Differential Pressure Controlled Brush Self-Cleaning Filter

Product Introduction

The differential pressure controlled brush self-cleaning filter is an advanced filtration system designed to remove impurities from water without manual intervention. It utilizes a differential pressure control mechanism to trigger automatic cleaning, ensuring continuous operation and stable water flow. The filter is equipped with a motor-driven brush system that effectively removes debris from the filter screen, maintaining optimal filtration efficiency. This system is widely used in various water treatment applications to enhance equipment longevity and operational reliability.

Working Principle

Water enters the filter housing through the inlet and passes through the filter screen, where suspended particles and impurities are intercepted. Clean water then exits through the outlet. Over time, as debris accumulates, the differential pressure between the inlet and outlet increases. When the pressure difference reaches a preset threshold, the control system activates the cleaning process.

During cleaning, the motor drives the brushes to rotate along the inner surface of the filter screen, removing trapped particles. Simultaneously, the control valve opens to discharge collected impurities through the drain outlet. The entire cleaning process occurs without interrupting the water supply, ensuring continuous filtration efficiency.

Material Composition

The differential pressure controlled brush self-cleaning filter is constructed with high-quality materials for durability and corrosion resistance:

• Filter Housing: Stainless Steel (SS304/SS316L) or Carbon Steel with anti-corrosion coating

• Filter Screen: Stainless Steel Wedge Wire or Perforated Mesh

• Motor & Reducer: 0.37KW standard configuration

• Control Box: Delixi Electric Control System

• Cleaning Brushes: High-strength Nylon or Stainless Steel

• Control Valve: Electric Ball Valve for automated drainage

• Sensors & Controllers: Time Controller and Pressure Switch for cleaning cycle regulation

Applications

The differential pressure controlled brush self-cleaning filter is widely utilized in industries requiring reliable water filtration solutions. Common applications include:

• Industrial Cooling Water: Preventing clogging in heat exchangers and cooling towers

• Municipal Water Treatment: Enhancing water quality for public utilities

• Agricultural Irrigation: Protecting irrigation systems from sediment and debris

• Raw Water Pretreatment: Ensuring cleaner water for further treatment processes

• Steel & Power Plants: Filtering recirculating water to improve system efficiency

• Food & Beverage Industry: Maintaining high water quality for production processes

Key Selection Parameters

To select the right differential pressure controlled brush self-cleaning filter, consider the following factors:

1. Flow Rate: Ensure the filter capacity matches system requirements.

2. Filtration Precision: Choose between 50-5000 microns based on impurity levels.

3. Operating Pressure: Confirm compatibility with system pressure conditions.

4. Filter Housing Material: Select from stainless steel or coated carbon steel based on environmental factors.

5. Control Mode: Choose from differential pressure, time-based, or manual control.

6. Motor Power: Verify motor specifications (standard 0.37KW or customized options).

7. Connection Type: Ensure proper inlet/outlet flange or threaded connections.

8. Cleaning Mechanism: Determine whether nylon or stainless steel brushes are preferred.

FAQ

1. How does the differential pressure controlled brush self-cleaning filter work?
        It uses a motor-driven brush system to remove debris from the filter screen when the pressure difference reaches a preset value.

2. What control modes are available?
        The filter supports three control modes: differential pressure, time-based, and manual control.

3. Does the cleaning process interrupt water flow?
        No, the filter cleans itself while maintaining continuous water supply.

4. What materials are used for the filter housing?
        The housing is available in SS304, SS316L, or carbon steel with an anti-corrosion coating.

5. Can the filter handle high sediment loads?
        Yes, the system efficiently removes particles and is suitable for turbid water conditions.

6. What is the standard motor power for the filter?
        The standard configuration includes a 0.37KW motor, but custom options are available.

7. Is the filter suitable for seawater applications?
        Yes, when made with SS316L, it is resistant to seawater corrosion.

8. What are the maintenance requirements?
        The filter requires minimal maintenance, mainly periodic inspections to ensure optimal performance.