Series AB 700/950

Automatic modular sand heads

AB7001200-PNG3
crepi
colect
medida boca4

General features

Modular head manual sand filter

  • Filtration efficiency: Maximum water purification.
  • Cleaning mode: Automatic.
  • Wide range: Diameters from 700 – 800 – 950 mm
  • Lower register: Large (273 mm) for easy access to the filter interior.
  • Collector/distributor arm: Carbon steel
  • Easy maintenance: Backwash cleaning.
  • Construction materials: High-quality with anti-corrosion treatment for greater durability.
  • Connections: Various connection types according to international standards
  • Safety filter: Mesh/disc filter at the filtered water collector outlet.

Technical sheet

SYSTEM

Filtration produced by the retention of dirt particles in the silica sand layer created in the filter element that runs along the filter bed, throughout its entire depth, ideal for waters with a high load of solids, algae, and other organic matter.

EQUIPMENT

All our automatic heads are equipped with manifolds, pressure gauges, suction cups, hydraulic valves, seals and hardware, as well as a safety filter at the filtered water outlet to protect the system.

CONSTRUCTION MATERIALS

  • Body: Carbon steel.
  • Collectors: Carbon steel or polyethylene.
  • Filter element: Various types of silica sand, activated carbon, anthracite, basalt, etc.
  • Filtration system: Polypropylene collector arms/squeegees.
  • Screws: Zinc-plated.
  • Gaskets: 60° Shore synthetic nitrile rubber.
  • Cleaning system: Automatic backwashing.

SURFACE TREATMENT OF STEEL

The carbon steel elements receive internal and external treatment with a pre-shot blasting of the surface grade SA 2.5, then are pre-treated with phosphate before undergoing electrostatic painting with several layers of epoxy polyester powder paint.

FILTERING ELEMENT

Silica sand, activated carbon, anthracite, basalt, etc. in different granules according to filtration needs.

CLEANING

Cleaning is done in the opposite direction to filtration, opening the drain valve and flushing out all the accumulated dirt. The system is automatic, using cleaning valves. Washing is completely uniform thanks to the collector arms or strainers that cover the entire surface of the filter sand.

Technical specifications

Functions with manifolds in polyethylene PEAD, galvanized steel or steel covered with exopy polyester painting.

The flow rates depends on the water quality. This system functions with manifolds, valves, manometres, suction cups, gaskets and silica sand