Sand Multigrade Filter applications:
 
Sand Filters: Removal of turbidity and suspended solids from lightly contaminated water sources such as deep wells and municipality water supplies. Used frequently upstream of reverse osmosis and demineralization systems.
 
Dual Media or Sand / Anthracite Filters: emoval of turbidity and suspended solids from heavily contaminated water sources such as gray water and domestic sewage tertiary treatment. Also used as a roughening-filters a head of two stage filtration systems.
 
Activated Carbon Filters: Removal of free chlorine upstream of RO or Softening plants and removing from smell and odor from lightly contaminated water supplies.

Sand Multigrade Filter advantages:

State of the art fabrication provides added strength under pressure and long system life

Head construction for durability and safety

Stainless steel wedgewire underdrain

Ensures structural integrity in the harshest conditions

Hydraulically balanced to increase effectiveness of backwash while reducing flush frequency and waste of water

High strength stainless steel wedgewire will withstand a collapse pressure in excess of 600 psi

Standard carbon steel products use 6-12mm thick material

Backwash automatically initiated by elapsed time or pressure differential

Easy-entry lid closure with weld tabs for operator safety

Available in welded carbon steel or stainless steel

Epoxy coating on interior surfaces

Made in China

YLD project:




Sand Multigrade Filter Working principle:


For the by-pass filtration, the filter is installed in the main circulating pipeline to filter all the circulating water,
 but apart of the circulating water led from the main circulating pipeline is filtered, which is a repeated 
circulatininterception step by step to filter the impurities within the system and finally remove the impurities
 by thenecessary backwash out of the system. Installing a by-pass filter in the circulating water system can 
prevent the terminal pipe of device from sludge blocking and remove the impurities in the system with 
chemical dosing.
By-pass filtration is used to reduce the turbidity of the water circulation system, exactly, to reduce slime 
and 
prevent its deposition in the heat exchanger, so that the effect of agent will be better.
 
The size of each filter, the number of filters required, and the type of filter media used depend upon:

1. What is the capacity(gpm or m3/h)do you require?


2. What is the raw water?


3. What is the power supply in your country?

---Is it 220-240V,50/60Hz,1 phase or other standard?


4. What will the be treated warter used for?