INDUSTRIAL SCREEN



UNDERDRAIN SYSTEM         
  

  ADVANTAGES
 * Direct retention of fine filter media eliminating layers of  support gravels and thereby reducing the
  bed height and head loss. * Slot opening (0.15mm to 3.0mm) to suit various filter media sizes
* Several layers of filter media may be used without risk of turbulence.
* Offers higher open area to optimize filtration efficiency * Almost covers the entire filter area
* Available in stainless still material hence Non Corrosive  * Low head loss
 
       DIFFERENCE BETWEEN
       CONVENTIONAL & JOHNSON Vee WIRE UNDERDRAIN SYSTEM

 
* Requires no. of layers of support gravels.
  Turbulence occurring during back washing
  generates serious damages.
* The weakness of the equipment involve a
  cost effective maintenance
* Direct retention of the filter media,
  eliminating layers of support gravels and
  there by No chance for the mixing of the
  media during the backwash.
 
* SAVINGS
* Reduced consumption of treated water for backwashing * No maintenance, repair or shutdown
* Savings in filter bed height and volume * Savings in installation costs because the Johnson
* Underdrain System is quick and easy to install
* No support gravels required, hence savings in cost for gravel.
 

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