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A Guide ring always seals two surfaces. It is pressed against the cylinder wall and the groove flank by the pressure load and its inherent pre-loading force. PTFE Guide rings are self-clamping. Consequently, in most cases, there is no need to back the ring by a clamping spring.
Application & UsageThe function of a Guide seal is to guide the piston and piston rod of a cylinder, absorbing transverse forces. At the same time, it prevents metal-to-metal contact, optimizing the performance of the sealing system.
Materials usedVirgin PTFE, Bronze filled PTFE & Filled Grades of PTFE.