PFTE Non Return Valve

back Non-Return Valves

ChemDisc | DTEF

The ChemDisc | DTEF is a high-quality PTFE non-return valve. Developed especially for use with lined pipe systems and chemically aggressive media.

Technical Data

  • Function: Shut-off
  • Materials
    • Liner: 1.4301
    • Body: PTFE, modified PTFE, modified PTFE conductive
    • Disc: PTFE, modified PTFE, modified PTFE conductive
  • Nominal pressure: PN 10
  • Nominal sizes: DN 15 - DN 150
  • Temperature range: -20°C - +200°C


  • Superior corrosion resistance due to consistent use of PTFE components and PFA-coated Hastelloy springs
  • As a version with conductive PTFE, the non-return valve is ideally suited for use in potentially explosive atmospheres
  • Particularly robust with metallic support ring to protect the corrosion-resistant PTFE components against deformation
  • 2 weeks standard delivery time thanks to prioritized PTFE valve production and intelligent order logistics