Efficient Consumption and Easy Maintenance: Experience unrivaled efficiency with our High Efficiency Centrifugal Water Pump, designed for utmost energy saving and simplicity in maintenance. This innovative pump is crafted to deliver superior performance with minimal fuel consumption and requires only the most straightforward maintenance, ensuring minimal downtime and maximum productivity.
SEMHAI Engines proudly presents a diverse range of diesel engines tailored for stationary applications including centrifugal pumps, hydraulic pumps, air compressors, and generators. With power options like ION power ranging from 415 kW to 920 kW, and ICXN power spanning 377 kW to 836 kW, all compliant with ISO 3046-1 standards, these engines are engineered for adaptability and efficiency. Designed to power centrifugal pumps at variable speeds, they adhere to precise propeller curve power consumption requirements. SEMHAI's robust diesel engines are renowned for their dependability and fuel efficiency, optimizing power density for long service intervals and extended lifespan. This makes them the ideal choice for reliable and versatile energy solutions.
Performance Features
1. With Three Types of Impeccable Starting Functions:
(1) Manual Start Function: Seamlessly achieve a manual start with a secure manual-automatic interlock through a simple switch operation;
(2) Automatic-Manual Functions: Benefit from three starting attempts, with a "starter failure alarm" issued and automatic termination of starting if unsuccessful. Enjoy swift transitions to the rated load within 5-10-15 seconds, depending on capacity size, after a successful initial start;
(3) Emergency Manual Direct Start Function: Ensure immediate activation through manual direct start in emergency scenarios when self-controlled devices face malfunctions.
2. Automatic Operation: Our diesel fire pump springs into action upon receiving a valid fire signal, automatically initiating operations if impediments obstruct normal starts due to power system interruptions or failures. Once the power supply normalizes or electric pumps function correctly, seamless transition to electric pump operation is guaranteed.
3. Automatic Shutdown: Experience hassle-free operation as the diesel fire-fighting pump gracefully delays and then shuts down automatically when the fire signal ceases, prioritizing safety and efficiency.
4. Battery Self-Charge Function: The integrated system ensures your battery remains fully charged using the diesel engine's electrical mains power, guaranteeing smooth and reliable start-ups every time.
5. Exceptional Indicating System: Comprehensive indicators include statuses like ready to start, manual start, automatic start, unit operation, shutdown, battery charging, and warnings for speeding, low oil pressures, high water temperatures, low voltage, and low fuel levels - all to ensure peak performance and reliability.
6. Advanced Alarm or Protection System: Safeguard operations with alerts and protections against failed starts, overspeed, low oil pressures, high temperatures, charging faults, low/high battery voltages, and low fuel levels, offering peace of mind and reliable operation.
7. Superior Display Systems: Real-time monitoring of engine oil pressure, engine speed, battery charge current, and voltage ensures you're always informed of your equipment's performance metrics.
8. Direct-Coupled Efficiency: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a shared base channel, delivering a compact, efficient structure with minimal failures, reduced vibration, and simplified on-site installation.
9. High Pressure and Large Flow Capacity: Our selection of IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps cater to diverse fire scenarios, ensuring optimal pressure and flow.
10. Adjustable Flow and Working Pressure: With diesel pumps equipped with mechanical or electronic speed governors, you can effortlessly adjust the speed of the diesel engine to synchronize pump flow and head with actual data, offering unparalleled versatility.
11. Pre-Heating Device for Water Temperature: The unit comes equipped with an AC220V cooling water preheating device, ensuring optimal operation even in temperatures below 5 ºC, making it ideal for challenging environments.
12. Dual Battery Circuit: In the event of a battery failure, an alternate battery automatically engages, ensuring uninterrupted operation and reliability.
13. Maintenance-Free Battery: Our state-of-the-art battery technology eliminates the need for frequent fluid supplementation, offering a maintenance-free solution for your peace of mind.
14. Automatic Timing Inspection Test: In a scenario where the fire system predominantly remains in standby mode, the unit showcases its brilliance by autonomously executing device tests for standby conditions, ensuring operational excellence and providing timely alerts for any discrepancies detected.
Note: The functionalities listed above are adaptable to cater to bespoke requirements. We pride ourselves on offering customized designs tailored to meet the unique specifications and needs of our esteemed clientele.
Selection Configuration of Diesel Engine
1. The Pump: Our selection encompasses a range of high-performance pumps including the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, as well as the ZW horizontal self-priming centrifugal pump, each designed to deliver exceptional efficiency and reliability.
2. The Diesel Engine:
Featuring internationally renowned diesel engine brands, we offer a versatile array of options including single-cylinder, two-cylinder, four-cylinder, and six-cylinder engines. These engines operate within a dynamic speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Our comprehensive suite of accessories includes a robust filtration system, an efficient silencer system, an advanced cooling system, a capacious fuel tank, a common channel base, base fuel tank, radiator, battery, and charger, all meticulously crafted to enhance system performance.
4. The Control Cabinet: Equipped with cutting-edge technology, our control cabinets feature SBC, PLC programming, sophisticated sensors, and an automatic control cabinet designed to provide seamless and intuitive control over system operations.
| 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 |
Internationally renowned diesel engines feature a range of single to six-cylinder options, offering speeds from 1500 to 3000 rpm. These engines are the epitome of power and efficiency, designed to meet diverse global standards.
SEMHAI offers robust and professional coupling adaptors, meticulously engineered to seamlessly connect diesel engines with pumps via a reliable shaft mechanism.
Our coupling adaptors boast a simple plug-in installation with standard couplings, eliminating the need for alignment tools. Crafted from high-quality polyamide nylon, reinforced with fiberglass, they are torsionally rigid and maintenance-free, perfect for hydrostatic drives in construction, harvesters, and forestry machinery.
The Diesel Plus Fire Pump Controllers by SEMHAI set the standard for controlling and monitoring 12 or 24-volt diesel fire pump engines, representing the pinnacle of technical advancement in diesel engine control.
Features: A comprehensive suite of advanced functionalities that elevate our products above the rest.
Universal Supply Voltage from 100Vac to 240Vac: Ensuring unparalleled compatibility with a wide range of power sources.
Dual Output of 12 or 24 Vdc - DIP Switch Selectable: Offering versatile power output settings to tailor to your exact needs.
Communications via USB Port / Drive: Seamlessly connect and communicate with ease.
Effortlessly transfer data to and from a portable USB device, streamlining data management and accessibility.
Embedded Web Pages*: Experience real-time monitoring with intuitive web interfaces.
View the current status, data values, programmed set points, and historical data for comprehensive insights at your fingertips.
Ethernet* Direct Connection / Data Transfer with a Computer: Enables seamless integration and data sharing with computer systems.
RS485 Port*: A robust communication option for enhanced connectivity.
MODBUS Communication * COM Option must be ordered for this function: Leverage advanced communication protocols for optimal operation.
Introducing our New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for durability and high-capacity performance.
Engine mounts engineered to isolate vibrations for marine and industrial applications, significantly reducing noise in both mobile and stationary equipment. These mounts boast premium industrial-grade materials, ensuring long-lasting service life and enhanced equipment durability.
Our professional gearboxes are precision-designed for direct diesel engine mounting. They facilitate speed adjustments in various applications, offering options for SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch, tailored to meet diverse operational needs.
Industry - Our versatile pumps seamlessly integrate into boiler feed water systems and cooling systems, ensuring optimal performance and longevity for industrial applications.
Smelting - Designed for the rigorous demands of smelting facilities, our pumps provide reliable water circulation and cooling for enhanced operational efficiency.
Fire-fighting - Safeguard with confidence using our pumps in fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems for comprehensive fire protection.
Ocean - With robust engineering, our pumps efficiently support wild water supply systems and island freshwater collection systems to meet diverse oceanic needs.
Heating - Experience consistent heating solutions with our pumps, expertly crafted for water circulation and cooling system applications.
Municipal - Our pumps are essential for municipal applications, providing dependable solutions for emergency drainage and water supply systems during critical situations.
Agriculture - Our pumps are specifically optimized for agricultural use, facilitating efficient irrigation and drainage to promote thriving agricultural environments.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated esteemed and enduring partnerships with numerous premier domestic pump-testing institutions. Our prestigious collaborations include:
The distinguished National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City.
The acclaimed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City.
The reputable Ministry of Agriculture, Water Pump Quality Supervision and Testing Center based in Chongqing City.
The illustrious Shanghai Mechanical and Electrical Products Quality Inspection Center situated in Shanghai City, among others.
Audited Supplier 
){kind=link}