Flow control valve and hydronic system

A flow control valve, comprising:

• a main body;
• an outlet defined in the main body;
• a first inlet orifice defined in the main body, the first inlet orifice being modulatable between:
• a closed mode of the first inlet orifice in which the first inlet orifice is substantially sealed from the outlet, and
• an open mode of the first inlet orifice in which the first inlet orifice is fluidly connected to the outlet;
• a second inlet orifice defined in the main body, the second inlet orifice being distinct from the first inlet orifice and being modulatable between:
• a closed mode of the second inlet orifice in which the second inlet orifice is substantially sealed from the outlet, and
• an open mode of the second inlet orifice in which the second inlet orifice is fluidly connected to the outlet;
• and
• a port body disposed in the main body and being pivotable relative to the main body about a pivot axis, the port body having a first port and a second port defined in the port body, the second port being distinct from the first port, the first port and the second port being fluidly connected to the outlet of the main body, the port body being pivotable relative to the main body about the pivot axis between a first position and a second position, the first port selectively fluidly connecting the first inlet orifice to the outlet, the first port being substantially out of alignment with the first inlet orifice when the port body is in the first position and thereby defining the closed mode of the first inlet orifice, the second port selectively fluidly connecting the second inlet orifice to the outlet, the second port being substantially out of alignment with the second inlet orifice when the port body is in the first position and thereby defining the closed mode of the second inlet orifice,
• the first port and the second port being disposed, sized, and shaped relative to each other in the port body such that the port body is pivotable about the pivot axis:
• within a first range of positions of the port body about the pivot axis to modulate the first inlet orifice between the closed mode and the open mode of the first inlet orifice while the second inlet orifice is in the closed mode of the second inlet orifice;
• and
• within a second range of positions of the port body about the pivot axis to modulate the second inlet orifice between the closed mode and the open mode of the second inlet orifice while the first inlet orifice is in the closed mode of the first inlet orifice.

A flow control valve, comprising:

• a main body;
• an inlet defined in the main body;
• a first outlet orifice defined in the main body;
• a second outlet orifice defined in the main body, the second outlet orifice being different from the first outlet orifice;
• and
• a port body disposed in the main body and being pivotable relative to the main body about a pivot axis, the port body having a first port and a second port defined in the port body, the second port being distinct from the first port, the first port and the second port being fluidly connected to the inlet of the main body, the port body being pivotable relative to the main body about the pivot axis between a first position and a second position, the first port selectively fluidly connecting the first outlet orifice to the inlet, the first port being substantially out of alignment with the first outlet orifice when the port body is in the first position and thereby defining the closed mode of the first outlet orifice, the second port selectively fluidly connecting the second outlet orifice to the inlet, the second port being substantially out of alignment with the second outlet orifice when the port body is in the first position and thereby defining the closed mode of the second outlet orifice;
• the first port and the second port being disposed, sized, and shaped relative to each other in the port body such that pivoting of the port body from the first position to the second position in a first direction about the pivot axis brings the first port and the second port in and out of alignment with corresponding ones of the first outlet orifice and second outlet orifice to:
• modulate the first outlet orifice from the closed mode of the first outlet orifice into an open mode of the first outlet orifice while the second outlet orifice is in the closed mode of the second outlet orifice, the first outlet orifice being at least in part aligned with the first port when the first outlet orifice is in the open mode of the first outlet orifice, then
• modulate the second outlet orifice from the closed mode of the second outlet orifice into an open mode of the second outlet orifice while the first outlet orifice is in the open mode of the first outlet orifice, the second outlet orifice being at least in part aligned with the second port when the second outlet orifice is in the open mode of the second outlet orifice, and then
• modulate the first outlet orifice from the open mode of the first outlet orifice into the closed mode of the first outlet orifice while the second outlet orifice is in the open mode of the second outlet orifice.