The EVL Double-piston continuous screen changer realizes a non-stopping screen changing operation by alternating two pistons with double filtering areas. During production, the polymer melt is divided into two flow channels inside the screen changer housing, and then conveyed through the two filters equipped with the appropriate filter medium. This filter medium consists of screen packs supported by breaker plates.
KEY POINTS:
- Up to 4x more filter area than circular screen cavities
- Higher throughput
- Multiplied screen life time
- Lower melt pressure
- Higher filtration fineness
- Ultra-compact design
- Less heating capacity
