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Flow Switches
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Flow Detection, Switching & Control
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Flow switches detect a change in state from flow or no-flow within pipe or ducting. Correspondingly, the sensor inverts a contact to signal an alarm or control a pump or valve.
Flowline general purpose liquid and gas flow switches are offered in sensor and package configurations. Sensors are available in PP-Ryton® or PVDF bodies with a 1A SPST relay and adjustable flow switch set point.
The sensors are also available in packages with compact relay controllers for pump control or junction boxes for wiring termination. Select the appropriate flow switch type based upon your application media, supply, control and installation requirements.
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Flow Switches
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Switch-Pro™ with Compact Relay Controller
 Fail-safe relay control of pumps and valves with 0-60 second time delay
Optional strobe brings immediate attention to flow alarm conditions
PP.Ryton or PVDF wetted material for challenging corrosive fluids
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Switch-Pro™ with Compact Junction Box
1A relay selectable NO or NC via power supply wiring polarity
PP enclosure rated NEMA 4X with 300° conduit swivel base
PP/Ryton or PVDF wetted material for challenging corrosive fluids
Compatible with Flowline controller, alarm and fitting accessories
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Flow Switch™ Compact Relay Controller
Fail-safe compact relay control of pumps and valves with 0-60 second time delay
Optional strobe brings immediate attention to flow alarm conditions
PP enclosure rated NEMA 4X with 300° swivel base for easy conduit alignment
Easy setup with LED indicators for sensor, power and relay status
Compatible with Flowline liquid (FT10) or gas (GT10) flow switch sensors
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Flow Switch™ Remote Relay Controller
Fail-safe remote relay control of pumps and valves with 0-60 second time delay
Easy setup with LED indicators for sensor, power and relay status
35 mm DIN rail mount PP enclosure with removable terminal strips
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Application
Offered in liquid and gas configurations for low-flow detection, the general purpose flow switch is a great choice for a diverse range of relatively clean, non-coating media. Liquid examples include deionized water and sulfuric acid. Gas examples include nitrogen and scrubber exhaust fumes. The 1A relay provides a reliable switch interface with remote devices such as a PLC, SCADA or alarm. The short sensor is intended for use in pipe or ducting from 1/2” to 11/2”; the long sensor is applied in 2” and up. The liquid switch set point may be adjusted from .04 to 3 fps, and the gas switch from 1 to 90 fps.
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