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US 10,539,132 B2Granted
Modular gland arrangements for a plug valve
AssigneeKerr Machine Co.
InventorKelcy Jake Foster
Life of this patent
Estimating the term…
Abstract
Insert elements that may be positioned within a high pressure plug valve. The elements have two or more recessed grooves formed around the fluid opening of the elements. The grooves are spaced from one another. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of spaced grooves in a single insert element, a kit may be formed from two or more otherwise identical insert elements, each with a single recessed groove at a different position around the fluid opening.
Claims20
A valve, comprising:
- a body, comprising:
- a flow passage including an inlet passage and an outlet passage;
- and
- an enlarged internal chamber intersecting the flow passage;
- a rotatable plug element positioned within the enlarged internal chamber, the plug element having a fluid passage extending therethrough;
- and
- a plurality of insert elements positioned within the enlarged internal chamber and cooperating to at least partially surround the plug element, each insert element of the plurality of insert elements having a fluid opening extending therethrough and a groove system comprising:
- a first endless groove surrounding the fluid opening;
- and
- a second endless groove surrounding the first groove;
- a plurality of seals disposed in one-to-one relationship with the plurality of insert elements, such that the groove system of each of the plurality of insert elements receives one and only one seal.
8 more elements
A kit, comprising:
- a valve body, comprising:
- a flow passage including an inlet passage and an outlet passage;
- and
- an enlarged internal chamber intersecting the flow passage;
- a rotatable plug element positioned within the enlarged internal chamber, having a fluid passage extending therethrough;
- a plurality of first insert elements sized to surround the plug element within the enlarged internal chamber, each first insert element having a fluid opening extending therethrough and one and only one endless groove surrounding that fluid opening;
- and
- a plurality of second insert elements sized to surround the plug element within the enlarged internal chamber, each second insert element having a fluid opening extending therethrough and one and only one endless groove surrounding that fluid opening;
- in which the one and only one endless groove of each first insert element would fully surround or be fully surrounded by the one and only one endless groove of its corresponding second insert element if the said first and second insert elements were superimposed.
6 more elements
Dependencies are inferred from the claim text.