Patent ID: 8820708

Claim:
A valve trim assembly for use with fluid valves, comprising: a cage; a cage retainer to retain the cage; and a seal assembly at least partially positioned between the cage and the cage retainer, wherein the seal assembly comprises a first spring-loaded seal and a second spring-loaded seal, the first spring-loaded seal configured to be a primary seal and the second spring-loaded seal configured to trap particulate to prevent the particulate from affecting the first-spring loaded seal to extend a useful life of the first spring-loaded seal, the first spring-loaded seal positioned in a seal gland between first and second scrapers, the first and second scrapers to be biased toward a fluid control element to prevent the particulate from entering the seal gland from between inner surfaces of the cage and the cage retainer and an outer surface of the fluid control element to be positioned in the valve trim assembly, the first and second scrapers being biased toward the fluid control element in a direction associated with a first fluid flow direction.