circulation and cooling, contributing to energy efficiency and system longevity.
Municipal - Tailored for municipal use, this pump is an essential tool for emergency drainage and water supply operations, delivering rapid response capabilities in critical situations.
Agriculture - Engineered for agricultural efficiency, it provides reliable performance in irrigation and drainage systems, boosting productivity and resource management.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has fostered enduring partnerships with numerous prominent domestic pump-testing institutions. Our strategic collaborations include esteemed entities such as:
The National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City, renowned for its rigorous testing protocols,
The distinguished Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City, ensuring top-notch inspection standards,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, a testament to our commitment to agricultural excellence,
And the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, a beacon of comprehensive quality assurance practices.
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