Efficient consumption and easy maintenance:
SEMHAI Engines offers an exceptional and comprehensive portfolio of diesel engines, specifically designed for an array of stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. These engines are available in a diverse range of power options, including ION power ranging from 415 kW to 920 kW and ICXN power ranging from 377 kW to 836 kW, all adhering to the rigorous standards of ISO 3046-1. Our engines are meticulously approved for driving centrifugal pumps at variable speeds, ensuring that power consumption aligns perfectly with the propeller curve. The robust and reliable SEMHAI diesel engines are renowned for their fuel-efficient operations, which promote exceptional efficiency, extended overhaul intervals, and long-lasting service life. This optimized power density transforms our diesel engines into efficient and adaptable energy providers.
Performance features
1. Equipped with 3 types of impeccable starting-functions:
(1). Manual start function: Seamlessly achieve the manual-start function through manual-automatic interlock using a switch;
(2). Automatic-manual functions: This feature allows for 3 starting attempts, alerts with a 'starter failure alarm' if unsuccessful, and automatically exits the starting state after 3 failed attempts. For a successful initial start, the transition to rated load occurs within 5-10-15 seconds, depending on unit capacity.
(3). Emergency manual direct start function: An emergency manual direct start is achievable when the self-controlled device fails.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump autonomously initiates operation if the pump fails to start normally due to power supply interruptions or failures in the fire pump motor. Once the power supply is restored or electric pumps are operational, the system automatically switches to the electric pump.
3. Automatic shutdown: The diesel fire-fighting pump automatically delays and shuts down when the fire signal ceases.
4. Battery self-charge function: The battery is capable of automatic charging through the electrical mains power of the diesel engine, ensuring a smooth and reliable unit start.
5. Comprehensive indicating system: This sophisticated system provides clear indications for readiness to start, manual start, automatic start, unit operation, unit 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, low fuel level, and regular inspections.
6. Robust alarm and protection system: This system includes alarms or protective measures for 3 failed start attempts, overspeed, low lubricant oil pressure, low turbocharger 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: Displays crucial data such as engine oil pressure, engine speed, battery charge current, and battery charging voltage.
8. Direct-coupled design: The diesel engine and water pump are seamlessly connected via a high-flexible coupling on a common channel base, offering a compact structure, enhanced overall performance, minimal failure and vibration, and convenient on-site installation.
9. Exceptional high pressure and large flow capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps to cater to diverse fire scenarios.
10. Adjustable flow and working pressure: Diesel pumps fitted with mechanical or electronic speed governors allow for speed adjustments of the diesel engine, ensuring pump flow and head align with actual operational data.
11. Pre-heating device for water temperature: The unit is outfitted with an AC220V cooling water preheating device, ensuring optimal working conditions even at temperatures below 5 ºC.
12. Dual battery circuit: If one battery group fails, the other automatically engages for uninterrupted operation.
13. Maintenance-free battery: Eliminate the need for frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: In the world of fire protection systems, being prepared is key! Often standing by, our system takes charge by autonomously executing comprehensive device tests for standby conditions. It ensures safety by providing timely warnings, guaranteeing your peace of mind.
Note: Tailor the system to your exact specifications with our customizable options! These features are fully adaptable to meet your unique requirements. We excel at bespoke designs tailored precisely to your specific needs.
Selection Configuration of Diesel Engine
1. The Pump: Choose excellence with our range of pump options! Whether it's the IS series single-stage single-suction pump or the SOW series single-stage double-suction pump, the SHD series multistage segment pump, or the ZW horizontal self-priming centrifugal pump, each is engineered for top performance.
2. The Diesel Engine:
Internationally acclaimed, our diesel engines feature single-cylinder, two-cylinder, four-cylinder, and six-cylinder configurations. They operate at varied speeds of 1500r/min, 1800r/min, 2400r/min, up to a robust 3000r/min, promising exceptional efficiency and reliability.
3. Other Accessories: Elevate your system with our high-quality accessories. Featuring a state-of-the-art filtration system, advanced silencer, efficient cooling system, durable fuel tank, common channel base, integrated base fuel tank, powerful radiator, reliable battery, and charger, each component is crafted for excellence.
4. The Control Cabinet: Equipped with cutting-edge SBC, PLC programming, sensor technology, and an automatic control cabinet, our control solutions ensure seamless, intelligent management, and unrivaled operational effectiveness.
| 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 |
Featuring an internationally renowned brand, our diesel engines come in a variety of configurations—single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. Operate within a versatile speed range of 1500r/min, 1800r/min, 2400r/min, and 3000r/min to suit your high-pressure applications.
SEMHAI's robust, professional-grade coupling adaptors flawlessly connect diesel engines to drive pumps via a precision-engineered shaft, ensuring enduring performance.
Our coupling adaptors seamlessly integrate with a standard coupling, allowing for an effortless plug-in installation that requires no aligning tools. Constructed from polyamide nylon reinforced with fibreglass, they are torsionally rigid and maintenance-free. Ideal for any hydrostatic drive in construction machinery, harvesters, and forest machinery.
The Diesel Plus Fire Pump Controllers from SEMHAI are at the forefront of innovation, specifically engineered to manage and monitor 12 or 24-volt diesel fire pump engines. Experience the pinnacle of technical advancement in diesel engine control.
Features
Universal Supply Voltage from 100Vac to 240Vac ensures compatibility and flexibility.
Select between Dual Output options of 12 or 24 Vdc with ease using our intuitive DIP Switch.
Seamless Communications via USB Port / Drive for efficient data management.
Effortlessly transfer data to and from portable USB devices for convenient access on the go.
Embedded Web Pages* offer a seamless user experience.
Instantly view current status, data values, programmed set points, and history for comprehensive monitoring.
Direct Ethernet* Connection facilitates seamless data transfer with computers.
RS485 Port* enables robust connectivity.
MODBUS Communication ensures smooth operation. * COM Option must be ordered for this function.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; engineered for superior capacity and reliability.
Our robust engine mounts effectively isolate vibrations, significantly reducing noise in both mobile and stationary equipment. Crafted from premium industrial-grade materials, they outlast cheaper alternatives, thereby extending the lifespan of your equipment.
Engineered for excellence, our professional gearboxes are designed for direct mounting on a diesel engine. They are pivotal in modulating speed—either accelerating or reducing—across diverse applications. On the input side, choose between an SAE housing with fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for tailored performance.
Industry: Unleashing Power in Boiler Feed Water Systems and Effortlessly Enhancing Cooling Systems
Smelting: Superior Efficiency in Water Circulation and Cooling Systems
Fire-fighting: Ensuring Safety in Fire Hydrant Systems, Sprinkler Systems, Advanced Spray Cooling Systems, Foam Systems, and Water Monitor Systems
Ocean: Reliable Solutions for Wild Water Supply Systems and Innovative Island Freshwater Collection Systems
Heating: Optimized Performance in Water Circulation and Cooling Systems
Municipal: Swift Emergency Drainage and Reliable Emergency Water Supply Solutions
Agriculture: Efficient Irrigation and Drainage Systems to Maximize Productivity
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with several prestigious pump-testing institutions across the nation, such as:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City,
The reputable Irrigation Machinery Products Quality Inspection Center of Machinery Industrial based in Zhenjiang City,
The distinguished Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the renowned Shanghai Mechanical and Electrical Products Quality Inspection Center within Shanghai City, among others.
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