Polypropylene (PP) – basic version

Worek filtracyjny z polipropylenu

PP needle felt is used in industrial filtration where the working temperature does not exceed 90 oC and the filtered medium requires high resistance to strong acids and alkalis.

Applicable in the following industrial sectors:

  • electroplating plants / galvanisation
  • steel production
  • fertilizers production
  • liquid filtration

PROPERTIES OF A FILTER BAG MADE OF PP NEEDLE FELT

Versions and Finishes:

  • water repellent
  • oil and water repellent
  • with PTFE membrane
  • antistatic
  • asymmetrical
  • fire retardant
  • spark-blocking

Area weight:

  •  400 – 550 g/m2

Surface:

  • heat-set
  • glazed
  • calandered

Operating temperature:

  • Continuous:
 80 °C
  • Peaks:
 90 °C

Chemical resistance:

  • Weak acids:
 ↄ ↄ ↄ ↄ
  • Strong acids:
 ↄ ↄ ↄ ↄ
  • Solvents:
 ↄ ↄ
  • Weak alkalis:
 ↄ ↄ ↄ ↄ
  • Strong alkalis:
 ↄ ↄ ↄ ↄ
  • Hydrolysis:
 ↄ ↄ
  • Oxidizing:
 ↄ
Resistance scale: ↄ ↄ ↄ ↄ – excellent, ↄ ↄ ↄ – good, ↄ ↄ – fair, ↄ – poor