
The screen changer for recycling processes
Backflush screen changers from Maag are based on a proven double-piston design that operates without additional seals and is equipped with four screen cavities. The screen changer is used most commonly in continuous processes involving highly contaminated polymer melts that require self-cleaning of the screens.
It exhibits an ideal flow geometry. This makes the largest possible filter area available, facilitating the effective removal of contamination. What's more, the screen's back spill plates are designed so that 95 percent of the screen surface is in use.
Benefits
- Multiple screen usage
- Simple operation and uncomplicated control
- High operational reliability
- Short material residence time
- Leak-free mode of operation
- Low pressure consumption
- Flow channel geometry without any dead spots
Application limits
Temperature [°C]: | up to 350 |
Operating pressure [bar]: | 300 |
Differential pressure [bar]: | to 100 |
Screen diameter [mm]: | 30 to 300 |
Filtration area [cm2]: |

