{"product_id":"industrial-18301-liquid-flow-switch","title":"Industrial 18301 Liquid Flow Switch","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-36\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-126\" data-turn-id-container=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-36\" data-turn-id=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-36\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-turn-start-message=\"true\" data-message-id=\"2f9b1b37-789c-4e71-b96d-c14df88a75e0\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-end=\"16\" data-start=\"0\" data-section-id=\"17lc1ru\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-end=\"657\" data-start=\"18\"\u003eThe Thomas Products 18301 Right Angle Liquid Flow \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eSwitch\u003c\/a\u003e Model 1300 is used for monitoring liquid flow and actuating electrical control circuits when a preset flow rate is reached. Commonly installed in coolant systems, HVAC equipment, machine tools, and industrial process applications, this right-angle flow switch features a 3\/4-inch NPT bronze body with a factory-set 1.5 GPM actuation point for dependable flow detection in compact installations. Maintenance teams and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this part for repair, retrofit, expansion, and replacement of industrial liquid flow monitoring systems. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"676\" data-start=\"659\" data-section-id=\"5ms9th\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-end=\"1174\" data-start=\"678\"\u003eThe Thomas Products 18301 is designed for liquid flow sensing in water, oil, and other compatible fluids where installation space requires a 90-degree flow path. It is widely used in machine tool coolant systems, HVAC equipment, industrial cooling loops, lubrication systems, and OEM process equipment. The rugged one-piece bronze housing provides low pressure drop, while the factory-replaceable switch capsule simplifies maintenance and minimizes downtime. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1205\" data-start=\"1176\" data-section-id=\"5hg6bl\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-end=\"2263\" data-start=\"1207\"\u003e• Manufacturer Part Number (MPN): 18301\u003cbr data-end=\"1249\" data-start=\"1246\"\u003e• Brand: Thomas Products Ltd.\u003cbr data-end=\"1281\" data-start=\"1278\"\u003e• Model: 1300 Series\u003cbr data-end=\"1304\" data-start=\"1301\"\u003e• Product Type: Right Angle Liquid Flow Switch\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e• Housing Material: Bronze\u003cbr data-end=\"1382\" data-start=\"1379\"\u003e• Flow Path: 90° Right Angle\u003cbr data-end=\"1413\" data-start=\"1410\"\u003e• Process Connection: 3\/4 in NPT (Both Ports)\u003cbr data-end=\"1461\" data-start=\"1458\"\u003e• Factory Flow Set Point: 1.5 GPM (Increasing Flow)\u003cbr data-end=\"1515\" data-start=\"1512\"\u003e• Operating Media: Water, Oil, and Compatible Liquids\u003cbr data-end=\"1571\" data-start=\"1568\"\u003e• Switch Type: 20 W SPDT Reed Switch\u003cbr data-end=\"1610\" data-start=\"1607\"\u003e• Electrical Rating: 20 VA Pilot Duty\u003cbr data-end=\"1650\" data-start=\"1647\"\u003e• Operating Pressure: 400 PSI @ 100°F\u003cbr data-end=\"1690\" data-start=\"1687\"\u003e• Proof Pressure: 800 PSI @ 100°F\u003cbr data-end=\"1726\" data-start=\"1723\"\u003e• Burst Pressure: 1200 PSI @ 100°F\u003cbr data-end=\"1763\" data-start=\"1760\"\u003e• Operating Temperature: -20°F to +300°F (Optional up to 400°F)\u003cbr data-end=\"1829\" data-start=\"1826\"\u003e• Wiring: 18 AWG, 24 in Polymeric Lead Wires\u003cbr data-end=\"1876\" data-start=\"1873\"\u003e• Shuttle Material: Teflon with Ceramic Ring Magnet\u003cbr data-end=\"1930\" data-start=\"1927\"\u003e• Spring Material: 316 Stainless Steel\u003cbr data-end=\"1971\" data-start=\"1968\"\u003e• O-Ring Material: Viton® (\"A\")\u003cbr data-end=\"2005\" data-start=\"2002\"\u003e• Set Point Accuracy: ±10% Maximum\u003cbr data-end=\"2042\" data-start=\"2039\"\u003e• Repeatability: 1% Maximum Deviation\u003cbr data-end=\"2082\" data-start=\"2079\"\u003e• Features: Factory-Replaceable Switch Capsule, Low Pressure Drop Globe-Shaped Housing, Shock and Vibration Resistant, Field-Serviceable Design \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"2289\" data-start=\"2265\" data-section-id=\"1cz0398\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2561\" data-start=\"2291\"\u003e• Thomas Products 18300\u003cbr data-end=\"2370\" data-start=\"2367\"\u003e• Thomas Products 18302\u003cbr data-end=\"2448\" data-start=\"2445\"\u003e• Thomas Products 18303\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"THOMAS","offers":[{"title":"New","offer_id":51714010972462,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_4e5b6eae-1fef-4d2c-bf15-362437e550f3.jpg?v=1770413689","url":"https:\/\/plgautomation.com\/products\/industrial-18301-liquid-flow-switch","provider":"PLG Automation ","version":"1.0","type":"link"}