Parker Seal Group
Back-up Ring PDB Profile

PTFE Modular Back-up

Standard Materials:

  • 0100 Virgin PTFE

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PDB back-ups are PTFE anti-extrusion rings. The PDBA and PDBB
profiles are designed to retrofit MIL Spec grooves used in commercial
applications. PDBA styles are split rings retrofitting MS28774 designs,
while PDBB styles are solid rings retrofitting MS27595 designs. Due
to the fact that these profiles are designed to commercial grooves, MIL Spec certifications are not available. Although the standard material is virgin PTFE, any of Parker’s available PTFE blends can be used.

Catalogs
PDB Catalog PDB Catalog
149.8 kB