{"product_id":"jobe-topaz-valve-3-4-long-tail","title":"Jobe Topaz Float Valve - 3\/4\" Long Tail","description":"\u003ch2 style=\"font-size:1.6em; font-weight:700; line-height:1.25; margin:0 0 0.6em;\"\u003eJobe Topaz 3\/4\" Long Tail Float Valve – Through-Wall Water Trough Valve for Stock Tanks\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eJobe Topaz 3\/4\" Long Tail\u003c\/strong\u003e is a \u003cstrong\u003ewater trough float valve\u003c\/strong\u003e built to keep livestock troughs, \u003cstrong\u003estock tanks\u003c\/strong\u003e and water tanks full automatically. Its \u003cstrong\u003elong tail\u003c\/strong\u003e comes with a \u003cstrong\u003ebacknut and seal washer\u003c\/strong\u003e, ready to mount through the wall of your trough or tank.\u003c\/p\u003e\n\u003cp\u003eLike every Topaz, it uses a \u003cstrong\u003epilot-operated diaphragm\u003c\/strong\u003e: the float works a small pilot valve, which opens the main valve for \u003cstrong\u003ehigh flow\u003c\/strong\u003e and then \u003cstrong\u003ecloses gradually to help reduce water hammer\u003c\/strong\u003e. Set the water level by hand with no tools, and lock it off whenever you need to.\u003c\/p\u003e\n\u003cp\u003eJobe calls the Topaz a good choice wherever \u003cstrong\u003ehigh flow\u003c\/strong\u003e and \u003cstrong\u003ecompact, robust construction\u003c\/strong\u003e are needed. Built from \u003cstrong\u003ecorrosion-resistant materials\u003c\/strong\u003e, with a built-in port for Jobe's \u003cstrong\u003eFrostPro anti-freeze device\u003c\/strong\u003e (sold separately) for cold weather.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLong Tail with Backnut \u0026amp; Seal Washer\u003c\/strong\u003e\u003cbr\u003e1-1\/2\" thread length, supplied ready for through-wall mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Flow Pilot-Operated Design\u003c\/strong\u003e\u003cbr\u003eThe float operates a small pilot valve, which operates the main diaphragm valve for fast refills.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGradual Shut-Off\u003c\/strong\u003e\u003cbr\u003eCloses slowly to help reduce water hammer in your lines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Mounting\u003c\/strong\u003e\u003cbr\u003eInstalls top, side or bottom entry, horizontally or vertically — above or below the water line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTool-Free Adjustment \u0026amp; Lock Switch\u003c\/strong\u003e\u003cbr\u003eSet the water level by hand, and lock the valve in the off position when you need to.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003eConnection: 3\/4\" long tail (1-1\/2\" thread length, backnut \u0026amp; seal washer included)\u003cbr\u003e\nOperating Pressure: 5–100 psi (0.3–7 bar)\u003cbr\u003e\nMax Temperature: 140°F (60°C)\u003cbr\u003e\nWater Level Differential: 3\/4\"–2-1\/2\" (20–60mm), increases with inlet pressure\u003cbr\u003e\nMounting: Top, side or bottom entry\u003cbr\u003e\nFloat: 125mm HDPE (standard)\u003cbr\u003e\nMaterials: Glass-filled nylon body, 304 stainless steel hardware\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1749\/0017\/files\/TOPAZ-Float-Valve-INFO-2025.pdf?v=1791930482\" target=\"_blank\" rel=\"noopener\" style=\"color:#0000EE;\"\u003e\u003cstrong\u003e\u003cu\u003eJobe Topaz Spec Sheet (PDF)\u003c\/u\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLong tail or short tail — which do I need?\u003c\/strong\u003e\u003cbr\u003eThe 3\/4\" long tail has a 1-1\/2\" thread with a backnut and seal washer for mounting through a trough or tank wall. The 3\/4\" short tail has a 7\/8\" thread for a compact, low-profile connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work on a gravity-fed system?\u003c\/strong\u003e\u003cbr\u003eThe Topaz operates from 5 psi (0.3 bar) up to 100 psi (7 bar), covering many gravity-fed and pressurized systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I prevent back-siphoning?\u003c\/strong\u003e\u003cbr\u003eJobe recommends mounting the valve at least two inlet diameters above the trough's overflow. Some mounting positions may not comply with local regulations, so check yours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed a different size or tail?\u003c\/strong\u003e\u003cbr\u003eSee every option on the \u003ca href=\"\/products\/jobe-topaz-float-valve\"\u003e\u003cstrong\u003eJobe Topaz Float Valve\u003c\/strong\u003e\u003c\/a\u003e page — 3\/4\", 1\" and 1-1\/4\" inlets in long and short tail.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eSimple, reliable, built to last — the Jobe Topaz 3\/4\" Long Tail keeps your troughs full without the fuss.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Jobe","offers":[{"title":"3\/4\" Long Tail","offer_id":40598635085879,"sku":"W-VLV-00721","price":107.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1749\/0017\/files\/Jobe_Topaz_3-4_Long_Tail_2000x2000_f4c4e68d-91fc-4f4a-a0ee-ae1fd45148ee.jpg?v=1791931916","url":"https:\/\/powerflexfence.com\/products\/jobe-topaz-valve-3-4-long-tail","provider":"Powerflex","version":"1.0","type":"link"}