Efficient consumption and easy maintenance:
SEMHAI Engines presents an exceptional array of diesel engines tailored for stationary applications, including centrifugal and hydraulic pumps, as well as air compressors and generators. Our engines boast a versatile power range from 415 kW to 920 kW for ION power and 377 kW to 836 kW for ICXN power, all conforming to ISO 3046-1 standards. Approved for variable speed centrifugal pump operation, these engines optimize power consumption according to the propeller curve. Renowned for their robust and fuel-efficient performance, SEMHAI diesel engines promise unrivaled reliability and longevity, featuring extended overhaul intervals and service life. This unparalleled power density transforms our engines into exceptionally efficient and adaptable energy sources.
Performance features
1. Equipped with three superior starting functions:
(1). Manual start function: Achieve manual start seamlessly through a manual-automatic interlock switch;
(2). Automatic-manual functions: Offering three attempts to start, it triggers a 'starter failure alarm' and exits the starting process if unsuccessful after three tries; takes 5-10-15 seconds to reach rated load depending on unit capacity upon first successful start;
(3). Emergency manual direct start function: Direct manual start is possible for emergencies when self-controlled devices fail.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump autonomously activates if normal start fails due to power system issues. When power systems stabilize, or electric pumps function properly, it seamlessly transitions to electric pump operation.
3. Automatic shutdown: The diesel fire-fighting pump intelligently delays and autonomously shuts down when the fire signal ceases.
4. Self-charging battery function: The battery automatically recharges via the diesel engine's electrical mains power, ensuring a reliable start for the unit.
5. Comprehensive indicating system: Signals readiness to start, manual and automatic start, unit operation and 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, and low fuel level. Facilitates routine inspections.
6. Robust alarm and protection system: Protects and alerts against failure to start thrice, overspeed, low lubricant oil pressure, high cooling water temperature, low lubricating oil temperature, automatic charging device failure, low battery voltage, high battery voltage, and low fuel level.
7. Advanced display systems: Provides real-time metrics such as engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-coupled design: Engine and water pump connected via high-flexible coupling on a shared base, offering a compact structure, superior performance, reduced failure and vibration, and ease of on-site installation.
9. High pressure and substantial flow capacity: Features IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps to suit various fire scenarios.
10. Adjustable flow and working pressure: Fitted with mechanical or electronic speed governors, these diesel pumps adapt by altering engine speed to match actual flow and head data.
11. Pre-heating water temperature device: Includes an AC220V cooling water preheating device to maintain optimal operation even at temperatures below 5 ºC.
12. Double battery circuit: Automatic engagement of a backup battery in case of primary battery failure, ensuring continuous operation.
13. Maintenance-free battery: Eliminates the need for frequent supplemental fluid, simplifying maintenance.
14. Automatic Timing Inspection Test: In the realm of fire control, our systems typically stand vigilant in standby mode. Our state-of-the-art unit autonomously executes device evaluations to ensure readiness, providing timely alerts to maintain an optimal standby condition.
Note: Tailor your fire control experience with our array of customizable features, designed to meet your unique requirements. Whether you desire specific functionalities or a bespoke design, we cater to your precise needs.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our diverse range, including the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump, each crafted for superior performance.
2. The Diesel Engine:
Our diesel engines are sourced from internationally acclaimed brands, available with configurations ranging from single-cylinder to six-cylinder. With speed options at 1500r/min, 1800r/min, 2400r/min, and 3000r/min, they are engineered to meet various demands efficiently.
3. Other Accessories: Enhance your system with premium components such as a filtration system, silencer system, and cooling system. Also included are a fuel tank, common channel base, base fuel tank, radiator, battery, and charger to ensure comprehensive functionality.
4. The Control Cabinet: Featuring advanced SBC, PLC programming, and sensors, our automatic control cabinet ensures precise and reliable operation, providing you with peace of mind and seamless control over your system.
| 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 |
Our product features an internationally acclaimed diesel engine, offering versatility with single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations. Enjoy seamless operations across a dynamic speed spectrum: 1500 r/min, 1800 r/min, 2400 r/min, and 3000 r/min.
SEMHAI presents highly durable professional coupling adaptors, engineered for precision in connecting diesel engines to pump shafts, ensuring optimal performance.
Our coupling adaptors are designed for effortless installation with a standard coupling, eliminating the need for alignment tools. Constructed from polyamide nylon reinforced with fibreglass, they are torsionally rigid and maintenance-free, ideal for any hydrostatic drive in construction, harvesting, and forestry machinery.
Experience cutting-edge control with SEMHAI's Diesel Plus Fire Pump Controllers, crafted to manage and monitor 12 or 24 volt diesel fire pump engines. These controllers represent the pinnacle of technological sophistication.
Outstanding Features
Versatile Universal Supply Voltage ranging from 100Vac to 240Vac.
Flexible Dual Output of 12 or 24 Vdc, easily selectable through a DIP Switch.
Convenient Communications via USB Port/Drive.
Effortlessly Transfer Data to and from any portable USB Device.
State-of-the-art Embedded Web Pages* for enhanced functionality.
Access real-time Current Status, Data Values, Programmed Set Points, and Historical Data with ease.
Direct Ethernet* Connection for seamless Data Transfer with a Computer.
Advanced RS485 Port* for enhanced connectivity.
Efficient MODBUS Communication with the COM Option must be ordered to activate this function.
Introducing the innovative New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; designed for superior performance.
Our durable engine mounts are engineered to isolate vibrations, minimizing noise in both mobile and stationary equipment. Constructed from high-quality industrial-grade materials, they significantly extend the service life of your machinery compared to standard mounts.
Our professional gearboxes are expertly designed for seamless direct mounting on diesel engines. These gearboxes provide flexibility in speed adjustments, whether accelerating or reducing speed in numerous applications, featuring an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side.
Industry - An essential component for the boiler feed water system and cooling system, ensuring optimal efficiency and performance.
Smelting - Pivotal in driving the water circulation and cooling systems, offering unparalleled reliability in harsh environments.
Fire-fighting - Integral to the effectiveness of fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, providing robust protection and safety.
Ocean - A key player in the wild water supply system and island freshwater collection system, offering sustainable and reliable water management solutions.
Heating - Crucial for the seamless operation of water circulation and cooling systems, enhancing energy efficiency and system longevity.
Municipal - Designed for rapid response in emergency drainage and emergency water supply, safeguarding public infrastructure and communities.
Agriculture - Vital for effective irrigation and drainage systems, boosting productivity and resource management in agricultural operations.
Professional Cooperation Agencies: Our strategic partnerships with renowned testing agencies set us apart. These collaborations ensure our products meet the highest standards of quality and reliability.
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with premier domestic pump-testing institutions. Our commitment to quality and innovation is backed by these collaborations, ensuring our products consistently outperform expectations:
- National Quality Supervision and Inspection Center of Industrial Pumps (Tiexi District, Shengyang city): A leading authority in pump testing, ensuring top-tier performance and safety standards.
- Irrigation Machinery Products Quality Inspection Center of Machinery Industrial (Zhenjiang City): Ensuring our pumps excel in irrigation proficiency and reliability.
- Ministry of Agriculture, Water Pump Quality Supervision and Testing Center (Chongqing city): Guaranteeing the highest agricultural standards for water pump functionality and durability.
- Shanghai Mechanical and Electrical Products Quality Inspection Center (Shanghai city): Collaborating to uphold the pinnacle of mechanical and electrical product excellence.
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