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    Qingdao Lehler Filtering Technology Co.,Ltd.

    Contact: Mr. Mark

    H/P: +86-15864745888

    Tel: +86-532-87117999

    Fax: +86-532-87151555

    E-mail: info@lehler.com

    Address: No.358, Feiyu Road, Huangdao District, Qingdao City, Shandong Province, China.

    Zip code: 266400



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Current location：Home > Products > Auto Self-cleaning Filter > Backwash filter
Back wash cleaning filter
Detailed introduction
Specification: 
■ Model: LFF-D500
■ Filtration surface area: 3.8㎡
■ Filter element: Wedge wire screen (v-slot screen)
■ Filtration rate: minimum 20microns
■ Housing material: SS304/ SS316L/ 2205/ 2507…
■ Filter element material: SS304/ SS316L/ 2205/ 2507…
■ Inlet: DN500
■ Outlet: DN500
■ Drain outlet: DN50
■ Design pressure: 1.0 MPA
■ Design temperature: 0-200 ℃
■ Housing material: SS304
■ Filter element material: SS304 
■ Reducer gear: 5.8r/min, SITI brand
■ Motor: 380v, 50hz, SITI brand
■ Power control box: Touching screen power control box
■ Blowdown valve: Pneumatic ball valve
■ Filter surface treatment: Electric polish/ Sand-blasting/ Painting
Applicable industry:
Food & Beverage/ Fine Chemical/ Petrochemical/ Pharmaceutical/ Cosmetic/ Mineral/ Pulp&Paper/ Waste water Treatment
Working principle:
Filtration process:
The raw liquid enters the filter through the inlet. During the filtration process, the impurity is accumulated on the stainless steel wedge wire filter element, and the inner impurity is gradually accumulated.
Backwashing process:
When pressure difference or time is reached setted point, the self-cleaning action starts work, the reverse washing rotating arm driven by the deceleration motor is aligned with a filter element, the upper end of the filter element is sealed, the lower end is connected to the cleaning suction nozzle, the back washing valve is opened, the filter element is connected with the blowdown pipe, and the pressure difference between the outer side of the filter element and the blowdown port drives the filtrate to reverse wash the filter cake on the inner surface of the filter element and discharge it into the blowdown pipe. After the backwashing of one filter element, close the backwashing valve, and align the cleaning rotating arm with the next filter element for backwashing. After all filter elements are backwashed one by one, the whole process is completed.
Positioning function:
The drive shaft of the decelerating motor is equipped with a positioning plate and a cleaning rota
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Contacts：Mr. Mark

Telephone：15864745888

Address： No.358, Feiyu Road,Huangdao District, Qingdao City,Shandong Province, China.

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CopyRight © 2020. Qingdao Lehler Filtration Technology Co., Ltd All Rights Reserved. 魯ICP備19047118號-1
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Auto Self-cleaning Filter

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Back wash cleaning filter
Detailed introduction
Specification: 
■ Model: LFF-D500
■ Filtration surface area: 3.8㎡
■ Filter element: Wedge wire screen (v-slot screen)
■ Filtration rate: minimum 20microns
■ Housing material: SS304/ SS316L/ 2205/ 2507…
■ Filter element material: SS304/ SS316L/ 2205/ 2507…
■ Inlet: DN500
■ Outlet: DN500
■ Drain outlet: DN50
■ Design pressure: 1.0 MPA
■ Design temperature: 0-200 ℃
■ Housing material: SS304
■ Filter element material: SS304 
■ Reducer gear: 5.8r/min, SITI brand
■ Motor: 380v, 50hz, SITI brand
■ Power control box: Touching screen power control box
■ Blowdown valve: Pneumatic ball valve
■ Filter surface treatment: Electric polish/ Sand-blasting/ Painting
Applicable industry:
Food & Beverage/ Fine Chemical/ Petrochemical/ Pharmaceutical/ Cosmetic/ Mineral/ Pulp&Paper/ Waste water Treatment
Working principle:
Filtration process:
The raw liquid enters the filter through the inlet. During the filtration process, the impurity is accumulated on the stainless steel wedge wire filter element, and the inner impurity is gradually accumulated.
Backwashing process:
When pressure difference or time is reached setted point, the self-cleaning action starts work, the reverse washing rotating arm driven by the deceleration motor is aligned with a filter element, the upper end of the filter element is sealed, the lower end is connected to the cleaning suction nozzle, the back washing valve is opened, the filter element is connected with the blowdown pipe, and the pressure difference between the outer side of the filter element and the blowdown port drives the filtrate to reverse wash the filter cake on the inner surface of the filter element and discharge it into the blowdown pipe. After the backwashing of one filter element, close the backwashing valve, and align the cleaning rotating arm with the next filter element for backwashing. After all filter elements are backwashed one by one, the whole process is completed.
Positioning function:
The drive shaft of the decelerating motor is equipped with a positioning plate and a cleaning rota

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CopyRight © 2020. Qingdao Lehler Filtration Technology Co., Ltd All Rights Reserved. 魯ICP備19047118號-1