Screen Changer for discontinuous operation Type HS-Y

Hydraulically actuated Screen Changer for discontinuous operation

The range of compact HS-Y Screen Changers are are the economic solution to filter polymers at KREYENBORG quality.

Use

• in processes where screen changes are rarely needed.
• due to its small dimensions, it is optimal for use in co-extrusion lines.

Applications

• quality filtration of virgin polymers
• protection of downstream equipment
  (such as KREYENBORG gear pump)
• semi-finished products,
  film extrusion with virgin polymer, co-extrusion etc.

Materials

• suitable for all polyolefines as well as many technical polymers

Customized special solutions

• possibility to extract the extruder screw through the screen changer
• high pressure design
  (up to 800 bar)
• special die plates
• inexpensive integration of adaptors into and onto the round housing

Function

• discontinuous melt filter
• the extruder has to be stopped momentarily (approx. 4 min.) for the screen change
• very simple handling for the operator
• piston is moved out of the housing hydraulically (the screen bearing piston remaining in the housing, blocks the flow channel). Once the new filter medium is inserted, the screen bearing piston is moved back into the operating position

Technical Data

The throughput details depend on the respective process parameters, especially viscosity, contamination level and filtration fineness.