{"product_id":"value-collection-zmsctst228-ptfe-o-ring-dash-228","title":"Value Collection ZMSCTST228 Ptfe O-ring Dash 228","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCTST228 is a polytetrafluoroethylene (PTFE) O-ring with a rectangular cross section, designed for static and dynamic sealing applications across a broad range of industrial and mechanical systems. It measures 2.272 inches inside diameter, 2.510 inches outside diameter, and 0.047 inches thick. The PTFE compound delivers a working temperature range of -65 to 500 degrees F, making it suitable for high-temperature fluid and gas sealing duties where standard elastomers would degrade. Plumbers, HVAC technicians, and industrial maintenance professionals commonly install this type of seal during equipment assembly or preventive maintenance service.\u003c\/p\u003e\u003cp\u003eThis O-ring suits applications in fluid handling systems, valves, pumps, and piping connections where chemical resistance and thermal stability are priorities. The Dash 228 designation follows standard O-ring sizing conventions, allowing straightforward cross-referencing when replacing a worn or damaged seal in an existing assembly. It is sold in packages of 10, making it practical for shops and service fleets that install multiple units per job.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePTFE material provides broad chemical resistance and high-temperature stability\u003c\/li\u003e\n\u003cli\u003eOperating range of -65 to 500 degrees F suits demanding thermal environments\u003c\/li\u003e\n\u003cli\u003eRectangular cross section with medium hardness rating (Durometer 55) for consistent seating\u003c\/li\u003e\n\u003cli\u003eStandard Dash 228 sizing for easy cross-referencing and replacement\u003c\/li\u003e\n\u003cli\u003eSold in packs of 10 to support multi-unit service work\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard Dash 228 O-ring replacement for valves, pumps, fittings, and fluid handling components that specify a PTFE rectangular-section seal at this diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician. Depressurize and isolate the system before removing the old seal. Inspect the groove for scoring or contamination before seating the new O-ring. PTFE seals should be installed without lubrication in most applications unless the equipment manufacturer specifies otherwise.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polytetrafluoroethylene (PTFE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 228\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 2.272 inches (57.71 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.510 inches (63.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.047 inches (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Rectangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness (Durometer)\u003c\/strong\u003e: 55\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -65 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 500 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCTST228\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723775246642,"sku":"ZMSCTST228","price":21.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/30b4cf84e8413a0ccc2591328d901348_3e7598e8-41ec-4bd3-b436-ea9c9f1802fa.jpg?v=1788607912","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsctst228-ptfe-o-ring-dash-228","provider":"Voomi Supply","version":"1.0","type":"link"}