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E-mail
shldgl@163.com
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Phone
15001848572,18101855768,17321354635
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Address
No. 678 Guangda Road, Qingcun Town, Fengxian District, Shanghai
Shanghai Luda Environmental Protection Equipment Co., Ltd
shldgl@163.com
15001848572,18101855768,17321354635
No. 678 Guangda Road, Qingcun Town, Fengxian District, Shanghai
Product Introduction:
Ring scraping self-cleaning filterIt is a precision equipment that uses a filter screen to directly intercept impurities in water, remove suspended solids and particulate matter, reduce turbidity, purify water quality, and reduce the production of system dirt, bacteria, algae, rust, etc., in order to purify water quality and protect the normal operation of other equipment in the system. Water enters the self-cleaning filter body through the inlet, and due to intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and send a signal to the discharge valve for automatic discharge.

Ring scraping self-cleaning filterThe principle water enters through the inlet, first passing through a coarse filter to filter out larger particles of impurities, and then reaching a fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water, forming a filter impurity layer. As the impurity layer accumulates on the inner side of the fine filter, a pressure difference is formed on the inner and outer sides of the fine filter. When the pressure difference of the filter reaches the preset value, the automatic cleaning process will begin, during which the clean water supply continues to flow. The cleaning valve opens, and the water pressure in the cleaning chamber and the suction pipe drops significantly. Through the pressure difference between the filter cartridge and the suction pipe, a suction force is generated between the suction pipe and the cleaning chamber through the suction nozzle, forming a suction process. At the same time, the electric motor drives the suction pipe to spiral along the axial direction. The combination of axial and rotational motion of the suction device thoroughly cleans the entire inner surface of the filter screen. The entire flushing process only takes a few tens of seconds. The drain valve is closed at the end of cleaning. The filter is preparing for the next flushing cycle.
The water to be treated enters the body through the inlet, and impurities in the water deposit on the stainless steel filter screen, resulting in a pressure difference. By monitoring the pressure difference between the inlet and outlet through a differential pressure switch, when the pressure difference reaches the set value, the electronic controller sends signals to the hydraulic control valve and the driving motor, triggering the following actions: the motor drives the brush to rotate, cleaning the filter element, and at the same time, the control valve opens for sewage discharge. The entire cleaning process only lasts for a few tens of seconds. When the cleaning is completed, the control valve is closed, the motor stops rotating, and the system returns to its initial state, starting the next filtration process. After installation, the equipment is debugged by technicians to set the filtration time and cleaning conversion time. The water to be treated enters the body through the inlet, and the filter starts to work normally. When the preset cleaning time is reached, the electronic controller sends signals to the hydraulic control valve and the driving motor, triggering the following actions: the motor drives the brush to rotate, cleaning the filter element, and at the same time, the control valve opens for sewage discharge. The entire cleaning process only lasts for a few tens of seconds. When the cleaning is completed, the control valve is closed, the motor stops rotating, the system returns to its initial state, and the next filtration process begins.
■ Performance parameters:
| Main performance parameters | N21 | N43 | N71 | W09 | W11 | W22 | W34 | W55 | ||||||||||||
Filter area (cm2) |
2140 | 4280 | 7140 | 880 | 1140 | 2280 | 3480 | 5550 | ||||||||||||
| Optional precision (μ m) | 100-3000 | 30-3000 | ||||||||||||||||||
| *Ideal flow rate (m3/h) | 3.7-24 | 7.4-49 | 12-82 | 1.5-10 | 2.0-13 | 3.9-26 | 6.0-40 | 9.6-64 | ||||||||||||
| ***Working temperature (℃) | 200 | |||||||||||||||||||
| *Work pressure (MPa) | 0.1-1 | |||||||||||||||||||
| Volume (L) | 35 | 53 | 141 | 10 | 18 | 29 | 83 | 175 | ||||||||||||
| Import and export connection method | Thread or flange | |||||||||||||||||||
| 25 | 40 | 80 | 25 | 25 | 80 | 40 | ||||||||||||||
| 40 | 50 | 100 | 25 | 40 | 100 | 50 | ||||||||||||||
| Import and export dimensions (DN) | 40 | |||||||||||||||||||
| 50 | 80 | 125 | 40 | 50 | 125 | 80 | ||||||||||||||
| 50 | ||||||||||||||||||||
| 80 | 100 | 150 | 80 | 150 | 100 | |||||||||||||||
| Discharge outlet size (DN) | 25 | 40 | 50 | 15 | 25 | 25 | 40 | 40 | ||||||||||||
| motor | Power 180W, three-phase 380V | |||||||||||||||||||
| Pneumatic drain valve | Gas source requirement: 5 SCFM (m3/h); *Small pressure 0.4MPa, * * pressure 0.8MPa | |||||||||||||||||||
| control box | 220V | |||||||||||||||||||
*Ideal flow rate (100 μ m): For reference only. The flow rate is affected by liquid viscosity, filtration accuracy, and cleanliness. Please confirm with the filtration engineer from Shanghai Filter. * * * Working temperature: High temperature resistant sealing rings and sealing mechanisms are required to achieve * * Working pressure: This is the standard working pressure. If higher working pressure is required, customization can be made.
■ Component Material:
| Component Name | N21 | N43 | N71 | W09 | W11 | W22 | W34 | W55 | |||||||||
| Filter body | Stainless steel SS304/SS316L, resistant to acid and alkali corrosion, SS316L has better performance | ||||||||||||||||
| Filter element | Stainless steel SS316L | ||||||||||||||||
| Transmission shaft seal | PTFE polytetrafluoroethylene, suitable for various solvents and acidic/alkaline liquids, * * operating temperature 230 ℃ | ||||||||||||||||
| sealing ring | NBR nitrile rubber, suitable for most neutral and oily liquids, * * operating temperature 120 ℃ | ||||||||||||||||
| VITON fluororubber, resistant to acidic and alkaline liquids and most solvents, * * operating temperature 230 ℃ | |||||||||||||||||
| scraper | N-type is a super wear-resistant synthetic material PLS ™、 PTS ™ Scraper, W-shaped wear-resistant stainless steel STS ™ scraper | ||||||||||||||||
| foot | Stainless steel SS304 | ||||||||||||||||
■ Control version:
Shanghai Luda Filtration Company GZ SeriesRing scraping self-cleaning filterFour control system versions are available for selection, each focusing on specific usage requirements. X2 and above versions allow users to flexibly control the operation mode of filters according to their actual needs; Users with higher requirements for control automation and security should consider choosing the X3 enhanced version or X4 flagship version.
| control function | X1 | X2 | X3 | X4 | ||||
| Simplified version | standard edition | Enhanced Edition | Flagship Edition | |||||
| Motor control components | √ | √ | √ | √ | ||||
| Control the motor to drive the cleaning device according to the set cycle and duration | ||||||||
| Discharge valve control component | √ | √ | √ | |||||
| Control the opening cycle and duration of the pneumatic valve's open state | ||||||||
| Differential pressure sensing monitoring component | √ | √ | ||||||
| Parallel self-cleaning according to the set pressure difference; Abnormal pressure difference, switch to bypass or shut down the pump | ||||||||
| LCD human-machine dialogue interface | √ | |||||||
| Intuitively display the operating status of the filter for easy operation | ||||||||
■ Customization options:

Shanghai Luda Filter provides powerful and diverse customization options to further meet filtering requirements and improve the filtering process and operational experience
The jacket insulation can be connected to thermal oil (0.2MPa) or hot water (0.4MPa) to maintain temperature and transport performance
Explosion proof design, safe filtration of flammable and explosive liquids
Food grade surface polishing, easier to clean
Upper cover auxiliary boom design, one person can easily maintain the filter
Modular multi link combination meets the requirements of larger traffic filtering
Mobile filtering car, flexible to filter in multiple positions alternately, saving investment costs
A residual liquid collection bucket with a sieve for easy recovery of valuable liquids or filter residue
■ Filter element selection:
GZ seriesRing scraping self-cleaning filterThere are two types of optional filter elements: filter element, suitable for high-precision filtration, * * up to 30 microns, with a unique filter surface structure, smooth surface, and scraping and cleaning effect * *; Uniform and consistent gaps between filter openings are key components for achieving efficient and stable filtration; Integrated molding, sturdy structure, durable, different from ordinary woven filter screens that are easily damaged. SS316L material has excellent corrosion resistance.
GZ series N-type and W-type filter elements are suitable for low precision filtration, with a small pore size of 1500 microns, capable of intercepting large particles. The surface is punched and formed, and the inner surface is smooth with a roundness of * * and good scraping effect. SS316L material, with excellent corrosion resistance


■ Applicable industries and fluids:
■ Applicable industries: water treatment, electricity, steel, papermaking, mining, petrochemicals, biopharmaceuticals, coatings, inks, oils and fats, food and beverage, metal processing, etc
■ Applicable liquid types: wax, kerosene, monomer, polymer, water, citric acid, fermentation broth, protein, soap, sorbitol, wet end additives, adhesives, inks, pigments, coatings, resins, rubber, ethanol, chocolate, candy, edible oil, high-temperature oil, fruit juice, coolant, diesel, etc
Main filtering function: remove large particles, screen at a fixed value, purify fluids, and protect key equipment
■ Filter type: mechanical scraper type filter, automatic continuous online filter
Fully automatic scraper self-cleaning filter:
The GZ series fully automatic scraper self-cleaning filter developed and produced by the Shanghai brand "Luda Filter" company consists of a filter body and a control part. The filter body includes a housing, filter element, scraper, and drain. The motor is divided into motor drive, cylinder drive, manual operation, etc. The filter housing is made of stainless steel, 304 and 316L, etc.
■ Main components:
The filter element is made of imported 316L wedge-shaped wire mesh, which has strong corrosion resistance and pressure resistance, with a filtration accuracy of 30-1500 microns (500-10 mesh).
The scraper is made of stainless steel frame and PTFE material blade. The PTFE components in contact with the filter element are wear-resistant, acid and alkali resistant, and resistant to various organic solvents, with a temperature of up to 230 ℃.
The sewage department is responsible for discharging the particles intercepted by the filter through the sewage outlet.
Reminder: The above series of products are briefly introduced. Specific selection needs to consider multiple factors comprehensively. Please contact our technical department engineers for professional advice and detailed product information.
Shanghai Luda Filtration Equipment Co., Ltd. provides you with one-stop filtration services for technical support, purifying liquids to improve purity, enhancing final product quality, controlling pollution and environmental protection, protecting key equipment, and optimizing process technology. The main series of products offered by the enterprise; GZ series scraper self-cleaning filter, XZ series multi-core self-cleaning filter, XS series scraper brush self-cleaning filter, high-precision self-cleaning filter, ZS series multi tube candle filter, WK series diatomaceous earth filter, DL series bag filter, LX series core filter, GL series microporous precision filter, BL series plate closed filter, LX series centrifugal solid-liquid separator, BK series plate and frame filter, QC series strong magnetic iron removal filter, filter elements and accessories - filter cartridge, filter bag, filter cloth, filter membrane, filter plate.