Efficient consumption and easy maintenance:
At SEMHAI Engines, we proudly present our extensive collection of diesel engines, meticulously designed for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines come in power ranges from ION power of 415 kW to an impressive 920 kW, or ICXN power from 377 kW to 836 kW, all conforming to ISO 3046-1 standards. These engines are expertly approved for driving centrifugal pumps at variable speeds, with power consumption finely tuned to adhere to respective propeller curves. Renowned for their robust and reliable construction, SEMHAI diesel engines are the epitome of fuel efficiency, ensuring prolonged service life and extended overhaul intervals. With optimized power density, our diesel engines stand as paragons of efficiency and flexibility, transforming them into indispensable energy suppliers.
Performance features
1. Discover the excellence of three innovative starting-functions:
(1).Manual start function: Seamlessly switch between manual and automatic modes with our manual-automatic interlock feature;
(2).Automatic-manual functions: Experience the convenience of three starting attempts. In case of unsuccessful starts, a "starter failure alarm" is initiated, exiting the starting state automatically. Post successful initiation, the rated load start time adjusts between 5-10-15 seconds, tailored to unit capacity;
(3).Emergency manual direct start function: Ensure operational continuity with manual direct start, ideal for emergencies when self-controlled devices encounter issues.
2. Automatic operation: Instinctively responsive, the diesel fire pump springs into action upon receiving a valid fire signal. If the pump fails to start due to power system interruptions, it autonomously takes over. Once the power system stabilizes or electric pumps resume, it effortlessly transitions back to the electric pump.
3. Automatic shutdown: Enjoy peace of mind with an automatic shutdown feature that activates when the fire signal ceases, ensuring safety and efficiency.
4. The battery self-charge function: Experience uninterrupted performance with automatic battery charging via the diesel engine's electrical mains, guaranteeing a seamless start every time.
5. Perfect indicating system: Stay informed with comprehensive indicators for readiness, manual and automatic start, operation, shutdown, battery charging, various pressures and temperatures, voltage, and fuel levels, accompanied by regular inspection alerts.
6. Perfect alarm or protection system: Safeguard operations with alarms and protections for multiple conditions including failed starts, overspeed, pressure and temperature irregularities, charging device issues, voltage fluctuations, and low fuel levels.
7. Perfect display systems: Monitor crucial parameters with displays for engine oil pressure, engine speed, and battery charging metrics, keeping you in control.
8. Direct-coupled: Benefit from a high-flexible coupling connecting the diesel engine and water pump, ensuring a compact, high-performance structure with minimal failure and vibration, and easy on-site installation.
9. With high pressure and big flow capacity: Tailor-made solutions with IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps, accommodating diverse fire scenarios with precision.
10. Be adjustable of flow and working pressure: Adapt with ease using diesel pumps equipped with mechanical or electronic speed governors, allowing speed adjustments to match actual pump flow and head requirements.
11. With pre-heating device of water temperature: Ensure consistent performance with an AC220V cooling water preheating device, maintaining optimal conditions even in temperatures below 5 ºC.
12. Double battery circuit: Enjoy reliability with a double battery circuit, automatically engaging a backup battery if one fails.
13. Maintenance-free battery: Experience the convenience of a maintenance-free battery, eliminating the need for frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: In the world of fire safety, readiness is paramount. Our fire systems, typically in standby mode, are equipped to automatically conduct device testing for standby conditions. This ensures your system remains vigilant and issues timely warnings to keep you one step ahead.
Note: Our offerings are flexible and tailored to meet individual user requirements. The above functions can be selected based on your specific needs, and we are more than capable of crafting customized designs for unique demands.
Selection Configuration of Diesel Engine
1. The Pump: Choose from a variety of sophisticated options including the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, the robust SHD series multistage segment pump, or the versatile ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Our selection includes internationally renowned diesel engine brands that offer a range of configurations: single-cylinder, two-cylinder, four-cylinder, and six-cylinder options, with speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min. These engines are designed for superior performance and reliability.
3. Other Accessories: Equip your system 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. Each component is crafted to enhance the efficiency and durability of your setup.
4. The Control Cabinet: Featuring advanced technologies such as SBC, PLC programming, and sensors, our automatic control cabinet is engineered to provide seamless management and monitoring, ensuring your system operates at peak efficiency.
| 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 |
Experience the efficiency and power of internationally renowned diesel engines! Our range includes single-cylinder, two-cylinder, four-cylinder, and six-cylinder diesel engines with a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring a perfect match for any application.
SEMHAI presents robust and professional coupling adaptors that seamlessly connect diesel engines to drive pumps via a shaft, ensuring reliability and efficiency.
Our coupling adaptors are engineered for superior performance, connecting effortlessly to a standard coupling for quick plug-in installation—no aligning tools needed! Crafted from polyamide nylon reinforced with fiberglass, they boast torsional rigidity and are entirely maintenance-free. Ideal for any hydrostatic drive in construction machines, harvesters, and forestry machinery.
Discover the Diesel Plus Fire Pump Controllers from SEMHAI, crafted to control and monitor 12 or 24 volt diesel fire pump engines, representing some of the most advanced technology available in diesel engine control.
Features
Universal Supply Voltage ranging from 100Vac to 240Vac ensures flexibility and compatibility with various systems.
Dual Output options of 12 or 24 Vdc are easily selectable with a DIP switch for ultimate convenience.
Communications USB Port / Drive for seamless integration and data management.
Effortlessly transfer data to and from a portable USB device, streamlining information management.
Embedded Web Pages* for intuitive navigation and monitoring.
Conveniently view current status, data values, programmed set points, and historical data all in one place.
Ethernet* Direct Connection allows for seamless data transfer with a computer, enhancing connectivity.
RS485 Port* for advanced communication options.
MODBUS Communication * Note: COM Option must be ordered for this function, unlocking expansive communication capabilities.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for maximum efficiency and reliability.
Our robust engine mounts are engineered to isolate vibrations for marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. Constructed from premium industrial-grade materials, these mounts are designed to last longer than cheaper alternatives, thereby extending the life of your essential equipment.
Our professional gearboxes are expertly crafted for direct mounting on diesel engines, tailored to accelerate or reduce speed across a myriad of applications. The input side accommodates either an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for optimal performance.
Industry - Our Efficient Diesel Engine Fire Pump is expertly designed for use in boiler feed water systems and advanced cooling systems, ensuring optimal performance and reliability.
Smelting - Enhance your smelting operations with our pump's capability in water circulation and cooling systems, delivering unparalleled efficiency and cooling precision.
Fire-fighting - Equip your fire safety infrastructure with our state-of-the-art pump, perfect for fire hydrant systems, sprinkler systems, sophisticated spray cooling systems, foam systems, and water monitor systems.
Ocean - Revolutionize oceanic operations with our pump's unmatched capacity for wild water supply systems and island freshwater collection systems.
Heating - Optimize heating processes with our pump's superior performance in water circulation and cooling systems, providing consistent and reliable results.
Municipal - Safeguard your municipality with our pump's outstanding capabilities in emergency drainage and water supply, prepared to handle any urgent situation with ease.
Agriculture - Transform your agricultural practices with our pump's exceptional efficiency in irrigation and drainage systems, ensuring abundant and dependable water supply for your crops.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has built solid, long-term partnerships with numerous leading domestic pump-testing authorities, ensuring our products meet the highest standards. Our esteemed collaborators include:
The National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City, continues to be a trusted partner.
The prestigious Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City exemplifies our commitment to excellence.
We collaborate with the renowned Ministry of Agriculture's Water Pump Quality Supervision and Testing Center situated in Chongqing City for top-tier quality assurance.
Our association with the Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City further underscores our dedication to superior quality and innovation.
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