How backup rings stop O-ring extrusion: ISO 3601-4 types, PTFE, filled PTFE and PEEK material comparison, clearance and pressure selection rules, and installation checks.

Wat in hydraulyske silinder-ôfdichtingsset befettet, sets foar ien- en dûbelwurking, realistyske libbensdoer fan ôfdichtingen per belastingsklasse, en hoe't jo de juste set by in fabrikant bestelle.