Patent ID: 11873999
Assignee: NIBCO INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An expansion tank service valve assembly, comprising:
a unitary body having a passageway with a first end portion, a second end portion, and a medial portion located between said first end portion and said second end portion, including:
a tee located within said first end portion, said tee including a generally vertical section with a first port and a second port and a generally horizontal section extending into said medial portion;
a generally vertical third port and a generally horizontal fourth port located within said second end portion;
a fifth port located within said medial portion; and
a tab extending from an exterior surface of said medial portion;

a first valve member received in the passageway in said first end portion, said first valve member opening said passageway to said second port when said first valve member is in a first position, and said first valve member closing said passageway to said second port when said first valve member is in a second position; and
a second valve member received in the passageway in said second end portion, said second valve member connecting the passageway to said third port while blocking the fourth port when said second valve member is in a first position, and said second valve member closing said passageway to said third port when said second valve member is in a second position.