PTFE plate

Dear Group Members

I will appreciate if you answer following question : If temperature of pipe be ~500 C(930 F),can I use PTFE plate under 4" shoe support ?
If no, what do you recommend?
Is there any general rule for PTFE plate or another material selection to reduce friction factor ?
Best regards
Hosein

[Non-text portions of this message have been removed] Received on Mon Sep 23 03:36:00 2002