Efficient Consumption and Easy Maintenance:
Discover the versatility and strength of SEMHAI Engines, offering an impressive range of diesel engines crafted for various stationary applications such as centrifugal and hydraulic pumps, air compressors, and generators. Available in diverse power ranges, from ION power spanning 415 kW to 920 kW to ICXN power between 377 kW and 836 kW, these engines adhere to ISO 3046-1 standards. SEMHAI diesel engines, celebrated for their robust construction, ensure reliable, fuel-efficient performance, making them ideal for driving centrifugal pumps with variable speeds. Their optimized power density not only ensures long overhaul intervals and extended service life but also transforms these engines into efficient and adaptable energy suppliers.
Performance Features: Unleash Unmatched Efficiency
1. Triple Starting Functions for Seamless Performance:
(1). Manual Start Function: Achieve manual-start through a convenient manual-automatic interlock switch, offering straightforward operation.
(2). Automatic-Manual Functions: Experience the ease of three starting attempts with an innovative 'starter failure alarm' that exits the starting state if unsuccessful, transitioning to rated load within 5-10-15 seconds depending on unit capacity after a successful initiation.
(3). Emergency Manual Direct Start Function: Equip yourself with a manual direct start capability for emergencies when self-controlled devices encounter failures.
2. Automatic Operation Excellence: Upon receiving a valid fire signal, the diesel fire pump seamlessly initiates operation when the electric system encounters interruptions, automatically switching to the electric pump once the power system stabilizes.
3. Automatic Shutdown Precision: The diesel fire-fighting pump intelligently delays and shuts down once the fire signal ceases, ensuring optimal safety and reliability.
4. Robust Battery Self-Charge Function: Ensure uninterrupted operation with an automatic battery charging system powered by the diesel engine's electrical mains.
5. Comprehensive Indicating System: Features include ready status, start modes, battery charging levels, and critical alerts such as low lubrication oil pressure, high coolant temperature, and battery voltage, providing a thorough operational overview.
6. Advanced Alarm and Protection System: Protect your operations with alerts for failed starts, overspeed conditions, lubricant pressure levels, cooling water temperature, and battery voltage discrepancies.
7. Comprehensive Display Systems: Monitor essential parameters including engine oil pressure, speed, battery charge current, and voltage for detailed performance insights.
8. Direct-Coupled Excellence: Enjoy the superior efficiency of a high-flexible coupling connecting the diesel engine and water pump on a shared base, reducing failure and vibration, and facilitating smooth on-site installation.
9. High-Pressure, Big Flow Capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction pumps, or SHD series segmental multistage pumps to meet diverse fire safety requirements.
10. Adjustable Flow and Pressure: Harness the power of diesel pumps equipped with mechanical or electronic speed governors to precisely adjust engine speed, aligning pump flow and head with actual data.
11. Pre-Heating Device for Optimal Performance: The unit features an AC220V cooling water preheating system, ensuring seamless operation in temperatures below 5 ºC.
12. Dual Battery Circuit for Reliability: If one battery group fails, the alternate group automatically activates, guaranteeing continuous functionality.
13. Maintenance-Free Battery: Experience the convenience of a battery that eliminates the need for frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: The fire system, typically in standby mode, ensures optimal safety by automatically performing comprehensive device tests under standby conditions, providing timely alerts and warnings to maintain peak performance.
Note: The aforementioned features are customizable to meet user-specific requirements. We offer bespoke design solutions tailored to exact specifications, ensuring your needs are expertly addressed.
Selection Configuration of Diesel Engine
1. The Pump: Choose from an array of high-performance pumps including the IS series single-stage single-suction pump, SOW series single-stage double-suction pump, SHD series multistage segment pump, and ZW horizontal self-priming centrifugal pump, each engineered for efficiency and reliability.
2. The Diesel Engine:
Equipped with internationally renowned diesel engines, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. Speed ranges include 1500r/min, 1800r/min, 2400r/min, and 3000r/min, offering versatility and power to meet diverse operational demands.
3. Other Accessories: Comprehensive support systems including a filtration system, silencer system, cooling system, fuel tank, common channel base, base fuel tank, radiator, battery, and charger, are all available to ensure seamless functionality and enduring performance.
4. The Control Cabinet: Cutting-edge technology featuring SBC, PLC programming, sensors, and an automatic control cabinet, providing sophisticated control and monitoring capabilities for enhanced efficiency and reliability.
| 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 |
Harness the Power of International Excellence with our renowned diesel engine. Featuring configurations from single to six-cylinder options and speed versatility ranging from 1500r/min to an exhilarating 3000r/min, it's engineered for unmatched performance.
Experience the precision of SEMHAI's robust professional coupling adaptors, expertly crafted to seamlessly connect diesel engines to drive pumps with optimized shaft alignment.
Our innovative coupling adaptors offer straightforward plug-in installation, eliminating the need for alignment tools. Constructed from polyamide nylon reinforced with fibreglass, they promise torsional rigidity and are maintenance-free. Ideal for any hydrostatic drive applications, including construction machines, harvesters, and forestry machinery.
Introducing the Diesel Plus Fire Pump Controllers by SEMHAI, the pinnacle of diesel engine control technology. Designed for both 12 and 24-volt diesel fire pump engines, these controllers are unrivaled in their technical advancement.
Exceptional Features
Universal Supply Voltage Range from 100Vac to 240Vac, catering to a wide array of power needs.
Dual Output Versatility with 12 or 24 Vdc, easily adjustable via a DIP Switch.
Advanced Communications USB Port / Drive for seamless connectivity.
Effortlessly Transfer Data to and from portable USB Devices, ensuring smooth information flow.
Embedded Web Pages* for superior user interaction and control.
Instantly View Current Status, Data Values, Programmed Set Points, and Historical Data with ease.
Ethernet* Direct Connection for seamless data transfer with a Computer.
RS485 Port* for robust connectivity.
Utilize MODBUS Communication * (Note: COM Option must be ordered to activate this function) for enhanced control.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; engineered for excellence.
Harness robust isolation to dampen vibrations in marine and industrial engine mounts, significantly reducing noise in both mobile and stationary equipment. Crafted with superior industrial-grade materials, these mounts offer longevity, enhancing equipment lifespan.
Our professional gearboxes are meticulously designed for direct diesel engine mounting, offering speed modification solutions across various applications. Equipped with an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD/BDS clutch on the input side for versatile performance.
Industry - Our versatile pump is a vital component for boiler feed water systems and essential for cooling systems, ensuring optimal performance and reliability.
Smelting - Designed to excel in demanding environments, our pump supports water circulation and cooling systems, enhancing efficiency and safety.
Fire-fighting - Robust and reliable, our pump powers fire hydrant systems, sprinkler frameworks, and sophisticated spray cooling systems, as well as foam and water monitor systems to meet all fire safety needs.
Ocean - Perfectly suited for wild water supply systems and island freshwater collection, our pump delivers unmatched performance and dependability in marine environments.
Heating - Engineered for excellence, our pump facilitates water circulation and cooling in heating systems, optimizing energy efficiency and system reliability.
Municipal - Our emergency drainage and water supply solutions are at the forefront of municipal services, ensuring preparedness and resilience in critical situations.
Agriculture - With a focus on reliability, our irrigation and drainage systems provide consistent water management solutions essential for agricultural success.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. takes great pride in its robust and enduring partnerships with premier domestic pump-testing authorities. Our strategic alliances are a testament to our commitment to excellence, ensuring the highest quality standards for our range of products.
We collaborate with the esteemed National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City, guaranteeing meticulous evaluation and performance checks.
Our alliance with the Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City fortifies our dedication to superior quality assurance and innovation in irrigation technologies.
In collaboration with the Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, we ensure our products consistently meet and exceed industry standards for reliability and efficiency.
Additionally, our cooperation with the Shanghai Mechanical and Electrical Products Quality Inspection Center reinforces our pledge to provide top-notch mechanical and electrical solutions. Together, these partnerships empower us to deliver unparalleled excellence in every product we offer.
Audited Supplier 
){kind=link}