Efficient Operation and Hassle-free Maintenance:
SEMHAI Engines proudly presents an extensive range of robust diesel engines tailored for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines, designed in compliance with ISO 3046-1, cover a power spectrum featuring ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW. These engines are expertly crafted to drive centrifugal pumps at variable speeds, adhering closely to the unique propeller curve for optimal power consumption. Renowned for their reliability, these engines offer exceptional fuel efficiency, prolonged service intervals, and a remarkable service life. This optimized power density transforms our diesel engines into formidable and adaptable energy suppliers.
Performance Features
1. Three Exceptional Starting Functions:
(1). Manual Start Function: Seamlessly achieve manual-start through a manual-automatic interlock using the switch;
(2). Automatic-Manual Functions: Allows for three startup attempts, issuing a 'starter failure alarm' and automatically exiting the startup state if unsuccessful after three attempts; Achieve optimal load start times of 5-10-15 seconds (adjusted by unit capacity) following a successful initial start;
(3). Emergency Manual Direct Start Function: Activate the emergency manual direct start in the event of a self-controlled device failure.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump autonomously initiates operation if the electric pump cannot start due to power supply disruption or failure. It switches seamlessly to electric pump operation once the power supply system normalizes.
3. Automatic Shutdown: The diesel fire-fighting pump gracefully delays and shuts down automatically upon the disappearance of the fire signal.
4. Battery Self-Charge Function: Ensure a smooth startup with an automatic battery charging system powered by the diesel engine's mains electricity.
5. Comprehensive Indicating System: Ready to start, manual start, automatic start, unit operation, unit shutdown, battery charging, overspeed, low lubrication oil pressure, low turbocharger oil pressure, low engine lubricating oil temperature, high cooling system water temperature, low battery voltage, low fuel level, regular inspections.
6. Advanced Alarm and Protection System: Safeguards include alarms for start failures/three attempts, overspeed, low lubricant oil pressure, low turbocharger oil pressure, high water temperature, low lubricating oil temperature, automatic charging device failures, low/high battery voltage, and low fuel level.
7. Superior Display Systems: Display for engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-Coupled Excellence: The diesel engine and water pump are intricately connected via a high-flexible coupling on a common channel base, ensuring a compact structure with superior performance and minimal failure and vibration, easing on-site installation.
9. High Pressure and Large Flow Capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps to meet diverse fire-fighting requirements.
10. Adjustable Flow and Working Pressure: Equipped with mechanical or electronic speed governors, our diesel pumps offer versatility by adjusting the diesel engine speed to align pump flow and head with actual requirements.
11. Pre-heating Device for Water Temperature: The unit includes an AC220V cooling water preheating device, ensuring optimal operation even at temperatures below 5 ºC.
12. Double Battery Circuit: In case of one battery failure, an alternative battery automatically engages to maintain operation.
13. Maintenance-Free Battery: Enjoy the convenience of maintenance-free operation without the need for frequent fluid top-ups.
14. Automatic Timing Inspection Test: In the realm of fire protection, systems are often in a state of readiness. Our cutting-edge unit is engineered to autonomously conduct device testing under standby conditions. This ensures that the system remains vigilant and provides timely alerts, safeguarding against unforeseen emergencies.
Note: The functionalities mentioned above are adaptable and can be tailored to meet user preferences. Our expertise allows us to offer custom design solutions, finely tuned to the specific requirements you envision.
Selection Configuration of Diesel Engine
1. The Pump: Choose from a diverse array of pumps tailored for various needs. Options include the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the high-capacity SHD series multistage segment pump, and the versatile ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Equip your operations with internationally acclaimed diesel engines. Our selection includes single-cylinder, two-cylinder, four-cylinder, and six-cylinder diesel engines. They operate across a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring optimal performance to meet your demands.
3. Other Accessories: Enhance your system with an array of vital accessories including a state-of-the-art filtration system, efficient silencer system, superior cooling system, reliable fuel tank, common channel base, sturdy base fuel tank, powerful radiator, durable battery, and a dependable charger.
4. The Control Cabinet: Embrace the future with our sophisticated control cabinet options featuring SBC and PLC programming, precise sensors, and automatic control capabilities. These elements collectively ensure seamless and intuitive 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 |
We proudly feature internationally renowned diesel engines available in single, two, four, and six-cylinder configurations. Experience a versatile speed range with options at 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring optimal performance for varied applications.
SEMHAI's Robust professional coupling adaptors are meticulously engineered to seamlessly link diesel engines and drive pumps via a shaft, ensuring smooth and efficient operations.
Our coupling adaptors are designed for effortless integration; they connect effortlessly to a standard coupling for a hassle-free plug-in installation, requiring no alignment tools. Constructed from polyamide nylon reinforced with fibreglass, these adaptors are torsionally rigid and maintenance-free. Ideal for any hydrostatic drive, they excel in construction machines, harvesters, and forestry machinery.
The Diesel Plus Fire Pump Controllers by SEMHAI are crafted to oversee and regulate 12 or 24-volt diesel fire pump engines, representing the pinnacle of technological advancement in diesel engine controllers.
Key Features
Universal Supply Voltage ranging from 100Vac to 240Vac
Versatile Dual Output offering 12 or 24 Vdc, selectable via DIP Switch
Seamless Communications with USB Port / Drive
Effortlessly Transfer Data to or from a portable USB Device
Interactive Embedded Web Pages*
Instantly View Current Status, Data Values, Programmed Set Points, and Historical Data
Ethernet* Direct Connection for swift Data Transfer with a Computer
RS485 Port* for versatile connectivity
MODBUS Communication* - Note: COM Option must be ordered for this feature
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; a pinnacle of efficiency and reliability.
Our robust engine mounts are designed to effectively isolate vibrations for both marine and industrial applications, significantly reducing noise in mobile and stationary equipment. Crafted from premium industrial-grade materials, these mounts promise longevity and extend your equipment's life beyond standard mounts.
Our Professional gearboxes are expertly crafted for direct diesel engine mounting, designed for precise speed adjustment in a variety of applications. The input side accommodates an SAE housing with a fixed coupling (Rubber Block Drive) or an optional switchable BD or BDS clutch, offering unparalleled flexibility and performance.
Industry - Our cutting-edge pump is an essential component in boiler feed water systems and cooling systems, ensuring efficient and reliable operations across industrial landscapes.
Smelting - Designed to excel in smelting facilities, this pump optimizes water circulation and cooling systems, promoting seamless integration and enhanced productivity.
Fire-fighting - A critical solution for fire-fighting scenarios, our pump supports fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, guaranteeing robust performance when it matters most.
Ocean - Ideal for oceanic applications, it supports wild water supply systems and island freshwater collection systems, providing consistent supply in challenging marine environments.
Heating - Perfectly suited for heating applications, our pump streamlines water circulation and cooling systems, ensuring optimal efficiency and comfort.
Municipal - Engineered for municipal needs, this pump excels in emergency drainage and emergency water supply, offering dependable performance when urgency strikes.
Agriculture - A vital asset in agriculture, this pump enhances irrigation and drainage systems, maximizing efficiency and supporting sustainable farming practices.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring collaborations with distinguished domestic pump-testing entities, ensuring unmatched reliability and precision. These partnerships include major institutions such as:
The 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, situated in Zhenjiang City,
The renowned Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, based in Chongqing City,
And the prestigious Shanghai Mechanical and Electrical Products Quality Inspection Center, prominently located in Shanghai City, among others.
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