{"product_id":"wilkins-xt-8-water-thermal-expansion-tank-21-gal","title":"Wilkins XT-8 | Water Thermal Expansion Tank, 2.1 Gal","description":"\u003cp\u003e\nThe Wilkins XT-8 is a water thermal expansion tank designed to protect potable water systems from pressure buildup caused by thermal expansion, keeping system pressure below relief valve settings.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eKey Specifications:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Volume \u0026amp; Acceptance Volume:\u003c\/strong\u003e 2.1 gal total, 1.0 gal max acceptance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Supply Pressure:\u003c\/strong\u003e 80 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-charge Pressure:\u003c\/strong\u003e 40 PSI factory preset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e NSF\/ANSI\/CAN 61 \u0026amp; NSF\/ANSI 372\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e 3\/4 NPT threaded\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eOther Related Variants:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eXT-18:\u003c\/strong\u003e 4.8 gallon version, 2.4 gal acceptance volume\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXT-35:\u003c\/strong\u003e 9.0 gallon version, 4.25 gal acceptance volume\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eMaterials:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon Steel outer shell with epoxy finish\u003c\/li\u003e\n\u003cli\u003ePolypropylene liner\u003c\/li\u003e\n\u003cli\u003eButyl rubber diaphragm\u003c\/li\u003e\n\u003cli\u003eStainless steel connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTypical Installation:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nLocal codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted on the cold water supply and at least 18 inches from the cold water inlet to the heater. Pre-charge should be adjusted to match incoming water pressure (adjust pre-charge with no water pressure in tank). A properly sized pressure relief valve set at a maximum of 150 PSI must also be installed in the system. For installations that have a supply pressure above 80 PSI, a properly sized pressure reducing valve should be installed on the system.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; border-left: 4px solid #1d85af; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nIAPMO Listed; Water Quality Association - Certified to NSF\/ANSI\/CAN 61 \u0026amp; NSF\/ANSI 372; ANSI B1.20.1\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFeatures \u0026amp; Benefits:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Expansion Protection:\u003c\/strong\u003e The Zurn XT-8 protects water systems from pressure buildup when water heats and expands, preventing relief valve activation and potential system damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe for Potable Water:\u003c\/strong\u003e The Zurn XT-8 features a polypropylene liner and butyl diaphragm certified to NSF\/ANSI\/CAN 61 \u0026amp; 372, ensuring safe contact with drinking water with 0.25% max weighted average lead content.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Pre-charge:\u003c\/strong\u003e Factory set at 40 PSI but adjustable up to 80 PSI to match specific system requirements, providing flexible installation options for various pressure conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Carbon steel shell with epoxy finish and stainless steel connection ensures long-lasting performance in residential and commercial applications up to 200°F.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I determine the correct pre-charge pressure for my system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The pre-charge should be adjusted to match incoming water pressure. Adjust pre-charge with no water pressure in the tank using the standard tire valve connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Where should the expansion tank be installed in relation to the water heater?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The assembly should be mounted on the cold water supply and at least 18 inches from the cold water inlet to the heater, unless local codes specify otherwise.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this expansion tank be used on fire sprinkler systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, Model XT tanks are not suitable for use on fire sprinkler systems as required by NFPA 13 or 13D.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cdiv id=\"W3TucRPBpqQA9ARvwg6ni-content\"\u003e\n\u003cp\u003e\n\u003cspan\u003e\n\u003cstrong\u003eNOTICE:\u003c\/strong\u003e\nDo not use with water that is unsafe or of unknown quality without adequate\ndisinfection either before or after the system.\n\u003c\/span\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\n\u003ci\u003e\n\"Hydrate Everyone, Everywhere!\" BottleFillingStations.com |\n\u003ca rel=\"noopener\" href=\"https:\/\/bottlefillingstations.com\/pages\/contact-us\" target=\"_blank\"\u003e\nContact us\n\u003c\/a\u003e\n\u003c\/i\u003e\n\u003c\/p\u003e","brand":"Zurn Wilkins","offers":[{"title":"Default Title","offer_id":42982261915711,"sku":"XT-8","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/XT-8_AF.jpg?v=1772778307","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-xt-8-water-thermal-expansion-tank-21-gal","provider":"BottleFillingStations.com","version":"1.0","type":"link"}