Isolation service valve assembly for motorized zone valves
AssigneeNIBCO Inc.
InventorChristopher W. Mason
Life of this patent
Estimating the term…
Abstract
A motorized zone valve assembly permits the servicing and/or replacement of a motorized zone valve in a hydronic heating and/or cooling system. The motorized zone valve assembly includes isolation valves coupled to the incoming and outgoing ports of the motorized zone valve via union nuts. The isolation valve members can be closed to permit the removal of the motorized zone valve by the loosening of the two union nuts. In addition, the isolation valve coupled to the outgoing port can include a drain valve and drain port to permit the isolation and draining of individual zones of the hydronic system.
Claims20
A motorized zone valve assembly, comprising:
- a motorized zone valve having a housing, an incoming port with a union nut, and an outgoing port with a union nut;
- a first valve assembly having a tee-shaped valve body with an inlet, an oppositely disposed outlet, a first fluid passageway extending between said inlet and outlet, a drain port, and a second fluid passageway extending from the drain port to the first fluid passageway;
- a first valve member with a ball positioned in between said inlet and said outlet, at the intersection of the first fluid passageway and the second fluid passageway;
- a second valve member with a ball positioned in said second fluid passageway;
- a second valve assembly having an inlet and an oppositely disposed outlet, a fluid passageway extending between said inlet and said outlet, with a third valve member positioned in the fluid passageway;
- wherein said first valve assembly is coupled to said outgoing port;
- and
- wherein said second valve assembly is coupled to said incoming port.
A plumbing assembly for coupling to a motorized zone valve, comprising:
- a motorized zone valve having a housing, an incoming port with a union nut, and an outgoing port with a union nut;
- a first valve assembly having a valve body with an inlet, an oppositely disposed outlet, a first fluid passageway extending between said inlet and outlet, a drain port, and a second fluid passageway extending from the drain port to the first fluid passageway;
- a first valve member with a ball positioned in between said inlet and said outlet, at the intersection of the first fluid passageway and the second fluid passageway;
- a second valve member with a ball positioned in said second fluid passageway;
- a second valve assembly having an inlet and an oppositely disposed outlet, a fluid passageway extending between said inlet and said outlet, with a third valve member positioned in the fluid passageway;
- wherein said first valve assembly is coupled to said outgoing port of the motorized zone valve;
- and
- wherein said second valve assembly is coupled to said incoming port of the motorized zone valve.
Isolation valve assemblies for a motorized zone valve, comprising:
- a first isolation valve assembly having a valve body with an inlet, an oppositely disposed outlet, a first fluid passageway extending between said inlet and outlet, a drain port, and a second fluid passageway extending from the drain port to the first fluid passageway;
- a first valve member with a ball positioned in between said inlet and said outlet, at the intersection of the first fluid passageway and the second fluid passageway;
- a second valve member with a ball positioned in said second fluid passageway;
- a second isolation valve assembly having an inlet and an oppositely disposed outlet, a fluid passageway extending between said inlet and said outlet, with a third valve member positioned in the fluid passageway;
- wherein said first valve assembly is coupled to an outgoing port on a motorized zone valve;
- and
- wherein said second valve assembly is coupled to an incoming port on the motorized zone valve.
Dependencies are inferred from the claim text.