Automatic Hydraulic Self Cleaning Screen Filter

Automatic hydraulic filter Working principle
Filtering state: Liquid from the efficient backwash filter inlet injection, from up to down flow, through the filter element surface to flow outlet; When the filter element surface collect to a certain impurities, fixed time or set pressure tp started cleaning procedures.
Cleaning state: cylinder drive wash plate to straight action, this part of the impurities with the descending liquid through washing dish to fall into the collection chamber, to repeat washing several times to clean the filter element.
The most important part of the filters, that provides quite simple and reliable cleaning process, is a disk which is installed on pneumatic cylinder. When a disk, placed on pneumatic cylinder's end, passes between water and filter basket, filter basket is cleaned with this movement of the disk. Flow speed of the water increases on the points around the disk and static pressure decreases pursuant to Bernoulli principle
Low static pressure creates vacuum effect on edge points of the disk and contaminants are discharged from the drainage line by being cleaned from the filter basket.

Automatic hydraulic filter Technical Features and Benefits
1,Linear reciprocating stripped, directly stripped the impurities off the surface of the filter element.structure simple, easy open to clean and maintain
2,Online connection filtering, automatic dynamic line, end of the heavy filter element replacement and cleaning.
3,No need produce one-off abandoned filtration consumables, saving the cost of consumables and environmental treatment cost minimal filter pressure drop, flow stability, saving energy pipeline, which will help the process of continuous and stable.
4,Closed filter, to prevent leakage of hazardous materials which is conducive to safe production.
5,High concentration of emission waste impurity and recyclable , to avoid high-value materials losses
6,Variety of module combination and powerful automation modes, to meet the requirements of various filtration applications
7,Selection of the world-renowned high-quality components, high reliability, minimal maintenance, low cost fixed line

Automatic hydraulic filter Operation Steps
Normal Operation: Water comes in through filter inlet and flows into filter basket as 90o for big particles to be decomposed. Clean water is discharged from the outlet. Washing valve is closed in this status and motionless out of the piston filter basket. (Figure 1.1)

                Figure 1.1                                  Figure 1.2                                   Figure 1.3

Washing step-1: Filter is self-cleanable with the washing of the basket. Washing can be carried out manually, with time or pressure change control method. Washing valve is pneumatically turned on initially and wide parts, which hold on to the filter basket, are cleaned. In the meanwhile, outlet of the filtered water is not divided. (Figure 1.2)
Washing step-2: Washing valve is on in this step. It moves for two times through filter basket by pneumatic movements with piston disk. In the meanwhile, the water passes in a way preventing a friction loss in disk and basket. Flow speed increases around the disk and static pressure decreases pursuant to Bernoulli principle. Low static pressure, occurring around the disk, helps basket to be cleaned and released particles to be discharged. Clean water outlet is on in the meanwhile. After washing process is completed, washing valve is turned off and normal operation is continued. (Figure 1.3)

The video of working principle: https://www.youtube.com/watch?v=VeFlf28AEo8

Automatic hydraulic filter Rinsing Pressure

Automatic hydraulic filter Main Specifications
For the liquid: water and viscous liquids (<30000cps),

impurity <1000ppm
Filtration (microns):100-3000
Standard design pressure rating: 1.0Mpa, higher pressures can be customized
Cleaning pressure: 0.05Mpa

Drive: Cylinder

Automatic hydraulic filter Advantages
1,Easy maintenance and high operation reliability thanks to a simple and smart cleaning
2,system with a part, moving a little bit.
3,Stable and low pressure loss both in clean and dirty conditions.
4,Need for low washing pressure to 0.3bar.
5,Easy installation: Bernoulli filters can be carried by pipe installation, on which they are installed. Filter can be installed horizontally and vertically.
6,PVC or glass fibre reinforces polyester body material provides high corrosion resistance particularly in sea water applications. Stainless steel bodied filters can be used in fresh water applications

Automatic hydraulic filter Applications
1,The domestic water supply, water supply and pre-filtering for industrial water supply;
2,Steel, petroleum, chemical, paper, automotive, food, metallurgy and other industries beginning circulating water filtration;
3,Fist stage of circulating cooling water filtration;
4,The water reuse, waste water treatment filter;
5,Central air conditioning, boiler return early filter;
6,Municipal, green spraying, irrigation, agricultural irrigation, drip irrigation water filter early.

Automatic hydraulic filter Install drawing

Circulating water bernoulli filter 
Installation Tips
Before unpacking the filter:
∗ Do not lift the filter by holding from pneumatic cylinder
∗ Lift by holding from flanges or by a strap as shown on the figure.

Mechanical Installation
Cover:Cover and body can be installed in an opposite way of the shipment due to the requirement on transfer opening. Initially; it is recommended to install the body without cover. Before being installed , check if loose matters or connection lines are available in the filter.
Gaskets: Gaskets shall be carefully tightened for PVC and GRP flanges. GRP flanges generally require pre-tightening
Position:Filter can be installed in any way as seen on Figure 1-b. Nevertheless; filter body, connections and differential pressure switch shall be horizontal to prevent air accumulation and contamination in air tube. Filter shall be installed in a way it would possess positive pressure downwards to the pump, as shown on Figure 1-c.