Experience unmatched efficiency and effortless upkeep:
SEMHAI Engines presents an extensive range of diesel engines designed for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and generators. These engines offer a variety of power options such as ION power ranging from 415 kW to 920 kW, and ICXN power from 377 kW to 836 kW, all adhering to ISO 3046-1 standards. Our engines are fully approved for driving centrifugal pumps at variable speeds, with power consumption aligned with specific propeller curves. SEMHAI's durable diesel engines are celebrated for their dependable, fuel-efficient performance, providing enhanced efficiency through extended service intervals and a long operational lifespan. This optimized power density transforms our diesel engines into highly efficient and adaptable energy sources.
Performance Features
1. Equipped with three superior starting functions:
(1). Manual Start Function: Initiate the manual-start function effortlessly with a manual-automatic interlock switch;
(2). Automatic-Manual Functions: Enjoy the flexibility of three starting attempts; if unsuccessful, receive a 'starter failure alarm' and automatically exit the starting state. Achieve the rated load in 5-10-15 seconds (adjusted by unit capacity) upon the first successful start;
(3). Emergency Manual Direct Start Function: In case of self-controlled device failure, manually initiate the start function for emergencies.
2. Seamless Automatic Operation: Upon receiving a fire signal, the diesel fire pump autonomously begins operation if the power supply to the fire pump motor is interrupted or fails. Once the electrical system is restored or electric pumps become operable, it seamlessly switches back to electric pumps.
3. Automatic Shutdown: Experience automatic and timely shutdown of the diesel fire-fighting pump when the fire signal is no longer detected.
4. Integrated Battery Self-Charge Function: The battery charges automatically through the diesel engine's electrical mains, ensuring a smooth start every time.
5. Comprehensive Indicating System: Stay informed at all times with indicators for ready-to-start, manual and automatic start, unit operation, shutdown, battery charging, overspeeding, low oil pressure, low turbocharger oil pressure, low oil temperature, high cooling system water temperature, low battery voltage, and fuel level, and regular inspections.
6. Advanced Alarm and Protection System: Safeguard your equipment with alarms and protections against starting failures, overspeed, low lubricant oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device malfunctions, low and high battery voltage, and low fuel level.
7. Superior Display Systems: Monitor essential parameters such as engine oil pressure, engine speed, battery charge current, and battery charging voltage with precision.
8. Direct-Coupled Design: Benefit from the high-flexibility coupling connecting the diesel engine and water pump on a common channel base. This design ensures a compact structure, excellent overall performance, minimized failure and vibration, and easy 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 fulfill the demands of various fire scenarios.
10. Adjustable Flow and Working Pressure: Diesel pumps equipped with a mechanical or electronic speed governor allow for speed adjustments to match the pump flow and head with actual data requirements.
11. Integrated Water Temperature Pre-Heating Device: The unit comes with an AC220V cooling water preheating device, ensuring reliable operation even in environments with temperatures below 5 °C.
12. Double Battery Circuit: Ensure uninterrupted operation by automatically switching to an alternate battery in case of failure.
13. Maintenance-Free Battery: Enjoy the convenience of a maintenance-free battery, eliminating the need for frequent fluid replenishments.
14. Automatic Timing Inspection Test: Our fire system is typically in standby mode, but with our cutting-edge technology, the unit autonomously conducts device testing to ensure optimal standby conditions and provides timely alerts for any discrepancies.
Note: The aforementioned functionalities are adaptable to meet user preferences. We also offer bespoke designs tailored to your exact specifications, ensuring a perfect fit for your unique requirements.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our range of top-notch pumps including the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the highly efficient ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
We proudly offer international renowned brands of diesel engines available in various configurations such as single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Our engines operate at versatile speed ranges: 1500r/min, 1800r/min, 2400r/min, and 3000r/min, providing robustness and reliability in every situation.
3. Other Accessories: Enhance your pump system with our comprehensive range of accessories, including 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, durable battery, and reliable charger.
4. The Control Cabinet: Featuring SBC, sophisticated PLC programming, cutting-edge sensors, and an automatic control cabinet, our control solutions deliver unparalleled precision and ease of use, ensuring seamless 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 |
Featuring internationally acclaimed diesel engines, our range includes single-cylinder, two-cylinder, four-cylinder, and six-cylinder models, with versatile speed options: 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
SEMHAI's robust professional coupling adaptors seamlessly connect diesel engines to drive pumps, ensuring efficient power transfer through a precision-engineered shaft.
Our coupling adaptors effortlessly connect to standard couplings, offering a hassle-free plug-in installation with no alignment tools necessary. Crafted from polyamide nylon reinforced with fiberglass, they boast torsional rigidity and are maintenance-free. Ideal for hydrostatic drives in construction equipment, harvesters, and forestry machinery.
The innovative Diesel Plus Fire Pump Controllers by SEMHAI are engineered to expertly control and monitor 12 or 24 volt diesel fire pump engines, representing the pinnacle of diesel engine control technology.
Notable Features
Universal Supply Voltage adaptable from 100Vac to 240Vac
Flexible Dual Output of 12 or 24 Vdc - Selectable via DIP Switch
Integrated Communications 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
Seamless Ethernet* Direct Connection / Data Transfer with a Computer
RS485 Port* for versatile connectivity
Advanced MODBUS Communication * Order COM Option for activation
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank;
Engineered to robustly isolate vibrations, our marine and industrial engine mounts significantly reduce noise in both mobile and stationary equipment. Made with premium-grade materials, these mounts outlast cheaper alternatives, thereby extending your equipment's lifespan.
Our expertly crafted professional gearboxes are tailored for direct mounting on diesel engines, facilitating either speed acceleration or reduction across various applications. On the input side, they accommodate an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD/BDS clutch.
Industry - Our top-of-the-line pump is an ideal choice for boiler feed water systems and cooling systems, ensuring seamless and efficient operations.
Smelting - This pump excels in water circulation and cooling systems, offering reliable performance to keep your smelting processes running smoothly.
Fire-fighting - Perfectly suited for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, this pump is essential for robust fire safety and prevention.
Ocean - Designed to address the unique challenges of ocean environments, this pump efficiently manages wild water supply systems and island freshwater collection systems.
Heating - Optimize your heating operations with our pump, perfectly tailored for efficient water circulation systems and cooling systems.
Municipal - Experience dependable performance for emergency drainage and emergency water supply needs with our state-of-the-art pump.
Agriculture - Enhance your irrigation and drainage systems with this efficient pump, crafted to meet the demanding needs of modern agriculture.
Expert Professional Collaboration Agencies
Shanghai Semhai Pump Co., Ltd. prides itself on having forged enduring partnerships with several esteemed domestic pump-testing authorities, including:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City,
The reputable Ministry of Agriculture, Water Pump Quality Supervision, and Testing Center situated in Chongqing City,
And the eminent Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among others.
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