Flow control valves are used where fluids in a system must be limited to a set maximum flow rate. Typical applications include balancing of chill water system branches to ensure that the heat exchangers in the various branches receive the the desired flow rate of chilled water. This is important to ensure proper temperature control in rooms of buildings which determines the level of comfort for occupants.
Flow Limiting Valve
The function of the flow limiting valve is to allow only a set constant flow rate through the valve, preventing excessive flow through the pipeline regardless of changing line pressure. The pilot responds to the differential pressure across an orifice plate downstream of the valve and it causes the valve to close more when the flow rate exceeds the set value.
