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US 12,281,712 B2Granted
Boiler pressure relief valve and automatic air vent isolation assembly
AssigneeNIBCO Inc.
InventorsChristopher W. Mason, Lisa Lyon, Andrew J. Terry
Life of this patent
Estimating the term…
Abstract
An isolation assembly for a boiler unit that incorporates a pressure relief valve and an automatic air vent to a valve body that includes a valve positioned adjacent to the automatic air vent. The unitary valve body reduces the number of components and leak paths and incorporates a ball valve to permit removing and/or securing the automatic air vent without having to purge the adjacent plumbing system.
Claims19
A valve assembly, comprising:
- a unitary valve body having a first end section, a second end section, and a medial section located in between said first end section and said second end section, wherein said first end section has opposed first and second ports with a generally perpendicular section that transitions into said medial section;
- and
- said second end section includes a third port that is positioned generally perpendicular to said medial section;
- a union member, coupled to said second port;
- a valve member located on said unitary valve body below said first port, wherein said valve member opens and closes a fluid passageway leading to said first port;
- a pressure relief valve coupled to said third port;
- an automatic air vent coupled to said first port;
- a fourth port located in said medial section;
- and
- wherein said medial section includes a fifth portion that is positioned opposite said fourth port.
7 more elements
A valve assembly for a boiler, comprising:
- a unitary valve body having a first end section, a second end section, and a medial section located in between said first end section and said second end section, wherein said first end section has opposed first and second ports with a generally perpendicular section that transitions into said medial section;
- and
- said second end section includes a third port that is positioned generally perpendicular to said medial section;
- a pressure relief valve coupled to said third port;
- an automatic air vent coupled to said first port;
- said second port coupled to a boiler vent outlet;
- a valve member located on said unitary valve body below said first port, wherein said valve member opens and closes said fluid passageway leading to said first port;
- and
- a fourth port located in said medial section.
6 more elements
A boiler assembly, comprising:
- a boiler unit with a vent outlet;
- a unitary valve body having a first end section, a second end section, and a medial section located in between said first end section and said second end section, wherein said first end section has opposed first and second ports with a generally perpendicular section that transitions into said medial section;
- and
- said second end section includes a third port that is positioned generally perpendicular to said medial section;
- a pressure relief valve coupled to said third port, an automatic air vent coupled to said first port, and said second port coupled to said vent outlet;
- a valve member located on said unitary valve body below said first port, wherein said valve member opens and closes the fluid passageway leading to said first port;
- and
- a fourth port located in said medial section.
5 more elements
Dependencies are inferred from the claim text.