Swimming Pool Filter `ESPA FKB 450 6 LT – FKB 550 6 LT

Sand filters of the FKB series are designed for water purification in swimming pools. A backfill made of special sifted quartz sand is used as a filtering element.

ADVANTAGES / FEATURES
All filter elements are made of high-strength polyethylene.
The filter housing is one-piece with lugs for installation on a horizontal surface or on a special base.
For the convenience of the user, modifications of the filter with a top or side arrangement of a six-position valve are provided.
A wide range of filters allows them to be used in various pools – from prefabricated minimum volume to large public.
A special drain valve is installed in the filter, which allows you to drain water from the filter for maintenance or conservation without loss of sand.
Filters with a side-mounted six-position valve are equipped with a transparent top cover for easy control of the state of the backfill; in filters with an upper-valve arrangement, a special transparent insert located directly on the six-position valve is provided for the same purposes.
The six-position valve has three threaded outlets for connection – inlet from the pump, outlet of filtered water and drainage of water into the sewer.
Using the valve, one of the operating modes is selected: filtration, backwash, sand compaction, circulation, drain, closed.
There is also a “winter” position of the valve, which ensures the safety of the sealing elements in the cold season.
Additionally, it is possible to order a platform for compact installation of the filter and pump on a common base.

POOL VOLUME x NUMBER OF FILTRATIONS PER DAY = VOLUME
RECIRCULATED WATER
10m³ x 4 = 40m³
RECIRCULATED WATER VOLUME: PUMP CAPACITY
= OPERATING HOURS OF THE UNIT
40m³: 3.5m³ / hour = 11.4 hours.