Purge/fill valve
AssigneeWebstone Company, Inc.
InventorMichael E. Reck
Life of this patent
Estimating the term…
Abstract
A purge valve comprising a valve body having a first primary loop port, a second primary loop port, a first secondary loop port and a second secondary loop port is provided. The secondary loop ports are disposed at respective ends or a linear secondary loop portion of the valve body. A primary loop portion of the valve body is formed by a pair of closely spaced tees extending from the secondary loop portion. At least one main valve portion is disposed in a first one of the tees. A drain/venting valve portion extends from the main valve portion. A portion of the secondary loop portion between the tees is shared with the primary loop portion in which flow in a primary loop and a secondary loop are hydraulically separated. A second drain/venting valve portion may be provided in a second one of the tees.
Claims12
A purge valve comprising:
- a valve body having a first primary loop port, a second primary loop port, a first secondary loop port and a second secondary loop port;
- the secondary loop ports disposed at respective ends of a linear secondary loop portion of the valve body;
- a primary loop portion of the valve body formed by a pair of closely spaced tees extending from the secondary loop portion;
- at least one main valve portion disposed in at least one of the tees between the secondary loop portion and a primary loop port;
- and
- a drain/venting valve portion extending from the main valve portion.
A purge valve comprising:
- a valve body having a first primary loop port, a second primary loop port, a first purge/fill port and a second purge/fill port;
- the first primary loop port and second primary loop port disposed at respective ends of a linear primary loop portion of the valve body;
- a first purge/fill portion and second purge/fill portion of the valve body formed by a pair of closely spaced tees extending from the primary loop portion;
- a first purge/fill valve portion disposed in a first one of said tees between the primary loop portion and the first purge/fill port;
- a second purge/fill valve portion disposed in a second one of said tees between the primary loop portion and the second first purge/fill port;
- a main valve portion disposed in said primary loop portion adjacent to one of said tees, said main valve portion configured to simultaneously close a flow path between said first primary loop port and said second primary loop port while opening a path between at least one of said first primary loop port or second primary loop port and at least one of said tees.
Dependencies are inferred from the claim text.