LFZT straight through fully automatic sewage filter pipeline horizontal self-cleaning water filtration equipment

Product basic parameters and core structure

1. Product model: LFZT series straight through fully automatic sewage filter, covering multiple models from LFZT-80 to LFZT-400, with inlet and outlet diameters of DN80~DN400, rated flow rate of 50~1260m ³/h, and can be matched with pipeline systems of different flow levels.

2. Structural form: Horizontal straight through pipeline structure, supporting two types of pipeline installation schemes: right angle and horizontal, which can adapt to compact installation space on site and reduce civil engineering occupation.

3. Main material: The shell can be made of carbon steel, 304 stainless steel, or 316L stainless steel; The filter and brush holder are made of 304/316L stainless steel, which is corrosion-resistant; The sealing ring is made of EPDM rubber, and the material of the drain valve is divided into two types: cast iron and stainless steel, suitable for clean water and mildly corrosive media.

4. Drive and Electronic Control: Equipped with a cleaning motor with a power range of 0.09kW~0.25kW, paired with a dedicated electronic control controller to monitor pressure difference signals in real time and automatically start the cleaning process.

5. Discharge structure: Independent discharge outlet design, equipped with automatic discharge valve, opens the discharge while scanning and cleaning the filter screen with the brush body, with high impurity discharge efficiency.

6. Cleaning components: The cleaning brush is made of stainless steel and nylon composite material, which rotates and scans tightly against the inner surface of the filter screen, and can efficiently remove suspended solids, sediment, and fiber impurities attached to the filter screen.

7. Installation and adaptation: complete size parameters are provided, A/B/C/D external dimensions are standardized, flange interfaces comply with general industrial pipeline standards, and on-site docking is convenient.

8. Whole machine weight: The weight range of a single device is 80kg~590kg, with a compact structure and small lifting and on-site installation workload.

9. Operating characteristics: During the cleaning and sewage operation, the main pipeline medium continues to circulate without cutting off the system water supply, ensuring the continuous operation of downstream processes.

10. Factory inspection: Each device undergoes pressure sealing testing, motor action verification, and electronic control logic simulation debugging, accompanied by product drawings, inspection reports, and certificates of conformity, to meet the requirements of engineering bidding and project acceptance.

Applicable industries and equipment operating conditions of the product

1. Industrial cooling water treatment: Circulating cooling water full flow and bypass filtration, intercepting pipeline rust products, sediment impurities, protecting heat exchangers and nozzles, and preventing nozzle blockage from affecting heat transfer efficiency.

2. Water treatment pretreatment scenarios: three-level sewage treatment, municipal water reuse, workshop production water, reverse osmosis RO system pre filtration, reducing suspended solids content, reducing membrane element pollution load, and extending membrane service life.

3. Chemical and acid washing conditions: Acid washing process media filtration, removal of solid particle impurities, protection of backend process equipment, and adaptation to mildly corrosive fluids.

4. Light manufacturing industry: filtration of papermaking white water, water supply for injection molding machines, pasteurization systems, vacuum pumps, air compressors, continuous casting systems, and pipeline filtration for refrigeration and heating water systems.

5. Landscape and agricultural irrigation: Treatment of groundwater, municipal water, river and lake seawater sources, used for orchard, nursery, greenhouse, golf course, park sprinkler and drip irrigation systems, intercepting water plants and sediment, and preventing drip irrigation pipeline blockage.

The LFZT straight through fully automatic sewage filter is different from the vertical self-cleaning filter. It adopts a horizontal pipeline integrated layout and can be directly connected to the horizontal pipeline without reserving a vertical installation height. It is especially suitable for sites with limited floor height such as computer rooms and pipe galleries. The equipment relies on built-in brush body mechanical scanning to clean the filter screen, without the need to replace the filter element and bag, with automated online sewage discharge, taking into account the characteristics of high flux, continuous water supply, and low operation and maintenance costs. It is the preferred equipment for pipeline pre protection.

Core competitive advantages of the product

1. Straight through horizontal compact structure: With a straight through design, horizontal pipelines can be directly connected in series, occupying a small area and requiring low installation space. It is suitable for pipeline corridors and narrow computer room renovation projects.

2. Multiple materials can be selected to adapt to complex media: the shell and filter can be upgraded to 316L stainless steel, which can cope with seawater and mildly corrosive process water, and has a wider range of applicable media.

3. Online cleaning with uninterrupted water supply: Automatic differential pressure sensing triggers cleaning, and the main pipeline continues to supply water during the cleaning and drainage process, without interrupting downstream production and irrigation water, ensuring process continuity.

4. Long term operation without consumables: Stainless steel filter screen is wear-resistant and corrosion-resistant, can be used for a long time, and does not require frequent replacement of filter elements; Only a small number of vulnerable parts such as seals and motors require low long-term operation and maintenance investment.

5. Flexible and diverse installation: Supports two installation options: right angle installation and horizontal installation. It can be flexibly arranged according to the direction of the on-site pipeline and adapted to various pipeline renovation scenarios.

6. Intelligent automatic operation: relying on differential pressure signals to automatically identify the degree of filter blockage, autonomously initiate cleaning and sewage discharge, reduce manual inspection intervention, and simplify operation and management.

Frequently Asked Questions (FAQ)

Q1: What is the working principle of LFZT straight through fully automatic sewage filter?

A: The fluid enters the filter cylinder through the pipeline, and suspended impurities in the water are trapped inside the stainless steel filter screen; The continuous accumulation of impurities causes an increase in the pressure difference between the inlet and outlet. When the pressure difference reaches the set threshold, the controller starts the cleaning motor, drives the nylon/stainless steel brush body to rotate and scan the filter screen, peels off the attached impurities, and automatically opens the drain valve to discharge the impurities. During the cleaning process, the main pipeline should be kept flowing with water. After the cleaning is completed, the motor and drain valve will automatically reset, and the filtering operation will continue.

Q2: What are the main differences between straight through and vertical fully automatic self-cleaning filters?

A: The core difference lies in the structure and installation method. The LFZT straight through type is a horizontal pipeline structure that directly connects horizontal pipelines in series. It has low requirements for vertical installation height and is suitable for narrow space pipe galleries; The vertical filter cylinder is arranged vertically, and vertical space needs to be reserved. Both support online cleaning with uninterrupted water supply, and the selection is mainly based on on-site installation conditions.

Q3: What material selection does the device support, and can it handle seawater?

A: The shell can be made of carbon steel, 304 stainless steel, or 316L stainless steel. 316L stainless steel is preferred for the filter screen and brush holder, with EPDM seals. When dealing with seawater and saline media, it is recommended to upgrade the 316L material to enhance the equipment's resistance to chloride ion corrosion.

Q4: What are the installation methods and what are the requirements for on-site pipelines?

A: Supports two forms of installation: right angle installation and horizontal installation. The equipment adopts flange interfaces and is connected in series in the main pipeline. Reserve maintenance space during installation, and install shut-off valves and bypass pipelines in front and behind the equipment to facilitate later maintenance.

Q5: Does the equipment need to be shut down for cleaning during operation?

A: No need to shut down. The main pipeline water flow during the cleaning and sewage stage remains continuous, and the downstream system will not be interrupted, making it suitable for industrial production and large-scale irrigation systems that operate 24 hours a day without interruption.

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