Valve assembly for positive displacement pumps
OwnerSteven Thompsoninventor
Life of this patent
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Abstract
A valve assembly for a positive displacement fluid pump is described. The valve assembly includes a valve seat having a central opening formed therein. A closure disc is positioned on the valve seat for closing the central opening. The closure disc is formed of a technical ceramic material. The valve assembly has a generally cylindrical wall including a seat surface. An elastomeric seal is affixed to the seat surface such that the closure disc contacts the elastomeric seal when in a closed position. The ceramic closure disc is made from a technical ceramic material to provide enhanced resistance to corrosion and wear from fluids that flow through the valve assembly.
Claims20
A valve assembly for a positive displacement fluid pump comprising:
- a valve seat having a central opening formed therein;
- a closure disc positioned on said valve seat for closing the central opening, said closure disc being formed of a technical ceramic material;
- and
- means for centering said closure disc and said spring on the valve seat.
A valve assembly as set forth in any one of the preceding claims wherein the technical ceramic material is selected from the group consisting of aluminum oxide, chromium oxide, high alumina, titanium oxide, zirconium oxide, and combinations thereof.
Dependencies are inferred from the claim text.