Efficient consumption and easy maintenance:
SEMHAI Engines proudly presents an extensive lineup of diesel engines, tailored for stationary applications like centrifugal and hydraulic pumps, as well as air compressors and generators. These engines boast remarkable versatility, available within powerful ranges such as ION power from 415 kW to 920 kW, or ICXN power from 377 kW to 836 kW, conforming to ISO 3046-1 standards. Designed to drive centrifugal pumps seamlessly at variable speeds, these engines optimize power consumption aligned with the propeller curve. Renowned for their robustness, SEMHAI diesel engines deliver dependable and fuel-efficient performance, ensuring longevity with extended overhaul intervals. The enhanced power density transforms our engines into adaptable and efficient energy powerhouses.
Performance features
1. Offering three impeccable starting functions:
(1). Manual Start Function: Achieve manual-start through an intuitive manual-automatic switch interlock;
(2). Automatic-Manual Functions: Enjoy the flexibility of three starting attempts, coupled with a "starter failure alarm" that activates and exits if starting is unsuccessful three times. The time to attain rated load post-initial success ranges between 5-10-15 seconds, based on unit capacity.
(3). Emergency Manual Direct Start Function: Facilitates direct manual initiation during self-controlled device failures.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump embarks on automatic operation, stepping in effortlessly if the fire pump motor's power supply is interrupted or fails. As normalcy resumes in the power supply, or if the electric pump regains functionality, it seamlessly transitions back to the electric pump.
3. Automatic shutdown: The diesel fire-fighting pump intelligently delays and then shuts off automatically once the fire signal ceases, ensuring safety and precision.
4. The battery self-charge function: Harnesses electric mains power from the diesel engine to autonomously charge the battery, ensuring a consistently smooth start-up.
5. Perfect indicating system: Comprehensive indicators include start readiness, manual and automatic start, unit operation and shutdown, battery charging, speed control, lubrication oil pressures, cooling system temperatures, battery voltage levels, fuel levels, and regular maintenance alerts.
6. Perfect alarm or protection system: Safeguards include alarms for three-time starting failures, overspeeding, low lubricant oil pressures, high cooling water temperatures, failed automatic charging, and fuel level warnings.
7. Perfect display systems: Comprehensive real-time displays for engine oil pressure, engine speed, battery current, and charging voltage provide vital operational insights.
8. Direct-coupled: The diesel engine and water pump are synergistically connected via a high-flexibility coupling on a common channel base, offering a compact structure, superior performance, minimized failures and vibrations, and simplified installation on-site.
9. High pressure and big flow capacity: By selecting IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series multistage pumps, we cater to diverse fire-fighting scenarios with unparalleled efficiency.
10. Adjustable flow and working pressure: Diesel pumps, featuring mechanical or electronic speed governors, allow for seamless adjustments in diesel engine speed to synchronize pump flow and head with actual data.
11. Pre-heating device for water temperature: Equipped with an AC220V cooling water preheating device, the unit ensures optimal functionality even in temperatures below 5 ºC.
12. Double battery circuit: Ensures operational reliability by automatically switching to a backup battery in the event of a primary battery failure.
13. Maintenance-free battery: Enjoy hassle-free operation with a battery that requires no frequent addition of supplemental fluids.
14. Automatic timing inspection test: In the realm of fire protection, where every moment counts, the system typically stands vigilant, ever-ready in standby mode. Our unit is engineered to perform automated testing, ensuring a seamless transition from standby to operational status, while providing timely alerts to maintain the highest standard of readiness.
Note: The aforementioned features are meticulously designed to be tailored to meet the diverse needs of our users. We offer the flexibility of selecting specific functionalities, and our expert team is on hand to craft bespoke designs that cater to unique and specific requirements, ensuring that our solutions perfectly align with your individual needs.
Selection configuration of diesel engine
1. The pump: Our product line boasts an array of sophisticated pumps, including the renowned IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the advanced SHD series multistage segment pump, and the versatile ZW horizontal self-priming centrifugal pump, each designed to deliver unparalleled performance.
2. The diesel engine:
We proudly feature an array of internationally acclaimed diesel engines. These include models with single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations, promising a seamless combination of power and efficiency. Our engines operate across a dynamic speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, offering flexible solutions for diverse operational needs.
3. Other accessories: Complementing our powerhouse engines and pumps is a suite of premium accessories. These include a high-efficiency filtration system, a state-of-the-art silencer system, an advanced cooling system, a sturdy fuel tank, a robust common channel base, a convenient base fuel tank, a high-performance radiator, a durable battery, and a reliable charger, each component carefully selected to enhance overall system performance.
4. The control cabinet: Our control solutions include the sophisticated SBC and PLC programming systems, cutting-edge sensors, and an automatic control cabinet designed to provide unmatched precision and control, ensuring that every operation is executed with the utmost 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 |
Our product features an internationally renowned brand of diesel engines, available in configurations of single-cylinder, two-cylinder, four-cylinder, and six-cylinder. These engines cater to various speed ranges: 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring versatility and power.
Experience the unmatched reliability of SEMHAI's robust professional coupling adaptors, expertly engineered to seamlessly connect diesel engines with pumps through a precision-driven shaft.
These coupling adaptors are designed for ease of use, connecting to a standard coupling with a straightforward plug-in installation. No alignment tools are necessary, thanks to their torsionally rigid construction from polyamide nylon reinforced with fiberglass. Perfect for any hydrostatic drive in construction, harvesting, and forestry machinery.
Introducing SEMHAI's Diesel Plus Fire Pump Controllers, crafted to expertly control and monitor diesel fire pump engines operating on 12 or 24 volts. These controllers stand as some of the most technologically advanced solutions available.
Features
Universal Supply Voltage: 100Vac to 240Vac, accommodating diverse power requirements with ease.
Dual Output Option: 12 or 24 Vdc, selectable via DIP switch for tailored performance.
Seamless Communications through USB Port / Drive for enhanced connectivity.
Effortlessly Transfer Data to/from portable USB Devices, enhancing user convenience and data management.
Embedded Web Pages* offer intuitive access to system status, data metrics, programmed points, and history.
Instantly View Current Status, Data Values, Programmed Set Points, and Historical Data through an intuitive interface.
Ethernet* Direct Connection facilitates seamless data transfer and connectivity with computers.
RS485 Port* for robust connection options, enhancing system integration.
MODBUS Communication * Note: COM Option must be ordered to enable this powerful function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, engineered for superior capacity and reliability.
Our engine mounts are crafted to robustly isolate vibrations, ideal for marine and industrial applications. These mounts significantly reduce noise in both mobile and stationary equipment. Made from premium industrial-grade materials, they ensure long service life and extend equipment longevity.
Our professional gearboxes are engineered for direct mounting on diesel engines. They adeptly adjust speed, either accelerating or reducing it, across various applications. The input side accommodates an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for enhanced versatility.
Industry - Perfectly engineered for boiler feed water systems and cooling systems, providing seamless integration and unmatched efficiency.
Smelting - Essential for maintaining optimal conditions in water circulation and cooling systems, ensuring uninterrupted operations and enhanced performance.
Fire-fighting - Reliable and robust solutions for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, guaranteeing safety and preparedness.
Ocean - Innovative wild water supply systems and island freshwater collection systems, designed to provide unwavering support and sustainability.
Heating - Designed for excellence in water circulation and cooling systems, delivering consistent performance and energy efficiency.
Municipal - Tailored for emergency drainage and water supply solutions, offering rapid response and dependable service for critical situations.
Agriculture - Advanced irrigation and drainage systems, engineered to optimize resource use and increase agricultural productivity.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. is proud to have forged enduring and robust partnerships with an array of esteemed domestic pump-testing institutions, ensuring unparalleled quality and performance for our products. Our collaborative network includes:
The distinguished National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City, a beacon of excellence in quality control and assurance.
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, known for its rigorous standards and precision testing.
The highly regarded Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, renowned for its meticulous evaluation and oversight.
The prestigious Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, a paragon of quality verification and testing expertise. We proudly collaborate with these and other leading institutions to uphold the highest standards of excellence and reliability.
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