Flow Control Valve
The Series FC Flow Controls are used to maintain a constant pre-determined flow in a system. They must be installed in the correct flow direction (indicated by the label) to work properly. They utilize a diaphragm which changes shape with inlet pressure changes, thus maintaining a constant flow rate. They are normally used to replace more costly flow control devices. Standard flow ranges are from 1/4 GPM to 120 GPM. The minimum pressure drop needed across the flow control is 15 PSI in order to get the desired flow. These flow controls are designed for liquids similar in viscosity to water. All applications should be tested for flow characteristics and chemical compatibility to insure desired results. Swelling of the diaphragms in certain liquids will result in loss of flow rate accuracy. An in-line strainer or filter should be installed before the flow control when suspended solids are present, and for all applications below 1 GPM. The rated output of Series FC flow controls will vary +/- 15% with EPDM diaphragm assemblies. The Series FC flow controls can operate from 40°F to 140°F with PVC bodies with EPDM diaphragms. With optional polypropylene, Teflon®, Kynar® PVDF bodies can operate from 40°F to 180°F with EPDM diaphragms. The Series FC flow controls must have at least 15 PSI pressure drop across the valve in order to deliver the rated flow. Maximum pressure is 120 PSI at 73°F.
• Maintains constant flow with inlet pressure changes from 15 to 120 PSI • For corrosive and ultra-pure liquid applications • No metals in contact with liquids • Standard flow ranges from 1/4 GPM to 120 GPM • Automatic operation - no adjustments necessary • Sizes from 1/4" through 3" pipe size