For fine filtration down to 3 microns
Unique filtration medium constructed of fine threads wound in layers around a grooved plastic spool cassette
Combines the advantages of surface and depth filtration
Compact design
Worldwide patents
Short payback

Some typical applications

  • drinking water removes cryptosporidium
  • effluent treatment
  • fine filtration for re-circulating water systems
  • reverse osmosis and membrane protection
  • side stream filtration for cooling towers
  • off-shore injection water
  • swimming pool filtration

How the thread filter MTG works

The MTG Thread filters remove dirt particles as water flows through the multi-layered thread cassettes (5) to the collecting pipes (3) and out of the filter via outlets (4). Dirt particles accumulate on and in between the thread layers cause a pressure differential, and at a preset pressure differential value or time interval, the control unit (6) activates the self-cleaning cycle :

The inlet and outlet valves (7,8) close, and the drain valve (9) and flushing valves (10) open.
The booster pump (11) delivers the pressurized water to the shuttle pipe (12). This pipe carries water to the nozzles (13) that spray the surface of the cassette. The spray, referred to as the flushing jet stream, penetrates the thread layers and hits the plastic support (14). The returning stream (referred to as the reject stream) together with the dirt from the cassette flows through the filter housing and out of the filter via the drain valve (9). The combined flushing jet and reject streams ensure 100% cleaning.
The piston assembly (15) propels the linear movement of the nozzles. When the linear movement is completed, the turn mechanism (16) turns the cassette to a new index position and once the cassettes have completed a full turn, the filter is clean.
When the cassettes are clean, the flushing valve (10) and the drain (9) close. The inlet and outlet valves (7,8) open allowing water to flow through the filter and the booster pump (11) stops operating.


Specifications MTG THREAD FILTER
Flow rate (per unit) 300 m³/h max.
Thread cassette 3 µ - 10 µ - 20 µ
Working pressure 0,2 to 10 barg
Pressure loss max. flow 0,2 barg
Flush cycle duration ± 10 minutes
Flush supply 20 m³/h at 8,5 to 9 bar
Flush logic delta-P or delta-T
Self cleaning mechanism High pressure spray nozzles
Max. working temperature 45°C
Media surface area 28 m²
Liquid velocity 10,70 m/h max.
Interchangeable cassette package Can be extracted without disconnecting the filter from the pipeline
Control Electronic with hydraulic or electronic with hydraulic and pneumatic
Inlet/outlet size 4" x 4" inlet; 4" x 4" outlet
Inlet/outlet connection standards DIN*
Installation type On-line
Installation configuration Stand-alone or in a group
Wetted seals Natural and nitrile rubber
  Empty Full
Weight 1800 kg 3000 kg
Weight with accessoiries 2300 kg 3500 kg
* Note : 4" to 8" manifolds are available upon request according to ASA 150, DIN, PN10 connection standards

Filtermat filters

Filtermat filters
Telephone +32-3-711.03.57 or +32-3-710.65.50
Fax +32-3-711.03.58 or +32-3-710.65.58
Address Winninglaan 17, B-9140 Temse (Belgium)