Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents a diverse array of high-performance diesel engines, meticulously designed for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. These powerful engines are available in a wide range of power outputs, from ION power spanning 415 kW to 920 kW, or ICXN power ranging from 377 kW to 836 kW, all aligning with ISO 3046-1 standards. Distinguished by their ability to drive centrifugal pumps with variable speeds, these engines optimize power consumption according to precise propeller curves. SEMHAI's robust diesel engines deliver unmatched reliability and fuel-efficiency, characterized by prolonged service intervals and a remarkably extended service lifespan. Thanks to this optimized power density, SEMHAI diesel engines emerge as flexible and efficient energy solutions, expertly catering to diverse operational demands.
Performance features
1. Equipped with 3 types of impeccable starting functions:
(1). Manual start function: Achieve manual starting effortlessly through a manual-automatic interlock mechanism via a switch.
(2). Automatic-manual functions: Provides three attempts for starting. In the event of three consecutive failed starts, a 'starter failure alarm' is triggered, exiting the starting state automatically. The transition to rated load occurs in 5-10-15 seconds, contingent on unit capacity, following a successful initial start.
(3). Emergency manual direct start function: In cases of self-controlled device failure, seamlessly initiate an emergency manual direct start function.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump initiates automatically. If the electric pump faces power supply disruptions or failures, the diesel pump seamlessly takes over. Once power supply systems normalize, automatic switching to the electric pump occurs, ensuring uninterrupted operation.
3. Automatic shutdown: The diesel fire-fighting pump ingeniously delays and executes an automatic shutdown once the fire signal ceases, enhancing operational safety.
4. Self-charging battery function: Ensures the battery remains charged via the diesel engine's electrical mains power, guaranteeing a smooth and reliable unit start-up.
5. Comprehensive indicating system: Features indicators for readiness, manual start, automatic start, operational status, shutdown, battery charging, speed adjustments, lubrication oil pressure, turbocharger oil pressure, oil temperature, cooling system water temperature, battery voltage, fuel level, and routine inspections.
6. Comprehensive alarm and protection system: Incorporates alarms and protections for failed starting attempts, overspeed conditions, low lubrication oil pressure, turbocharger oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failures, battery voltage irregularities, and low fuel levels.
7. Advanced display systems: Provides real-time readings of engine oil pressure, engine speed, battery charge current, and battery charging voltage, ensuring constant monitoring and precision.
8. Direct-coupled design: The diesel engine seamlessly connects to the water pump through a high-flexible coupling on a common channel base, resulting in a compact, highly efficient structure with superior overall performance, reduced failure and vibration, and ease of on-site installation.
9. High-pressure, high-flow capacity: Features a selection of IS series single-stage single-suction, SOW series single-stage double-suction pumps, and SHD series segmental multistage pumps, catering to diverse firefighting scenarios with exceptional efficacy.
10. Adjustable flow and pressure: Equipped with either a mechanical or electronic speed governor, the diesel pump can seamlessly adjust engine speed to harmonize pump flow and pressure with real-time data, meeting dynamic operational needs.
11. Water temperature pre-heating device: Outfitted with an AC220V cooling water preheating system, this feature ensures optimal performance even in environments with temperatures as low as 5 ºC.
12. Dual battery circuit: In the event of one battery group's failure, the system automatically engages the secondary battery, ensuring uninterrupted operation.
13. Maintenance-free battery: Eliminates the need for frequent supplemental fluid additions, offering hassle-free performance.
14. Automatic Timing Inspection Test: In the realm of fire safety, the system often remains in standby mode. Our cutting-edge unit autonomously executes device testing ensuring optimal standby conditions, coupled with timely alerts to safeguard functionality.
Note: Each function is meticulously selectable to align with user-specific requirements. Additionally, we offer bespoke design solutions tailored to meet unique and precise needs, ensuring maximum satisfaction.
Selection Configuration of Diesel Engine
1. The Pump: Our premium range includes the IS series single-stage single-suction pump for streamlined operations, the SOW series single-stage double-suction pump for enhanced capacity, the SHD series multistage segment pump for extended durability, and the ZW horizontal self-priming centrifugal pump for superior efficiency.
2. The Diesel Engine:
Renowned international brands offer a diverse selection of diesel engines, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Experience peak performance with speed options ranging from 1500r/min, 1800r/min, 2400r/min, to 3000r/min.
3. Other Accessories: Enhance your system with our comprehensive range of accessories, including a state-of-the-art filtration system, a robust silencer system, efficient cooling system, and durable fuel tank. Also featuring a common channel base, base fuel tank, radiator, high-performance battery, and charger.
4. The Control Cabinet: Equipped with SBC and PLC programming, our control cabinets are designed with advanced sensors and automatic control capabilities to ensure seamless operation and superior performance.
| 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 |
Boasting an array of internationally acclaimed diesel engines, our selection includes single, double, quadruple, and six-cylinder options. Experience unparalleled speed capabilities ranging from 1500r/min to a remarkable 3000r/min.
Crafted with precision, SEMHAI's robust professional coupling adaptors seamlessly connect diesel engines to power pumps via a sturdy shaft.
Our coupling adaptors provide a straightforward plug-in installation with no need for alignment tools, connecting effortlessly to standard couplings. Constructed from polyamide nylon fortified with fiberglass, these adaptors are torsionally rigid and completely maintenance-free, ideal for any hydrostatic drive in construction, harvesting, and forestry machinery.
Introducing the Diesel Plus Fire Pump Controllers by SEMHAI, engineered to expertly control and monitor 12 or 24-volt diesel fire pump engines. These controllers stand as some of the most advanced in diesel engine technology.
Outstanding Features
Universal Supply Voltage, adaptable from 100Vac to 240Vac
Dual Output Options of 12 or 24 Vdc, easily selectable via DIP Switch
Advanced Communications via USB Port / Drive
Effortlessly Transfer Data to and from a portable USB Device
Featuring Embedded Web Pages*
Conveniently View Current Status, Data Values, Programmed Set Points, and Historical Data
Ethernet* Direct Connection for seamless Data Transfer with a Computer
Equipped with an RS485 Port*
MODBUS Communication capabilities * Requires COM Option to be ordered for activation
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank;
Our robust engine mounts are expertly crafted to isolate vibrations, significantly reducing noise for marine and industrial applications. Made from premium industrial-grade materials, these mounts ensure longevity and enhance the lifespan of your equipment compared to lesser alternatives.
Our professional gearboxes, designed for direct diesel engine mounting, offer speed variation through acceleration or reduction. They feature an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side, suiting a diverse range of applications.
Industry - Perfectly designed for boiler feed water systems and cooling systems, our product ensures efficient and reliable performance in industrial settings.
Smelting - Engineered for seamless integration into water circulation and cooling systems, aiding in optimized operations and enhanced productivity in smelting processes.
Fire-fighting - Essential for fire safety, our pump supports fire hydrant systems, sprinkler systems, spray cooling, foam systems, and water monitor systems, ensuring quick and effective response.
Ocean - Ideal for wild water supply and island freshwater collection systems, providing consistent and dependable water management solutions for oceanic and coastal environments.
Heating - Tailored for excellence in water circulation and cooling systems, our pump supports efficient heating operations, ensuring maximum energy efficiency and reliability.
Municipal - Designed for municipal needs, offering robust solutions for emergency drainage and water supply, guaranteeing safety and preparedness in critical situations.
Agriculture - Perfect for irrigation and drainage systems, our pump enhances agricultural productivity by delivering reliable water management and conservation solutions.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has established strong and enduring partnerships with a host of premier domestic pump-testing authorities. These strategic alliances ensure the highest standards of quality and reliability for our products. Our esteemed partners include:
- The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City. We work closely to maintain stringent quality control measures.
- The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City. Our collaboration supports rigorous testing and certification processes.
- The Ministry of Agriculture, Water Pump Quality Supervision and Testing Center based in Chongqing City. Together, we ensure our products meet the highest agricultural standards.
- The Shanghai Mechanical and Electrical Products Quality Inspection Center, right here in Shanghai City. This partnership enhances our local quality assurance capabilities and bolsters our commitment to excellence.
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