Liquid flows up toward down into filter from inlet then through elements,Lastly flows out from outlet,when collecting enough impurity on surface the scraper which is driven by electric machinery and equiped with correctors will close to elements and rotate to strike off the impury and impurity will be collected by the downstream in collection chamber when collected enough the automatic drain valve opens and let the liquid containing high concentration impurity go,liquid after filtration would be recycled or discharged.

Ps: inner-scraper: scraper is inside the filtering element; outer-scraper: scraper is outside the filtering element.
Scraper-strainer Automatic Control Systems

Major Components Of The System

1.  Local control - imdication for scraper motor,blown actuator - differential pressure controller:switches,lights,discon nects;alarms,timers  screens as required.
2. Magnetic force overload breaker protection.
3. PLC-based control system with adjustable timers for scraper - blowdown opera.
4. Differential pressure override protection monitoring.
5. Drain valve driven electric of pneumatic.
6. Pre-wired  tested for easy installation.

Control Options
A Electric power : 120V 230V 380V 400V 460V 480V 575V 1PH  3PH 50  60Hz
B Custom built to integrate into local control center system allowing for control or supervision of other
C Several options for local/remote indication,switches,timers, touch screen controls
D Remote supervision dry contacts,PLC based,4-20mA,audible alarms,DH-485,digital/analog


Common filter media

Wax Kerosene Monomer Polymer Water treatment Vitamin Citric acid Fermentation broth Chitosan cellulose Cosmetics Penicillin Pills Protein

Shampoo Silicone solution Soap Pear alcohol Steroid Corn syrup Wet end additives Adhesive Chemical agent Pigment Ink Lubricant Paint

Rubber Ethanol Chocolate Candy Dairy oil Edible oil High temperature oil Juice Processing liquid Coolant Catalyst Diesel Resin Agarose (Gel)