Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents an extensive range of high-performance diesel engines, specifically designed for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines are available in multiple power ranges, including ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all adhering to ISO 3046-1 standards. SEMHAI engines are engineered to power centrifugal pumps at variable speeds, optimizing power consumption in line with the specific propeller curve. Renowned for their robust and fuel-efficient operation, these engines offer unparalleled reliability and efficiency, courtesy of extended overhaul intervals and a long service life. This enhanced power density transforms our diesel engines into highly efficient and adaptable energy sources, making them the ideal choice for demanding applications.
Performance Features
1. Featuring Three Exemplary Starting Functions:
(1) Manual Start Function: Seamlessly switch between manual and automatic modes to achieve manual-start functionality, ensuring user control and flexibility.
(2) Automatic-Manual Functions: Enjoy the convenience of three automatic starting attempts. In the event of a start failure, a 'starter failure alarm' will be issued, automatically exiting the starting state. Once successfully started, the time to reach rated load is adjustable (5-10-15 seconds) based on unit capacity sizes.
(3) Emergency Manual Direct Start Function: In critical scenarios, manually initiate direct start when self-controlled systems falter, guaranteeing prompt response.
2. Automatic Operation: In the event of a fire, the diesel fire pump automatically activates upon receiving a valid signal. If power supply to the fire pump motor is interrupted, the diesel pump takes over. Once power is restored, or if electric pumps can operate, the system automatically switches to electric pump mode.
3. Automatic Shutdown: Following the disappearance of a fire signal, the diesel fire-fighting pump will execute a delayed automatic shutdown, ensuring safety and efficiency.
4. Battery Self-Charge Function: The battery is automatically charged using the diesel engine's electrical mains power, facilitating smooth unit startup.
5. Comprehensive Indicating System: The system displays a host of critical statuses including readiness to start, manual start, automatic start, unit operation, shutdown, battery charging, speed monitoring, lubrication oil pressure, turbocharger pressure, oil temperature, cooling system temperature, battery voltage, and fuel levels, alongside prompts for regular inspections.
6. Advanced Alarm and Protection System: This sophisticated system provides alerts and protection against failed starts, overspeed, low lubricant and turbocharger oil pressure, cooling water temperature spikes, low lubricating oil temperature, charging device failures, varied battery voltages, and low fuel levels, ensuring reliability and safety.
7. Superior Display Systems: Monitor engine oil pressure, engine speed, battery charge current, and battery charging voltage, keeping you informed of operational status at all times.
8. Direct-Coupled Excellence: Our diesel engine and water pump are seamlessly connected via a high-flexible coupling on a common channel base, ensuring compact structure, superior overall performance, minimal failure and vibration, and effortless installation during on-site construction.
9. High Pressure and Large Flow Capacity: Cater to diverse fire-fighting needs with a selection of IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps, all delivering exceptional pressure and flow capacity.
10. Adjustable Flow and Working Pressure: Equipped with mechanical or electronic speed governors, these diesel pumps allow adjustments to engine speed to match pump flow and head with actual data, offering unparalleled control.
11. Water Temperature Pre-Heating Device: An integrated AC220V cooling water pre-heating device guarantees normal operation in environments with temperatures as low as 5 ºC, ensuring readiness in all conditions.
12. Double Battery Circuit: In the event of a battery failure, an alternate battery seamlessly takes over, providing uninterrupted operation.
13. Maintenance-Free Battery: Designed for convenience, these batteries require no frequent supplemental fluid additions, simplifying upkeep and extending operational readiness.
14. Automatic Timing Inspection Test: In the realm of fire safety, systems often remain in standby, waiting for action. Our unit revolutionizes this standby mode by automatically executing comprehensive device testing, ensuring constant readiness. Additionally, it provides timely alerts, guaranteeing that your fire safety system is always primed for emergency response.
Note: The aforementioned features are fully customizable to meet your specific needs. We offer a range of selectable functions tailored to your requirements, and our bespoke design services ensure a perfect fit for every unique scenario.
Selection Configuration of Diesel Engine
1. The Pump: Our offering includes an array of pumps such as the IS series single-stage single-suction pump, the SOW series single-stage double-suction pump, the SHD series multistage segment pump, and the ZW horizontal self-priming centrifugal pump. Each is engineered for peak performance and reliability.
2. The Diesel Engine:
Engineered with precision, our diesel engines feature internationally renowned brands with options including single-cylinder, two-cylinder, four-cylinder, and six-cylinder models. These engines offer versatile speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, ensuring power and efficiency across diverse applications.
3. Other Accessories: Enhance your system with our comprehensive suite of accessories, including a robust filtration system, efficient silencer system, advanced cooling system, spacious fuel tank, common channel base, base fuel tank, radiator, reliable battery, and charger; all designed for seamless integration.
4. The Control Cabinet: Our control solutions include SBC, PLC programming, state-of-the-art sensors, and an automatic control cabinet, providing a sophisticated yet user-friendly interface for managing your fire pump system with precision and ease.
| 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 featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder variants, boasting versatile speed options of 1500r/min, 1800r/min, 2400r/min, and 3000r/min, cater to diverse operational demands.
The SEMHAI Robust professional coupling adaptors seamlessly connect diesel engines with drive pumps via a precision-engineered shaft, ensuring unmatched reliability and performance.
Our coupling adaptors offer easy, tool-free installation by connecting to standard couplings, thanks to their plug-in design. Crafted from polyamide nylon reinforced with fibreglass, they provide torsional rigidity and are maintenance-free, ideal for hydrostatic drives in construction machinery, harvesters, and forestry equipment.
SEMHAI's Diesel Plus Fire Pump Controllers are engineered to manage and oversee 12 or 24-volt diesel fire pump engines, standing at the forefront of technological advancement in diesel engine control systems.
Remarkable Features
Universal Supply Voltage ranging from 100Vac to 240Vac, catering to a broad spectrum of power requirements.
Dual Output capability with 12 or 24 Vdc, easily selectable via DIP switches for customizable functionality.
Advanced Communications through a USB Port / Drive, enabling seamless integration and data management.
Efficiently Transfer Data to and from a portable USB Device with ease, enhancing data mobility.
Embedded Web Pages* for intuitive navigation and effortless control over system parameters.
Gain insightful access to Current Status, Data Values, Programmed Set Points, and Historical Data.
Ethernet* Direct Connection enables swift Data Transfer with a Computer, streamlining operations.
RS485 Port* for robust connectivity options.
MODBUS Communication * requires COM Option for enhanced interaction capabilities.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, offering enhanced capacity and reliability.
Our robust engine mounts, crafted from top-tier industrial-grade materials, effectively isolate vibrations to reduce noise in both mobile and stationary equipment, ensuring longevity and reliability beyond standard mounts.
Our professional gearboxes are meticulously designed for direct diesel engine mounting, providing speed modulation for various applications. The input side accommodates an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch for versatile operational needs.
Industry - Elevate your operations with our specialized pump solutions for boiler feed water systems and cooling systems, ensuring optimal performance and reliability.
Smelting - Enhance your smelting processes with efficient water circulation and cooling systems, designed to meet the rigorous demands of the smelting industry.
Fire-fighting - Equip your fire-fighting arsenal with our top-tier centrifugal fire pumps, perfectly suited for fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, ensuring unparalleled safety and efficiency.
Ocean - Seamlessly address the challenges of water supply with our robust pump solutions, ideal for wild water supply systems and island freshwater collection systems, providing reliable water access wherever it's needed most.
Heating - Optimize your heating operations with advanced water circulation and cooling systems that deliver exceptional performance and energy efficiency.
Municipal - Be prepared for emergencies with our dependable pumps for municipal emergency drainage and water supply, designed to handle unexpected challenges with ease.
Agriculture - Ensure the sustainability and productivity of your agricultural operations with our superior pumps, crafted for efficient irrigation and drainage systems that meet the needs of modern agriculture.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd., a distinguished leader in the pump industry, has forged enduring partnerships with several prominent domestic pump-testing institutions, ensuring unrivaled quality and performance. Our collaborators include:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City, renowned for its rigorous testing standards,
The prestigious Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, celebrated for its meticulous quality assessments,
The authoritative Ministry of Agriculture, Water Pump Quality Supervision and Testing Center nestled in Chongqing City, known for its comprehensive evaluations,
The reputable Shanghai Mechanical and Electrical Products Quality Inspection Center, based in the bustling city of Shanghai, recognized for its exhaustive inspection protocols, among others.
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