Hydraulic Self Cleaning Filter Backwashing Water Treatment Filtration System

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Product Description

📋Basic Information
Model NO.
DLHF
Motive Force
Pressure
Style
Horizontal
Performance
Efficient Filtration
Certification
CE, ISO
Pressure
2-10bar
Flow Rate
50/100/200/500/2000m3/H
Material
Carbon Steel/Stainless Steel/SS316
Precision
50/120/200/1500microns
Mesh
SS316
Drain Valve
Nylon
Power
220V/415V/110V
Frequency
50Hz/60Hz
Control Way
Pressure Differential/Time/Manual
Max Flow
4000m3/H
Transport Package
Wooden Case
Specification
1~5CUBE
HS Code
8421219990
Production Capacity
200 Sets/Month
🚀Application Areas

Screen filters for liquid fertilizers

  • Commercial - Golf course and sporting field irrigation systems.
  • Industrial - Pre-preteatment of UF/RO and waste water recycling.
  • Irrigation - Primary filtration for the prevention of blockages in irrigation system
  • HVAC - cooling tower side filtration and full system
  • Metal Processing Plants - Filtration for water cooling and spray nozzles.
  • Mining - Cleaning of process and waste water.
⚙️Product Structure
Product Structure
  1. Suction nozzle
  2. Automatic drain valve
  3. Hydraulic piston
  4. Pressure difference indicator
  5. Screen
  6. Water outlet
  7. Water inlet
💡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.

Self-cleaning mode can be started by pressing, timing or manual three ways, following the principle of pressure difference.

When the internal and external pressure difference reaches the set value, the self-cleaning mode starts. Drain pipe hydraulic valve open, sucking the scanner to produce negative pressure suction nozzle inside, absorbing impurities, at the same time sucking scanner in under hydraulic motor along the inside surface mesh do reciprocating screw, movement, no cleaning blind area, impurities by the discharge outlet.

The cleaning time of self-cleaning filter is set by the controller in advance, the drain valve is closed after cleaning, and little water loss in cleaning process.

📊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
  • Working pressure (max) ≤ 1.6MPa (customized available)
  • Working temperature ≤ 65ºC
  • Power supply: 220V / 50Hz (Customized available)
  • Cleaning method: suction
  • Adjustable cleaning time: 10-200 seconds
🛠️Filter Material
Shell
Carbon steel, 304 stainless steel, 316L stainless steel
Screen
304 stainless steel, 316L stainless steel
Drain Valve
Cast iron, copper, stainless steel, PVC, nylon
Controller
PVC, aluminum
Seal Ring
EPDM rubber
Suction
Stainless steel, PVC
📅DLAF800 Series Specifications
Specification Chart
Model Water In/Outlet (inch) D1 (mm) L (mm) L1 (mm) L2 (mm) L3 (mm) H (mm) Flow (m³/h)
DLAF803LOPR327345011411575207555550
DLAF804LOPR4273900150519352735555100
DLAF806LOPR6325900150519352735625150
DLAF806XLP6273900184122753471555160
DLAF808PR8325900168521152915625250
DLAF808LOPR8325900208525153715625300
DLAF810PR10426900188523153515726350
DLAF810LOPR10377900208525153715677400
DLAF810XLP104261100272531554755736450
DLAF812PR124261100272531554755736600
DLAF814PR1448012702725315547558101000
DLAF816PR1648012702725315547558101200
DLAF816XLP16630127027253155475510101500
📦Packing & Shipping
Packing and Shipping
🏢Application Cases
Application Case
Manufacturing
Frequently Asked Questions
Q: What is the main application of the DLHF screen filter? A: It is widely used in irrigation systems for golf courses, pre-treatment for UF/RO industrial water, cooling tower filtration in HVAC, and wastewater recycling in mining or metal processing.
Q: How does the self-cleaning mechanism work? A: It operates on a pressure differential principle. When the set pressure difference is reached, a drain valve opens and a suction scanner moves across the screen to remove impurities without cleaning blind areas.
Q: Can the cleaning time be adjusted? A: Yes, the cleaning cycle is adjustable via the controller, typically ranging from 10 to 200 seconds.
Q: What materials are available for the filter housing? A: The shell can be manufactured from carbon steel, 304 stainless steel, or 316L stainless steel depending on the application requirements.
Q: What is the maximum flow capacity available? A: A single unit can handle a maximum flow capacity of up to 4000 m³/h.
Q: What power options are supported for the control system? A: Standard power is 220V/50Hz, but 415V or 110V options at 50Hz/60Hz are available through customization.

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