Sunday, October 26, 2014
Model P.C.T. Series
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The Pre-Coat filter is well know for its superior performance as a filter system.  In the case of the Atlas Filter the water is pumped in at the bottom of the tank, through a non return flap valve, and flows, from the outside, through a vertically placed polyester cloth filter bag coated with Pre-Coat Filter. The filtered water is then pumped out through the top of the tank back into the pool. The filter is backwashed by reversing the flow through the filter tubes. 

The system is easy to operate and maintain, saves water and energy and ensures superior water clarity. 

A large filter area is achieved by vertically placed filter bags, supported on special configuration cores.  The result is a compact plant size with the ability to cope with very large bathing loads.  This makes the product a cost-effective solution for filtering large public swimming pools. 

The Atlas filtration system can be used for both fresh and salt water filtration.

Tanks

The tanks are of a solid steel plate, stainless steel or composite fiber glass construction.  All seams are welded internally and externally by qualified coded welders.  The tanks are complete in every respect with necessary pressure gauges, air release valves, plus all necessary fittings.

Complete consideration is given to corrosion protection in the form of sand blasting, galvanizing and 3 coats of Copon Epoxy Bitumen to 250 microns.  Then internal filter elements are constructed of patented injection moulded ABS cored covered by Polyester/Polypropylene bags which are heat set.  The tubes are held down by a pressure planet and inert rubber "O" rings.  The spacings of the elements are 37mm apart, thus avoiding any by bridging during the filtration cycle.  The internal design conforms strictly to the N.S.F codes laid down for this particular type of filtration.

The tanks are manufactured from solid steel plates with the wall thickness varying between 8mm and 16mm depending upon the model.  Likewise the manifold varies in thickness from 12mm to 30mm.  All seams are welded internally and externally by qualified coded welders.  The tanks are complete in every respect with pressure gauges, air release valves and butterfly valves, plus all necessary fittings. 

Testing pressure is 7.0 bars for a working pressure of 2.0 bars.

Filter Tubes

Each tube is an elongated body, having 6 longitudinal ribs extending radially from a central hub.  Filtration tubes are completely non-corrosive.

Method Of Backwash

Method of backwash is by means of reverse flow butterfly valves which are fitted to each filter.  The water inlet at the bottom of the tank and the clear water outlet at the top of the tank, plus the vertical rube element design give complete disposal for the filter aid and solids under reverse flow conditions.

 Regenerative Cycle

When the flow is stopped , the filter aid settles the bottom of the tank and is then redistributed in a different porosity when the filtration cycle is restarted.  A patented diffusion inlet manifold ensures turbulence and complete redistribution of the filter media.

Flow Rate

The flow rate is calculated at 1,0 liters to 1,25 liters per second per m² of filter area of filter area.  The amount of effective filter area per tank in different models is 20m2, 30m2, and 40m2.

Filtration Mode

 
   
Advantages of Atlas Filtration Systems
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  1. Ease of operation
  2. Excessive long runs between backwashing
  3. Superior water clarity and sparkle
  4. Can be used for both fresh and salt water filtration
  5. Lower capital costs
  6. Ensure consistent filter efficiency
  7. Ability to cope with large bathing loads
  8. Large saving of backwash water
  9. Saving of water and energy
  10. Regenerative cycle system
  11. Non critical flocculation required
  12. Saving in maintenance costs
  13. Flexibility of plant operation
  14. Optimal performance
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