Episode 1 The Components of Self Cleaning Filter

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Product Description

Basic Specifications
Motive Force
Electric power
Style
Vertical
Performance
Efficient Filtration
Certification
CE, ISO
Pressure
2-10bar
Flow Rate
6~4000m3/H
Material
Carbon Steel/SS304/SS316
Precision
50~2000microns
Trademark
CDFS
HS Code
8421219990
Product Structure
Electric motor
Automatic drain valve
Screen
Cleaning brush
Water inlet
Water outlet
Product Principle

The water flows through the screen and the particles are retained on the inside of the screen of the filter element. The filtered water then flows out through the outlet.

When the particles accumulated to a certain number and the pressure differential increases to the pre-determined level, the flushing cycle starts.

It include two steps: First, the automatic drain valve opens on the drainage outlet. Then, electronic motor drives the cleaning brushes which are inside the screen, the solids are expelled through the drain valve.

Filters continue to supply filtered water even during the flushing cycle. The whole working system is controlled by a smart box which has several control modes: pressure differential, time, manual and PLC.

Technical Parameters
A single maximum flow capacity is up to 4000m3 / h
Wide filtration range: screens from 4000 to 20 microns
Working pressure (min) ≥0.18Mpa / (max) ≤1.6MPa
Working temperature ≤65ºC
Power supply: 380 v / 50 Hz
Cleaning method: brush type
Adjustable cleaning time: 10-200 seconds
Filter Material
Shell: Carbon steel, 304 stainless steel, 316L stainless steel
Screen: 304 stainless steel, 316L stainless steel
Brush holder: 304 stainless steel, 316L stainless steel
Drain valve: Cast iron, copper, stainless steel, PVC, nylon
Seal ring: EPDM rubber
Cleaning brush: Stainless steel, nylon
Technical Charts & Specifications
ModelWater In/OutA (mm)B (mm)C (mm)D (mm)PowerMax FlowWeight
DLD-FL-50502402507005600.121950
DLD-FL-1001002404009505900.1880105
DLD-FL-20020033059014106800.25320235
DLD-FL-30030041579018508300.37710420
DLD-FL-45045051079019809500.371600860
Packing & Shipping
Manufacturing Capabilities

Specialized in manufacturing water filter systems since 2002. Providing efficient, stable solutions for irrigation and industrial water treatment. Products meet ISO9001 and CE standards.

Frequently Asked Questions
How does the automatic cleaning cycle work?
The system monitors pressure differential. When it reaches a preset level, the drain valve opens and the internal brushes clean the screen without interrupting the water flow.
Is the filtration flow interrupted during cleaning?
No, one of the primary advantages of this system is that it continues to supply filtered water even during the flushing cycle.
What materials are available for harsh environments?
We offer shells and components in 304 and 316L stainless steel, which provide excellent corrosion resistance for industrial applications.
What control modes are supported?
The smart control box supports four modes: pressure differential, time-based, manual control, and PLC integration.
Can the working pressure be customized?
Yes, while standard working pressure is up to 1.6MPa, we can provide customized solutions to meet specific high-pressure requirements.
What industries typically use these filters?
These filters are widely used in construction, steel, power plants, petrochemical, metallurgy, pharmaceutical, and municipal water treatment.

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