{"product_id":"mcdonnell-miller-fs5-3-4in-npt-flow-switch","title":"McDonnell \u0026 Miller FS5-3-4IN-NPT Flow Switch","description":"\u003cdiv\u003e\u003cp\u003eThe McDonnell \u0026amp; Miller FS5-3-4IN-NPT Flow Switch is an inline flow-detection device that senses the movement of liquid through a piping circuit and produces a switch output suitable for triggering downstream equipment, alarms, or control logic. The model designation FS5-3-4IN-NPT identifies a 3\/4-inch NPT threaded connection, enabling straightforward installation into standard piping configurations and compatible with typical 3\/4-inch NPT fittings. As part of the FS5-3 family, this flow switch functions to indicate flow presence to a control system, providing a binary signal that can be used for automation, interlocks, or process monitoring and can be wired to conventional relay or controller inputs. Manufactured by McDonnell \u0026amp; Miller, the FS5-3-4IN-NPT is a dedicated component for fluid-handling systems where a mechanical flow-detection device is required to confirm whether liquid is moving. In operation, flow switches like this provide a simple, dependable method to verify that liquid is moving and to initiate responses in automation or safety circuits.\u003c\/p\u003e\u003c\/div\u003e","brand":"MCDONNELL","offers":[{"title":"New","offer_id":46248423948522,"sku":null,"price":217.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-041.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/mcdonnell-miller-fs5-3-4in-npt-flow-switch","provider":"GTG Hardware","version":"1.0","type":"link"}