Unmatched Efficiency and Effortless Maintenance:
SEMHAI Engines presents an extensive portfolio of diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines boast diverse power ranges, from the formidable ION power of 415 kW to 920 kW, or the versatile ICXN power of 377 kW to 836 kW, conforming to ISO 3046-1. Designed for propelling centrifugal pumps at variable speeds, these engines ensure power consumption aligns perfectly with the respective propeller curve. The robust SEMHAI diesel engines are celebrated for their unwavering reliability and fuel efficiency, marked by extended overhaul intervals and impressive service life. This optimized power density elevates our diesel engines to the pinnacle of efficiency and flexibility, making them the ultimate energy providers.
Outstanding Performance Features:
1. Three Perfect Starting Functions:
(1). Manual Start Function: Seamlessly achieve manual-start through a manual-automatic interlock switch, offering reliability and simplicity.
(2). Automatic-Manual Functions: Capable of three starting attempts, it raises a 'starter failure alarm' and exits the starting sequence if unsuccessful. Upon the first successful start, it reaches rated load in 5-10-15S, depending on unit capacity.
(3). Emergency Manual Direct Start: In case of self-control device failure, execute an emergency direct start manually, ensuring uninterrupted operation.
2. Automatic Operation: On receiving a valid fire signal, the diesel fire pump autonomously initiates, ensuring continuity even if the electrical supply system is disrupted. Once the system normalizes, it seamlessly switches back to the electric pump.
3. Automatic Shutdown: The diesel fire-fighting pump intelligently delays and ceases operation automatically once the fire signal subsides, ensuring safety and efficiency.
4. Self-Charging Battery System: The battery system charges automatically via the diesel engine's electrical main power, guaranteeing a consistent, reliable start for the unit.
5. Comprehensive Indicating System: Monitor every parameter with ease - ready status, manual and automatic start, operational state, shutdown status, battery charging, speed variation, oil pressure levels, temperature alerts, fuel status, and more, ensuring thorough oversight and control.
6. Advanced Alarm and Protection Systems: Equipped with alerts for failed starts, overspeed, oil pressure anomalies, temperature irregularities, charging device malfunctions, voltage fluctuations, and fuel levels, providing unparalleled safety and reliability.
7. Enhanced Display Systems: Precisely monitor engine oil pressure, engine speed, battery charge current, and voltage, ensuring transparency and control at all times.
8. Direct-Coupled Design: The diesel engine and water pump are integrated with a high-flexible coupling, offering a compact structure, superior performance, reduced failure rates, minimal vibration, and ease of installation for onsite construction.
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 cater to diverse firefighting requirements.
10. Adjustable Flow and Pressure: Featuring mechanical or electronic speed governors, these diesel pumps allow for precise adjustments to engine speed, aligning pump flow and pressure with actual conditions.
11. Pre-Heating Water Temperature Device: Equipped with an AC220V cooling water preheating device, ensuring optimal performance even in environments with temperatures below 5 ºC.
12. Dual Battery Circuit: In the event of a battery failure, an alternate battery system automatically engages, ensuring continuous operation.
13. Maintenance-Free Battery: Enjoy the convenience of a maintenance-free battery system, eliminating the frequent need for supplemental fluid.
14. Automatic Timing Inspection Test: Our state-of-the-art fire system, typically in standby mode, is engineered to autonomously execute device testing for standby conditions. It will ensure timely alerts, safeguarding your operations with precision.
Note: The aforementioned functions are available for selection based on your specific requirements. We are adept at providing bespoke custom designs to fulfill your unique specifications.
Selection Configuration of Diesel Engine
1. The Pump: Choose from the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the SHD series multistage segment pump, or the versatile ZW horizontal self-priming centrifugal pump, each engineered for optimal performance.
2. The Diesel Engine:
Our selection features internationally renowned brands of diesel engines. Options include single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations, with speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, offering unmatched reliability and efficiency.
3. Other Accessories: Enhance your setup with a comprehensive array of accessories including an advanced filtration system, efficient silencer system, superior cooling system, durable fuel tank, common channel base, base fuel tank, radiator, battery, and charger, ensuring peak operational efficiency.
4. The Control Cabinet: Opt for the SBC, PLC programming, sensor, or our automatic control cabinet, each designed for seamless integration and maximum control.
| 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 |
Discover the power of a globally renowned diesel engine, featuring a dynamic range of single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Operate effortlessly within a versatile speed spectrum of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
Experience the engineering excellence of SEMHAI’s robust professional coupling adaptors, designed to seamlessly connect diesel engines to drive pumps with precision and stability.
Our coupling adaptors effortlessly integrate with standard couplings, enabling a plug-and-play installation that eliminates the need for alignment tools. Crafted from polyamide nylon reinforced with fibreglass, these adaptors are torsionally rigid and maintenance-free, perfect for any hydrostatic drive in construction, harvesting, and forestry machinery.
Introducing the Diesel Plus Fire Pump Controllers by SEMHAI, crafted to manage and monitor 12 or 24-volt diesel fire pump engines. These controllers are at the forefront of technological advancement in diesel engine management.
Key Features
Versatile Universal Supply Voltage ranging from 100Vac to 240Vac
Dual Output Capabilities: 12 or 24 Vdc - Easily selectable via DIP Switch
Advanced Communications with USB Port / Drive
Effortlessly Transfer Data to and from a portable USB Device
Integrated Web Pages for Enhanced Monitoring*
Easily View Current Status, Data Values, Programmed Set Points, and Historical Data
Seamless Ethernet* Direct Connection and Data Transfer with a Computer
RS485 Port for Reliable Communication*
MODBUS Communication Enabled * Note: COM Option must be ordered for functionality
Introducing the innovative New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank.
Our robust engine mounts are expertly crafted to isolate vibrations, reducing noise in both mobile and stationary equipment. Constructed from premium industrial-grade materials, they ensure durability and extended service life, outlasting cheaper counterparts.
Our professional-grade gearboxes are engineered for direct mounting on diesel engines, offering versatility for speed adjustment across various applications. We provide input options including SAE housing and fixed coupling (Rubber Block Drive), as well as switchable BD or BDS clutches.
Industry - Our pumps are integral to boiler feed water systems and cooling systems, ensuring efficient heat exchange and operational safety across industrial applications.
Smelting - Designed for rigorous smelting environments, our pumps facilitate robust water circulation and efficient cooling, crucial for maintaining equipment integrity and operational effectiveness.
Fire-fighting - Our pumps power diverse fire-fighting solutions, including fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, providing reliable protection and swift response in critical situations.
Ocean - Engineered for maritime challenges, our pumps serve wild water supply systems and island freshwater collection systems, delivering reliable water management solutions amid oceanic conditions.
Heating - In heating applications, our pumps ensure consistent and efficient water circulation and cooling, promoting optimal thermal performance and energy conservation.
Municipal - Our pumps are at the forefront of municipal services, offering dependable solutions for emergency drainage and emergency water supply, safeguarding communities with prompt and effective interventions.
Agriculture - With a focus on agricultural needs, our pumps efficiently manage irrigation and drainage systems, enhancing crop productivity and resource management in farming operations.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated robust, long-standing partnerships with some of the most prestigious domestic pump-testing authorities, ensuring top-tier quality and reliability in our offerings. These affiliations include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in the esteemed Tiexi District of 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 renowned Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among others.
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