Efficient Consumption and Easy Maintenance:
SEMHAI Engines proudly presents an extensive array of diesel engines tailored for stationary applications, including centrifugal pumps, hydraulic pumps, air compressors, and air generators. Our engines boast a diversified power range, featuring ION power from 415 kW to 920 kW and ICXN power from 377 kW to 836 kW, all certified in accordance with ISO 3046-1 standards. These engines are expertly engineered to drive centrifugal pumps at variable speeds, aligning power consumption with the propeller curve. Renowned for their robustness, SEMHAI diesel engines are synonymous with reliability and superior fuel efficiency, offering prolonged overhaul intervals and an extended service life. The optimized power density of our diesel engines transforms them into unmatched energy powerhouses that deliver both efficiency and flexibility to users.
Performance Features
1. Featuring Three Types of Perfect Starting-Functions:
(1). Manual Start Function: Achieve seamless manual-start functionality with a manual-automatic interlock switch system that ensures smooth operations.
(2). Automatic-Manual Functions: Experience the convenience of three starting attempts. If unsuccessful, a 'starter failure alarm' is triggered, prompting an automatic exit from the starting state. Upon successful initial start, transition to rated load start times of 5-10-15 seconds based on unit capacity size.
(3). Emergency Manual Direct Start Function: In case of self-controlled device failures, the emergency manual direct start function provides an immediate solution, ensuring uninterrupted operations.
2. Automatic Operation: Upon receiving a valid fire signal, the diesel fire pump automatically activates if the pump fails to start due to power supply issues. Once the power supply system stabilizes, the electric pump seamlessly takes over, ensuring reliable performance.
3. Automatic Shutdown: Experience peace of mind with an automatic shutdown feature that activates after fire signals dissipate, ensuring efficient energy management.
4. Battery Self-Charge Function: Keep operations running smoothly with an automatic battery charging system powered by the diesel engine's electrical mains, guaranteeing effortless unit startups.
5. Comprehensive Indicating System: Stay informed with indicators for ready-to-start, manual start, automatic start, unit operation, shutdown, battery charging, and more, including low oil pressure, high water temperature, and low fuel level alerts.
6. Comprehensive Alarm and Protection System: Safeguard your operations with alarms for triple start failures, overspeed, low lubricant oil pressure, high cooling water temperature, and other essential parameters to ensure uninterrupted performance.
7. Comprehensive Display Systems: Monitor crucial metrics like engine oil pressure, engine speed, battery charge current, and voltage for efficient diagnostics and maintenance.
8. Direct-Coupled Efficiency: Achieve exceptional performance with the diesel engine and water pump connection via a high-flexible coupling on a common channel base, providing a compact structure, minimal failures, and easy on-site installation.
9. High Pressure and Large Flow Capacity: Choose from IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series segmental multistage pumps to address diverse fire-fighting requirements effectively.
10. Adjustable Flow and Working Pressure: Equip diesel pumps with mechanical or electronic speed governors to adapt engine speed according to actual data, ensuring consistent pump flow and head performance.
11. Water Temperature Pre-Heating Device: Maintain an optimal working environment with an AC220V cooling water pre-heating device, ensuring functionality even at temperatures below 5 ºC.
12. Double Battery Circuit: Enhance reliability with a dual battery circuit that automatically engages a backup battery in case of a primary battery failure.
13. Maintenance-Free Battery: Enjoy the convenience of a maintenance-free battery, eliminating the need for frequent supplemental fluid additions.
14. Automatic Timing Inspection Test: In its typical standby mode, the fire system is poised and ready with an autonomous operation that performs device testing to ensure standby conditions are met, while offering prompt warnings when necessary.
Note: The outlined features offer a customizable experience tailored to user preferences. We pride ourselves on our ability to create bespoke designs tailored to your specific requirements.
Selection configuration of diesel engine
1. The Pump: Our selection includes 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.
2. The Diesel Engine:
Renowned international brands bring you a diverse range of diesel engines, featuring single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. Enjoy flexibility with speed ranges of 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
3. Other Accessories: Enhance performance and efficiency with our comprehensive range of accessories, including a filtration system, silencer system, cooling system, fuel tank, common channel base, base fuel tank, radiator, battery, and charger.
4. The Control Cabinet: Equipped with SBC, PLC programming capabilities, sensors, and an automatic control cabinet, ensuring seamless integration and management.
| 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 |
Boasting internationally renowned diesel engine brands, our range includes single-cylinder to six-cylinder diesel engines, each engineered for superior performance. Experience a versatile speed spectrum: 1500r/min, 1800r/min, 2400r/min, and a peak of 3000r/min.
SEMHAI's robust professional coupling adaptors are meticulously crafted for seamlessly connecting diesel engines to drive pumps with precision-engineered shafts.
Effortless Installation: Our coupling adaptors connect with standard couplings, allowing for a straightforward plug-in setup without alignment tools. Crafted from polyamide nylon and fortified with fiberglass, these adaptors are torsionally rigid and require zero maintenance. Perfect for hydrostatic drives across construction machines, harvesters, and forestry equipment.
SEMHAI's Diesel Plus Fire Pump Controllers are engineered for excellence in controlling and monitoring 12 or 24 volt diesel fire pump engines. Experience cutting-edge technology with some of the most advanced diesel engine controllers in the industry.
Outstanding Features
Adaptable Universal Supply Voltage from 100Vac to 240Vac
Versatile Dual Output of 12 or 24 Vdc - Easily Switchable via DIP
Innovative Communications through USB Port / Drive
Effortlessly Transfer Data to/from any portable USB Device
Integrated Web Pages for Enhanced Interaction*
Comprehensive Viewing of Current Status, Data Values, Programmed Set Points, and Historical Data
Direct Ethernet Connection for Seamless Data Transfer with Computers*
Robust RS485 Port for Reliable Communication*
Seamless MODBUS Communication * COM Option must be ordered to unlock this feature
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank; engineered for optimal performance and safety.
Engine Mount Innovation: Our premium-grade engine mounts effectively isolate vibrations for both marine and industrial applications, significantly reducing noise in mobile and stationary equipment. Crafted for durability, these mounts extend the lifespan of your equipment beyond conventional options.
Precision Engineered Gearboxes for direct diesel engine mounting. Ideal for speed modulation in diverse applications, featuring an input side mount with either an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch.
Industry - Experience unrivaled efficiency in boiler feed water systems and cooling systems with our innovative solutions.
Smelting - Optimize your operations with our advanced water circulation and cooling systems, designed to maximize performance and reliability.
Fire-fighting - Trust our superior fire hydrant systems, sprinkler systems, spray cooling, foam systems, and water monitor systems to keep you safe in critical moments.
Ocean - Ensure reliable wild water supply and island freshwater collection with our cutting-edge solutions tailored for marine environments.
Heating - Enhance your heating operations with our state-of-the-art water circulation and cooling systems, ensuring optimal thermal management.
Municipal - Be prepared with our top-notch emergency drainage and water supply systems, delivering immediate response in urgent situations.
Agriculture - Boost agricultural productivity with our efficient irrigation and drainage systems, designed to meet the rigorous demands of modern farming.
Professional Cooperative Agencies
Shanghai Semhai Pump Co., Ltd. has forged strong, enduring partnerships with several prestigious and large-scale domestic pump-testing authorities. These relationships are a testament to our commitment to quality and innovation, and include:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial situated in Zhenjiang City,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center based in Chongqing City,
And the highly regarded Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among others.
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