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Vane material

Vane material

Vane material

We are designing a rotary vane pump that will be pumping pure oxygen. There is a concern about using carbon based materials from an ignition standpoint.  With that in mind we are looking to use non-metallic vanes.  The vane material is Torlon 4301 which is 12% graphite powder and 3% teflon. The vane loads are low and the Max operating temp is 160 deg F. Do you have any experience with this or comments? Any other sugestions on vane material (PV's = 13,000)

RE: Vane material

Typical materials for oxygen service (cryogenic) are 304SS, and brass. I would be concerned that the graphite could combust in pure oxygen at those temperatures.

RE: Vane material

Are you designing a dry pump or a lubricated pump? What did you end up doing about your vane material?

RE: Vane material


We will be testing 5 sets of vanes made from various engineering plastic materials within a couple of weeks.

The pump is designed to run dry.

Bob Kennedy
Turnkey Design Services
Visit our web site for "How to design a gear pump" tips!

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