The Unite U-FB-T series tubular backwashing filter is a fully automatic filtration system based on a modular design concept. It features high reliability, flexible expandability, durable automatic operation, no requirement for manual cleaning, and easy maintenance. The system adopts a unique V-UNITE filter element, which enables efficient backwashing with minimal backwash fluid consumption.
Compared with conventional single-unit filter designs, the tubular structure is more suitable for high-viscosity media that are difficult to clean. The compact design requires less installation space and allows flexible module expansion or reduction according to different flow rate requirements.
Employs specially designed filtration media and structural configurations to effectively remove particulates, suspended solids, and impurities from liquids, thereby achieving high-standard filtration precision.
Features a large filtration surface area and an optimized flow channel design, enabling the processing of high-volume liquid flows; this makes it ideal for industrial production environments with demanding throughput requirements.
Boasts a compact design with a small footprint, facilitating easy installation and maintenance; it is particularly well-suited for industrial settings where space is limited.
Incorporates a user-friendly design that ensures simple and convenient operation; it readily integrates with automated control systems, thereby reducing manual labor requirements.
Certain tubular filter models are equipped with backwashing or regeneration functions, allowing for the in-situ cleaning or regeneration of filter elements—a feature that extends the service life of the elements and lowers overall operating costs.
During filtration, raw liquid enters the system through the inlet manifold and flows into each filtration unit. The liquid passes through the filter element from the outside to the inside, while particulate impurities are intercepted on the outer surface of the filter element, gradually forming a filter cake. The clarified liquid flows into the outlet manifold and is discharged from the system.
When the filtration pressure difference reaches the preset value (usually 70–130 KPa), or the cleaning cycle is completed, the control system automatically starts the backwashing process. Each filtration unit is backwashed one by one, while the other units continue filtering normally to ensure continuous operation.
During filtration, the inlet and outlet valves remain open, and the backwash valve is closed. During backwashing, the control system closes the inlet valve of the selected filtration unit and opens the backwash valve. Due to the pressure difference between the inside of the filter element and the backwash outlet, clarified liquid from other filtration units flows backward through the filter element, removing impurities from the outer surface.
The flushed impurities are discharged through the backwash manifold. After cleaning, the backwash valve closes and the inlet valve opens to resume filtration. The control system repeats the same process for each filtration unit until all units are cleaned sequentially.
Multi - tube design permits various combinations of different types to match actual processing capacity.
The system supports 24 - hour continuous filtration and operates fully automatically.
The filtration equipment employs pneumatic drain valves, ensuring short backwashing time, low water consumption, environmental friendliness, and cost - effectiveness.
It's convenient for maintenance as individual components can be checked or cleaned without impacting the overall equipment operation.
During backwashing, filtration units can be backwashed sequentially, one at a time.
The filter utilizes a Siemens PLC control system, which allows for remote control operations.
| Model | Caliber (DN) | Filter Area (m) | ΦD | L | W | H |
|---|---|---|---|---|---|---|
| FC-T-3 | 50 | 3.0*4 | 406 | 5500 | 1800 | 2700 |
| FC-T-4.8 | 100 | 4.8*4 | 508 | 6100 | 1900 | 3000 |
| FC-T-5.8 | 100 | 5.8*4 | 550 | 6400 | 1950 | 3100 |
| FC-T-6.8 | 100 | 6.8*4 | 600 | 6900 | 2000 | 3100 |
| FC-T-8.6 | 125 | 8.6*4 | 650 | 7400 | 2050 | 3200 |
| FC-T-9.5 | 125 | 9.5*4 | 700 | 8000 | 2100 | 3300 |
| FC-T-12 | 150 | 12*4 | 800 | 8700 | 2200 | 3600 |
| FC-T-23.1 | 200 | 23.1*4 | 900 | 9500 | 2350 | 4300 |
| FC-T-27 | 250 | 27*4 | 1000 | 10500 | 2500 | 4500 |
| FC-T-37.2 | 250 | 37.2*4 | 1200 | 11500 | 2800 | 4900 |
| FC-T-73.4 | 350 | 73.4*4 | 1400 | 12500 | 3100 | 5800 |
| FC-T-92.6 | 400 | 92.6*4 | 1600 | 13500 | 13500 | 6300 |
| FC-T-116.8 | 450 | 116.8*4 | 1800 | 14500 | 14500 | 6500 |
| Pressure gauge | CL / 1/4" Male Thread (for Ball Valve and Pressure Gauge) | |||||
A Tubular Filtration System is an industrial filtration process that uses tubular membranes or filter elements to separate solids from liquids. It is designed for high-viscosity fluids, high-solid-content slurries, and demanding process conditions.
The feed liquid is pumped through tubular filter elements at high velocity. Smaller particles pass through the membrane as filtrate, while larger solids are retained and carried away by cross-flow or periodic cleaning.
Key advantages include strong fouling resistance, ability to handle high solid loads, stable operation under harsh conditions, easy cleaning, and suitability for continuous industrial processes.
These systems are widely used in chemical processing, mining, wastewater treatment, food and beverage, pharmaceuticals, and biotech industries, especially where high viscosity or abrasive materials are involved.
It is best used when the process involves high solids concentration, viscous fluids, or abrasive slurries that would quickly clog conventional membrane or cartridge filtration systems.
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The successful application of Unite's fully automatic backwash filtration system in lithium battery projects has realized fully automatic and closed o
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