ASTM material spec for PTFE v-ring packing
ASTM material spec for PTFE v-ring packing
(OP)
Help,
New to the valve industry and I am creating a drawing for a packing set. All I Know is the current material used is a white native PTFE. I would like to ad an ASTM material spec to the print to ensure the right stuff.
Thanks
New to the valve industry and I am creating a drawing for a packing set. All I Know is the current material used is a white native PTFE. I would like to ad an ASTM material spec to the print to ensure the right stuff.
Thanks





RE: ASTM material spec for PTFE v-ring packing
RE: ASTM material spec for PTFE v-ring packing
Example: Masoneilan (I do not work for them) identifies their packing as Crane 285K. This particular packing is a square-cross-section aramid fiber (Kevlar) skive-cut ring with a TFE overbraid. For an all-braided TFE ring, they call out Chesterton 324. Other packings are just called out as TFE V-ring or Grafoil.
RE: ASTM material spec for PTFE v-ring packing
I am afraid that is as close as a standard as you will get, but at least that controls the material if not the design.
B
RE: ASTM material spec for PTFE v-ring packing
please take a look at thread408-163021: PTFE for high performance butterfly valve within this Forum: the fantastic world of commercial polymers is always an... "undiscovered country"
Regards, 'NGL
RE: ASTM material spec for PTFE v-ring packing
In fact PEEK was used as a component within a chevron packing set to stop lower extrusion.
B