Efficient consumption and easy maintenance:
SEMHAI Engines offers a wide portfolio of diesel engines for stationary applications such as centrifugal pumps, hydraulic pumps, air compressors and air generators. The engines are available in a variety of power ranges such as ION power from 415 kW to 920 kW or ICXN power from 377 kW to 836 kW in accordance with ISO 3046-1. The engines are approved for driving centrifugal pumps at variable speed and power consumption is in accordance with the respective propeller curve. The robust SEMHAI diesel engines for pump drives are noted for their reliable and fuel-efficient operation, ensuring efficiency due to long overhaul intervals and service life. This optimised power density turns our diesel engines into efficient and flexible energy suppliers.
Performance features
1,With 3 types of perfect starting-functions:
(1).Manual start function: Manual-start function can be achieved by manual- automatic interlock through the switch;
(2).Automatic-manual functions: allowance of 3 starting times,it issued a "starter failure alarm" and automatically exit the starting state if unsuccessful starting for 3 times; Time to the rated load start time is 5-10-15S (by unit capacity sizes ) after successful start for first time;
(3).Emergency manual direct start function: Manually direct start function of emergency can be achieved when the self-controlled device failures .
2. Automatic operation: When the pump unit receives a valid signal fire,the diesel fire pump will automatically start running if the pump can not start normally due to the power supply system of fire pump motor interrupt or phase or failure,once the power supply system returns to normal or electric pumps can be run properly, it can automatically switch to the electric pump.
3. Automatic shutdown: Diesel fire-fighting pump will delay and shut down automatically when the fire signal disappears..
4. The battery self-charge function: The battery can be charged automatically by electrical mains power of diesel engine, to ensure a smooth start of the unit.
5. Perfect indicating system: Ready to start, manual start, automatic start, unit operation, unit shutdown, battery charging, speeding, low oil pressure of lubrication oil, low oil pressure of turbocharger, low oil temperature of engine lubricating, high water temperature of cooling system, low voltage of battery, low fuel level , regular inspection.
6. Perfect alarm or protection system: Alarm or protection of failure start for 3 times, overspeed, low lubricant oil pressure,low oil pressure of turbocharger, high temperature of cooling water, low temperature of lubricating oil, automatic charging device failure,low battery voltage,high battery voltage,low fuel level.
7.Perfect display systems: engine oil pressure, engine speed, battery charge current, battery charging voltage.
8.Direct-coupled: Diesel engine and water pump are connected by high-flexible coupling, on common channel base, with compact structure, good overall performance, less failure and vibration, convenient installation on-site construction.
9.With high pressure and big flow capacity: By selection of IS series single-stage single-suction, SOW series single-stage double-suction pump, SHD series segmental multistage pumps, to meet the needs of different fire occasions.
10.Be adjustable of flow and working pressure: Diesel pumps fitted with mechanical or electronic speed governor, it can be adjusted to change the speed of the diesel engine when the pump flow and head are inconsistent with the actual data.
11.With pre-heating device of water temperature: The unit is equipped with AC220V cooling water preheating device, to guarantee the normal work environment at a temperature below 5 ºC
12.Double battery circuit: When a group of battery failure, another one can be automatically put into operation.
13.Maintenance-free battery: No need to add supplemental fluid frequently.
14. Automatic timing inspection test: Fire system usually is in standby mode, the unit can automatically complete the device testing for standby condition and timely warning.
Note: The above functions can be selected according to user needs, we can also make customized-design according to specific needs.
Selection configuration of diesel engine
1.The pump: IS series single-stage single-suction pump, SOW series single-stage double-suction pump,SHD series multistage segment pump, ZW horizontal self-priming centrifugal pump.
2.The diesel engine:
International famous brand of diesel engine with single-cylinder, two-cylinder, four-cylinder, six-cylinder diesel, and speed range: 1500r/min, 1800r/min, 2400r/min, and 3000r/min
3. Other accessories: Filtration system, silencer system, cooling system, fuel tank, common channel base, base fuel tank, radiator, battery, charger;
4.The control cabinet: SBC, PLC programming, sensor, automatic control cabinet.
| 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 |
International famous brand of diesel engine with single-cylinder, two-cylinder, four-cylinder, six-cylinder diesel, and speed range: 1500r/min, 1800r/min, 2400r/min, and 3000r/min
SEMHAI Robust professional coupling adaptors are used to connect diesel engines to drive pumps with a shaft.
The coupling adaptors connect to a standard coupling for a simple plug-in installation without aligning tools required. They are made from polyamide nylon reinforced with fibreglass therefore are torisonally rigid and maintenance free. Applications are any hydrostatic drive of construction machines, harvesters and forest machineries.
The Diesel Plus Fire Pump Controllers from SEMHAI are designed to control and monitor 12 or 24 volt, diesel fire pump engines and are among the most technically advanced diesel engine controllers available.
Features
Universal Supply Voltage 100Vac to 240Vac
Dual Output 12 or 24 Vdc - DIP Switch Selectable
Communications USB Port / Drive
Transfer Data to / from portable USB Device
Embedded Web Pages*
View Current Status, Data Values, Programmed Set Points and History
Ethernet* Direct Connection / Data Transfer with a Computer
RS485 Port*
MODBUS Communication * COM Option must be ordered for this function
New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank;
Robust isolate vibrations for marine and industrial engine mounts to reduce noise in mobile and stationary equipment. Our engine mounts are made with premium industrial grade materials which stay in service longer than cheaper mounts, prolonging the life of your equipment.
Professional gearboxes are designed for direct mounting on a diesel engine. These gearboxes are used for accelerating or reducing speed in a variety of applications. On the input side we mount either an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch.
Industry - Boiler feed water system, cooling system
Smelting - Water circulation system, cooling system
Fire-fighting - Fire hydrant systems, sprinkler systems, spray cooling system, foam system, water monitor system
Ocean - Wild water supply system, the island freshwater collection system
Heating - Water circulation system, cooling system
Municipal - Emergency drainage, emergency water supply
Agriculture - Irrigation and drainage systems
Professional cooperation agencies
This company has established long-term cooperation relationship with a number of large domestic pump-testing institutions, such as:
National Quality Supervision and Inspection Center of Industrial Pumps (Tiexi District,Shengyang city),
Irrigation Machinery Products Quality Inspection Center of Machinery Industrial (Zhenjiang City),
Ministry of Agriculture, Water Pump Quality Supervision and Testing Center (Chongqing city),
Shanghai Mechanical and Electrical Products Quality Inspection Center (Shanghai city) and so on.
Audited Supplier 
){kind=link}