Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents a diverse array of diesel engines, meticulously designed for stationary applications encompassing centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines, adhering to ISO 3046-1 standards, are available in power ranges such as ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW. Expertly approved for variable speed centrifugal pumps, they feature power consumption synchronized with the respective propeller curve. Renowned for their robust build and fuel-efficient performance, SEMHAI diesel engines promise exceptional reliability, extended overhaul intervals, and prolonged service life. This enhanced power density transforms our engines into agile and efficient energy suppliers, meeting your diverse needs.
Performance Features
1,With 3 types of perfect starting-functions:
(1).Manual start function: Effortless manual-start is achievable with manual-automatic interlock through the switch;
(2).Automatic-manual functions: Offering 3 starting trials, it issues a 'starter failure alarm' and automatically halts the start process if unsuccessful after 3 attempts. The time to reach rated load starts is 5-10-15 seconds (depending on unit capacity) after a successful initial start;
(3).Emergency manual direct start function: Enables a manual direct start in emergencies when the self-controlled device faces any malfunction.
2. Automatic operation: Seamlessly transitioning to automatic operation, the diesel fire pump initiates automatically upon receiving a valid fire signal, especially when the electric pump's power supply system is interrupted or fails. The system switches back to electric pump operation once normal power supply is restored.
3. Automatic shutdown: The diesel fire-fighting pump smartly delays and shuts down automatically when the fire signal dissipates.
4. The battery self-charge function: Ensures seamless startup by automatically charging the battery using the diesel engine’s electrical mains power.
5. Perfect indicating system: Comprehensive indicators for ready status, manual start, automatic start, operation, shutdown, battery charging, speeding, and critical alerts like low oil pressure, high water temperature, and low fuel level ensure operational confidence.
6. Perfect alarm or protection system: Equipped with alarms and protection features for failed starts, overspeed, low lubricant and turbocharger oil pressure, high coolant temperature, and more, ensuring utmost safety and reliability.
7.Perfect display systems: Provides clear displays for critical parameters like engine oil pressure, engine speed, battery current, and charging voltage, enabling informed operational decisions.
8.Direct-coupled: The diesel engine and water pump, connected via a high-flexible coupling on a common channel base, exhibit a compact structure, superb overall performance, reduced failures and vibrations, and facilitate convenient on-site installation.
9.With high pressure and big flow capacity: Utilizing IS series single-stage, SOW series double-suction, and SHD series multistage pumps, it adeptly caters to diverse fire scenarios with remarkable efficacy.
10.Be adjustable of flow and working pressure: Diesel pumps, equipped with mechanical or electronic speed governors, allow for precise adjustments to the diesel engine speed, aligning pump flow and head with actual data seamlessly.
11.With pre-heating device of water temperature: Outfitted with an AC220V cooling water preheating device, it assures optimal functionality even in environments as cold as 5 ºC.
12.Double battery circuit: A fail-safe design, allowing automatic switch to a secondary battery in the event of primary battery failure.
13.Maintenance-free battery: Enjoy the convenience of a battery that requires no frequent fluid additions, offering trouble-free operation.
14. Automatic Timing Inspection Test: In the realm of fire safety, reliability is paramount. Our fire system, typically in standby mode, features an advanced automatic timing inspection test. This ensures that the unit seamlessly performs device checks during standby conditions, providing timely warnings to ensure safety and efficiency.
Note: Tailor your experience with our versatile range of customizable functions! Depending on your requirements, all the above features can be selected, and we are pleased to offer bespoke designs tailored to your specific needs, ensuring a solution that fits you perfectly.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our meticulously engineered options: 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. Experience unparalleled performance and efficiency for any application.
2. The Diesel Engine:
Discover power and reliability with our diesel engines, sourced from internationally renowned brands. Options include single-cylinder, two-cylinder, four-cylinder, and six-cylinder models, all ranging in speed from 1500r/min to a robust 3000r/min, catering to your diverse operational needs.
3. Other Accessories: Enhance your setup with a comprehensive suite of accessories including a filtration system, silencer system, cooling system, fuel tank, common channel base, base fuel tank, radiator, battery, and charger. These components ensure that your diesel engine assembly operates smoothly and efficiently.
4. The Control Cabinet: Featuring cutting-edge technology, our control cabinets boast SBC, PLC programming, sensors, and an automatic control system. These are designed for seamless operation and precision control, adapting to your unique specifications and operational requirements.
| 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 |
Renowned globally, our diesel engines feature cutting-edge technology with options ranging from single to six-cylinder configurations. Optimize your performance with speed variations at 1500, 1800, 2400, and 3000 RPM.
Experience unparalleled performance with SEMHAI's robust coupling adaptors, expertly engineered to seamlessly connect diesel engines to drive pumps with precision.
Our coupling adaptors offer hassle-free plug-in installation, eliminating the need for alignment tools. Constructed from polyamide nylon reinforced with fibreglass, they provide torsional rigidity and require no maintenance. Ideal for hydrostatic drives in construction, harvesting, and forest machinery.
SEMHAI presents the Diesel Plus Fire Pump Controllers—state-of-the-art systems engineered to command and oversee 12 or 24 volt diesel fire pump engines, setting a new standard in advanced engine control technology.
Outstanding Features
Versatile Universal Supply Voltage spanning 100Vac to 240Vac
Adaptable Dual Output at 12 or 24 Vdc, effortlessly switchable via DIP Switch
Efficient Communication with USB Port / Drive
Streamlined Data Transfer capabilities to and from portable USB devices
Innovative Embedded Web Pages*
Easily view Current Status, Data Values, Programmed Set Points, and Historical Data
Ethernet* Direct Connection enabling seamless Data Transfer with Computers
RS485 Port* for enhanced connectivity
MODBUS Communication * COM Option available for enhanced functions
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; crafted for superior performance.
Our ultra-durable engine mounts meticulously isolate vibrations for marine and industrial use, significantly reducing noise in both mobile and stationary setups. Constructed with top-tier industrial materials, these mounts ensure longevity and enhance your equipment's lifespan.
Our professional-grade gearboxes are engineered for direct diesel engine integration, expertly designed to modulate speed across various applications. Input options include an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch.
Industry - Elevate your operational efficiency with our top-tier solutions tailored for boiler feed water systems and cooling systems, ensuring reliable and consistent performance.
Smelting - Enhance your water circulation and cooling systems with advanced technology that optimizes performance, resulting in seamless and efficient operations.
Fire-fighting - Safeguard lives and properties with our comprehensive fire-fighting solutions, including robust fire hydrant systems, responsive sprinkler systems, efficient spray cooling systems, versatile foam systems, and powerful water monitor systems.
Ocean - Discover reliable solutions for wild water supply systems and island freshwater collection systems, providing consistent and sustainable water management in oceanic environments.
Heating - Optimize your heating operations with state-of-the-art water circulation and cooling systems, designed to maximize efficiency and reliability.
Municipal - Ensure preparedness with our emergency drainage and water supply solutions, offering rapid and dependable responses to municipal needs.
Agriculture - Empower your agricultural operations with our cutting-edge irrigation and drainage systems, designed to enhance productivity and ensure efficient water management.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated enduring partnerships with numerous prestigious national pump-testing organizations, including:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center, situated in Chongqing City,
And the Shanghai Mechanical and Electrical Products Quality Inspection Center, nestled in the vibrant metropolis of Shanghai, among others.
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