Efficient Consumption and Effortless Maintenance:
SEMHAI Engines proudly presents an extensive array of diesel engines meticulously crafted for stationary applications, including centrifugal pumps, hydraulic systems, air compressors, and generators. These engines span a diverse range of power outputs, featuring ION ranges from 415 kW to 920 kW, and ICXN ranges from 377 kW to 836 kW, all meeting the stringent standards of ISO 3046-1. Designed to seamlessly drive centrifugal pumps with variable speeds, these engines optimize power consumption aligned with the propeller curve, offering unparalleled reliability and fuel efficiency. With enduring operational life and extended overhaul intervals, SEMHAI diesel engines stand as paragons of flexibility and energy efficiency, revolutionizing power density in pump drives.
Performance Features
1. Equipped with Three Premium Starting Functions:
(1). Manual Start Function: Achieve manual start with manual-automatic interlock via switch for seamless operation.
(2). Automatic-Manual Functions: Enjoy three starting attempts, with a 'starter failure alarm' activating and exiting the starting state after three unsuccessful tries. Transition to rated load within 5 to 15 seconds, tailored to unit capacity, post successful initial start.
(3). Emergency Manual Direct Start Function: In the rare event of self-controlled device failure, manually initiate emergency direct start to ensure uninterrupted operation.
2. Automatic Operation: The diesel fire pump automatically springs into action upon receiving a valid fire signal, ensuring reliability even when the power supply to the pump motor is disrupted. Once normal power resumes or electric pumps are operational, the system seamlessly switches to the electric pump, guaranteeing continuous protection.
3. Automatic Shutdown: Experience peace of mind with the diesel fire-fighting pump's automatic delay and shutdown feature, activated once the fire signal is no longer present.
4. Battery Self-Charge Function: Ensure the uncompromised starting of the unit with the automatic battery charging capability through the diesel engine's electrical mains power.
5. Comprehensive Indicating System: Stay informed with an array of indicators for readiness, manual and automatic start, unit operation, shutdown, battery charging, overspeed, low oil pressures, high water temperature, low battery voltage, and fuel levels, complemented by regular inspection prompts.
6. Robust Alarm and Protection System: Safeguard your operations with alarms and protections against three-time starting failures, overspeed, low lubricant pressures, cooling water temperatures, lubricating oil temperatures, automatic charging failures, battery voltage discrepancies, and low fuel levels.
7. Complete Display Systems: Monitor engine oil pressure, engine speed, battery charge current, and charging voltage with our precise display systems, ensuring optimal performance at a glance.
8. Direct-Coupled Innovation: Experience the seamless integration of the diesel engine and water pump through high-flexible coupling on a common base. This design offers a compact structure with superior performance, reduced vibrations and failures, and effortless on-site installation.
9. High Pressure and Large Flow Capacity: Tailor your fire protection solutions with our selection of IS series single-stage single-suction, SOW series single-stage double-suction, and SHD series multistage pumps, adeptly meeting diverse fire emergency requirements.
10. Adjustable Flow and Working Pressure: Equip your diesel pumps with mechanical or electronic speed governors, allowing for precise adjustments in diesel engine speed to match pump flow and head with actual field data.
11. Pre-Heating Water Temperature Device: Operate efficiently in colder climates with an AC220V cooling water preheating device, ensuring optimal performance even at temperatures below 5 ºC.
12. Dual Battery Circuit: Enjoy redundancy with a double battery circuit system that automatically engages a backup battery in case of primary battery failure.
13. Maintenance-Free Battery: Experience the convenience of our maintenance-free batteries, eliminating the frequent need for supplemental fluid, thereby enhancing operational efficiency and reliability.
14. Automatic Timing Inspection Test: The fire system is typically set in standby mode, allowing the unit to autonomously perform comprehensive device testing. This ensures readiness and provides timely warnings, safeguarding against any potential malfunctions.
Note: The aforementioned features are customizable to meet user preferences. Our team is committed to delivering bespoke designs tailored to your distinct requirements, ensuring utmost satisfaction and functionality.
Selection Configuration of Diesel Engine
1. The Pump: Choose from an array of sophisticated pumps including the IS series single-stage single-suction pump, the robust SOW series single-stage double-suction pump, the versatile SHD series multistage segment pump, and the reliable ZW horizontal self-priming centrifugal pump.
2. The Diesel Engine:
Explore our selection of internationally renowned diesel engines, available in single, two, four, and six-cylinder models. These engines boast speeds ranging from 1500r/min to 3000r/min, ensuring optimal performance and reliability.
3. Other Accessories: Enhance your setup with our comprehensive range of accessories, including an advanced filtration system, efficient silencer system, state-of-the-art cooling system, spacious fuel tank, versatile common channel base, robust base fuel tank, high-performance radiator, durable battery, and reliable charger;
4. The Control Cabinet: Featuring SBC, PLC programming, sensors, and an automatic control cabinet, our control systems are designed to deliver seamless automation and precise 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 |
Our product features an internationally renowned brand of diesel engine, offering options ranging from single-cylinder to six-cylinder configurations. These engines operate across a versatile speed range, including 1500r/min, 1800r/min, 2400r/min, and 3000r/min, providing flexibility and robust performance for diverse applications.
The SEMHAI Robust Professional Coupling Adaptors are meticulously crafted to connect diesel engines seamlessly to drive pumps via a shaft. Designed for excellence, these adaptors ensure a reliable connection and optimal performance every time.
Experience effortless installation with our coupling adaptors that connect to a standard coupling for a quick plug-in setup. No aligning tools are needed! Made from polyamide nylon reinforced with fibreglass, these adaptors are torsionally rigid and maintenance-free, ideal for hydrostatic drives in construction machines, harvesters, and forest machinery.
Discover the SEMHAI Diesel Plus Fire Pump Controllers, engineered to command and oversee diesel fire pump engines with either 12 or 24-volt systems. These controllers are at the pinnacle of technical advancement, providing unparalleled control and monitoring capabilities.
Features
Reliable Universal Supply Voltage ranging from 100Vac to 240Vac for versatile connections.
Dual Output of 12 or 24 Vdc, selectable via DIP switch, offering flexibility in voltage requirements.
Equipped with a USB Port/Drive for seamless communication and connectivity.
Effortlessly transfer data to and from a portable USB device, enhancing convenience and portability.
Embedded Web Pages* for easy access and monitoring of system parameters.
Get a comprehensive view of current status, data values, programmed set points, and historical data at a glance.
Ethernet* Direct Connection for efficient data transfer with a computer, enhancing connectivity.
RS485 Port* for robust and reliable communication.
MODBUS Communication available* with the required COM option, facilitating advanced system integrations.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for durability and efficiency.
Our robust engine mounts isolate vibrations effectively for both marine and industrial applications, significantly reducing noise in mobile and stationary equipment. Crafted from premium industrial-grade materials, these mounts outlast cheaper alternatives, ensuring a longer lifespan and enhanced equipment performance.
Our professional gearboxes are engineered for direct mounting on diesel engines, offering the capability to accelerate or reduce speed across various applications. The input side is equipped with either an SAE housing with a fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch, ensuring adaptability and precision.
Industry - Essential for boiler feed water systems and cooling systems, ensuring efficient operations and safety.
Smelting - Key to maintaining optimal water circulation and cooling in smelting operations.
Fire-fighting - Integral to fire safety with comprehensive coverage in fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems.
Ocean - Vital for managing wild water supply systems and freshwater collection systems on islands, ensuring sustainable water access.
Heating - Crucial for maintaining efficient water circulation and cooling in heating systems.
Municipal - Indispensable for emergency drainage and water supply, enhancing reliability in municipal infrastructure.
Agriculture - A cornerstone for effective irrigation and drainage systems, supporting agricultural productivity.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has proudly fostered enduring partnerships with leading domestic pump-testing institutions. Our dedication to excellence is reflected in these esteemed collaborations, which include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City, renowned for its stringent quality checks and industry-leading standards.
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, a premier establishment known for meticulous evaluation and assurance of irrigation machinery.
The Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, a pivotal institution ensuring top-tier standards in agricultural pump quality.
Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, a distinguished center committed to the rigorous inspection and quality assurance of mechanical and electrical products.
Audited Supplier 
){kind=link}