Y-type pleated filter

All-plastic disc filter
Precise filtration: Different precision filter discs can be selected according to water requirements; various specifications are available.
Efficient Cleaning: High-speed and thorough backwashing can be completed in about 20 seconds.
Fully automatic operation, continuous water output: In the filter assembly, the backwashing process is alternately performed, and the working and backwashing states are automatically switched to ensure continuous water output and low system pressure loss.
Standard: Standard modular system design, can be added or removed as needed, flexible and variable, and highly interchangeable.
Non-standard: It can flexibly utilize corner spaces, and can be installed according to local conditions, occupying very little space.
Reliable operation, simple maintenance, almost no daily maintenance required, no special tools required, and few spare parts.
Long service life: High-tech plastic filter core, sturdy, wear-free, corrosion-free, and verified by years of industrial use, the filtration and backwashing effects will not deteriorate with increasing use time.
　　Different types of filters in filtration equipment are suitable for different water quality requirements. As a deep filtration device, the disc filter is mainly composed of a tank shell, discs, inlet and outlet ports, and a drain port. The material is usually high-quality engineering plastic with extremely high wear resistance. Supported by stainless steel springs, the structure is sturdy. One side of the disc is a continuous radial rib, and the other side is a set of concentric annular ribs; discs of the same specification are tightly assembled in the same way to form a cylinder with a large filtration surface area. When the filter is working, water flows from the inlet into the tank, flows from the outer ring of the disc through the rib gap to the inner ring, and the impurities in the water are intercepted in the impurity retention area between the discs, and the purified water converges to the outlet through the inner ring of the disc.
    When using a disc filter, pressure gauges should be installed at the inlet and outlet respectively, so that the degree of blockage of the disc gap and the quality of the effluent can be judged by the pressure difference between the inlet and outlet. If the pressure difference between the inlet and outlet exceeds the specified value, backwashing should be performed.

The backwashing steps of the disc filter are as follows:
(1) Open the drain valve;
(2) Close the outlet valve;
(3) Reciprocate the tank shell until the water discharged from the drain valve becomes clear.
(4) Open the outlet valve and close the drain valve.
The disc filter has the following characteristics:
(1) In filter equipment of the same volume, the disc filter has a larger filtration surface area.
(2) The water flow resistance is small, so the operating cost is lower.
(3) The space for debris retention is large, which means that the backwashing frequency is low.
(4) During backwashing, you only need to gently rotate the tank a few times, without disassembly, and it can be completed in a few tens of seconds.

　　The filtration degree of the disc filter on impurities in the water depends on the height of the circumferential ribs. The Manufacturer usually uses the color of the disc to distinguish its filtration accuracy. During the planning and design, it should be reasonably selected according to the water quality conditions and the requirements of the sprinkler irrigation system.

Working principle
The filter element of the disc filter, the disc is the impurity treatment carrier, which is composed of a group of plastic discs with different directional grooves on both sides superimposed on each other. The groove edges on their adjacent surfaces form many intersection points, which constitute a large number of cavities and irregular passages. These passages are continuously reduced from the outside to the inside. During filtration, these passages cause water turbulence, and ultimately cause the impurities in the water to be intercepted at various intersections. If the discs are stacked and installed on the filter core frame, under the action of the spring and the water pressure, a loose outer and tight inner filtration unit is formed. The discs pressed together by the spring and water pressure in each filtration unit form countless filter screens that impurity particles cannot pass through. The disc width is 12-14 mm, and the disc material is high-quality engineering plastic, with extremely high wear resistance. With stainless steel spring support, the structure is strong. The backwashing water flow washes the various impurities adhering to the surface of the disc along the tangential direction of the inner wall of the disc from the inside to the outside, and the disc rotates under the action of the backwashing water flow, ensuring that all dirt is effectively cleaned and discharged. All steps of backwashing can be controlled by the time interval and pressure difference. Once set, it can be used for a long time. The automatic backwashing filter completes the entire automatic backwashing process within seconds without interrupting operation. The filter using this filtration principle has a dynamically variable gap between the discs during filtration and backwashing, which is very beneficial to improving filtration performance and water quality, and can greatly reduce the amount of backwashing water. The self-consumption water is usually about 0.25%. The different depths and number of grooves on the discs determine the filtration accuracy of the filtration unit.

Working principle of filtration stage
Water flows through the filter inlet into the filter, and when passing through the filter disc, the filter disc is tightly pressed together under the action of spring force and water force. Impurity particles are retained at the intersection of the discs, and the filtered water flows out from the main channel of the filter. At this time, the one-way diaphragm valve is in the open state.
Fully automatic operation, continuous water output
　　Time and pressure difference control backwashing start. In the filter system, each filter unit and workstation are backwashed in sequence. Automatic switching between working and backwashing states ensures continuous water output, small system pressure loss, and the filtration and backwashing effects will not deteriorate with the use time.

Modular design
　　Users can add or remove the number of parallel filter units as needed, flexible and changeable, and strong interchangeability. It can flexibly utilize the corner space on site and install it in a space-saving manner according to local conditions.

Easy maintenance
　　Almost no daily maintenance is required, and inspection does not require special tools, and there are few detachable parts.

　　Like other filters, a disc filter consists of a filter shell and a filter element; the filter shell material is generally plastic, stainless steel, or plastic-coated carbon steel, and there are many shapes; the filter element is a hollow cylinder, which is composed of many annular plastic discs with micron-level equilateral triangular grooves on both sides assembled on a central skeleton. The discs, compressed by a spring and water pressure in each filtering unit, form countless layers of mesh that impurities cannot pass through, with a total thickness equivalent to 30 layers of ordinary filter screens.

　　The fully automatic disc filter is equipped with an electronic control device, which can control all the steps of backwashing using time intervals and pressure differences. Once set, it can be used for a long time. The automatic backwashing filter completes the entire automatic backwashing process in a few seconds without interrupting operation. Backwashing is automatically started by a preset time or pressure difference signal. The backwashing valve changes the direction of water flow in the filter unit, the spring on the filter core is pushed open by the water pressure, and all the discs and the small gaps between the discs are loosened. The nozzle located in the center of the filter core sprays water in a tangential direction, causing the discs to rotate. Under the scouring of the water flow and the centrifugal force of the high-speed rotation of the discs, the objects intercepted on the discs are washed away, thus achieving a good cleaning effect with a small amount of backwashing water. Then, the backwashing valve returns to the filtering position, and the spring on the filter core compresses the discs again, returning to the filtering state. The backwashing water is all system-filtered water.
Precise filtration
　　Different precision filter discs can be selected according to water requirements. There are various Specifications such as 20 microns, 55 microns, 100 microns, 130 microns, 200 microns, and 400 microns, and the filtration ratio is greater than 85%. Thoroughly efficient backwashing. Because the filter pores are completely opened during backwashing, coupled with the centrifugal jet effect, a cleaning effect unattainable by other filters is achieved. Each filter unit backwashing process can be completed in 10 to 20 seconds. Fully automatic operation, continuous water output Time and pressure difference control backwashing start. In the filter system, each filter unit and workstation are backwashed in sequence. Automatic switching between working and backwashing states ensures continuous water output, small system pressure loss, and the filtration and backwashing effects will not deteriorate with the use time. Modular design Users can add or remove the number of parallel filter units as needed, flexible and changeable, and strong interchangeability. It can flexibly utilize the corner space on site and install it in a space-saving manner according to local conditions. Easy maintenance Almost no daily maintenance is required, inspection does not require special tools, and there are few detachable parts.

　　The stacked filter core is composed of a group of discs with grooves on both sides. The intersection points formed by the groove edges can intercept solid substances in the water. Because it has both surface interception and deep coagulation, it greatly improves the filtration effect.
Features:
1. Long service life: The high-tech plastic filter core is strong, wear-free, and corrosion-free. It has been verified by years of industrial use, and the filtration and backwashing effects will not deteriorate with the use time.
High-efficiency backwashing: High-speed and thorough backwashing can be completed in about 7-15 seconds, and the backwashing water consumption is less than 0.5% of the filtered water.
Standard modularization: Standard modular system design, users can configure as needed, simple and flexible, and strong interchangeability.
Reliable operation and easy maintenance: Almost no daily maintenance is required, installation and operation are convenient, components are 100% factory tested and trial-run, no special tools are required, and few spare parts are required.
2. Precise filtration: Different precision filter discs can be selected according to water requirements. There are various Specifications such as 20 microns, 55 microns, 100 microns, 130 microns, 200 microns, and 400 microns, and the filtration ratio is greater than 85%.
Thorough and efficient backwashing: Because the filter pores are completely opened during backwashing, coupled with the centrifugal jet effect, a cleaning effect unattainable by other filters is achieved. Each filter unit backwashing process can be completed in 10 to 20 seconds.
Fully automatic operation, continuous water output: Time and pressure difference control backwashing start. In the filter system, each filter unit and workstation are backwashed in sequence. Automatic switching between working and backwashing states ensures continuous water output, small system pressure loss, and the filtration and backwashing effects will not deteriorate with the use time.
Modular Design: Users can add or remove filter units in parallel as needed, offering flexibility and interchangeability. It can make flexible use of on-site corner spaces, and is installed in a space-saving manner to suit local conditions.
Easy Maintenance: Requires virtually no daily maintenance; inspection does not require special tools, and there are very few removable parts.

The 3-inch stacked filter element consists of a set of grooved discs. The intersecting edges of the grooves trap solid matter in the water. Due to the combined effects of surface interception and deep coagulation, the filtration effect is greatly improved. Simultaneously, because the stacked filter system features highly efficient backwashing, fully automatic continuous operation, low self-water consumption, small footprint, and reliable operation, the backwashing process of the filtration system is carried out alternately, automatically switching between working and backwashing states to ensure continuous water output and low system pressure loss. Therefore, the technological advantages of the stacked filter system are quite obvious.
In order to achieve automatic backwashing of the stacked filter, high-flow stacked filter stations are composed of multiple units.
*The filter unit is made of a high-pressure resistant polyamide shell reinforced with fiberglass and secured with easy-to-open stainless steel clamps.
*The filter element frame is a complex and precise telescopic columnar structure, molded in one piece. The hydraulic actuating mechanism is located within the highly sealed columnar structure, effectively preventing blockage and failure, and extending the service life.
*High-strength polypropylene plates, under the pressure of the filter element, form a solid columnar filtration system, providing reliable filtration for various precision requirements.
*The filter's inlet and outlet pipes are made of pure plastic polyethylene pipes, offering better corrosion resistance.
Filtration Mode: In the filtration state, turbid water passes through the stacked plates from the outside of the filter element. Under the action of spring force and liquid force, the filter plates are tightly pressed together, and the impurity particles are trapped at the intersection of the plates. The filtered clean water flows out of the filter.