Obstruction of sprinklers and drippers is one of most significant problems encountered in irrigation systems. Most common reason of the obstruction is about minerals, organic and inorganic materials found in the water resource. Process of filtering water in the irrigation system is referred as filtration. Filtration is the best protection method against avoiding entrance/obstruction of dripper, sprinkler, hydrant and other similar equipments used in the irrigation system by sediments. Because, process of finding the obstructed dripper, to clean or replace the dripper is very costly and laborious. Therefore, filtration is most significant control unit of an irrigation system.

 

 Download General Product Catalogue

 Download General Filtration Systems Catalogue

 

Filter Selection Table

Water Source Type of Filter to be Used
Network Water Screen Filter
Hydrocyclone (Sand Separators)
Disc Filter
Well Water Disc Filter
Hydrocyclone (Sand Separators)
Screen Filter
River or Stream Water Disc Filter
Gravel Filter and Disc Filter System
Gravel Filter and Screen Filter System
Gravel Filter and Hydrocyclone System
Lake or Pool Water Disc Filter
Gravel Filter and Disc Filter System
Gravel Filter and Screen Filter System
Gravel Filter and Hydrocyclone System
Spring or Artesian Well Water Screen Filter
Hydrocyclone(Sand Separators)
Disc Filter
Water Supply Containing Organic Material Disc Filter
Gravel Filter and Disc Filter System
Gravel Filter and Hydrocyclone System
Water Supply Containing Sand Screen Filter
Hydrocyclone (Sand Separators)
Disc Filter

 

Mesh and disc numbers based on particulate matter dimension classification

Particle Class Particle Size (mm) Screen-Disc Number (mesh) Screen-Disc Number (micron)
Very Rough Sand 1.0 – 2.0 10 – 18 1500 – 850
Rough Sand 0.50 – 1.0 18 – 35 850 – 420
Intermediary Sand 0.25 – 0.50 35 – 60 420 – 250
Fine Sand 0.10 – 0.25 60 – 160 250 – 100
Very Fine Sand 0.05 – 0.10 160 – 270 100 – 50
Silt 0.002 – 0.05 270 – 400 50 – 30
Clay < 0.002 > 400 > 30

 

Filtration Degree Conversion Table

Micron 25 30 40 50 80 100 130 150 200 400 800 1500 3000
mm 0.025 0.03 0.04 0.05 0.08 0.1 0.13 0.15 0.2 0.4 0.8 1.5 3.0
Mesh 650 550 400 300 200 150 120 100 80 40 20 10 5