{"product_id":"value-collection-tes70337-o-ring-dash-337-ptfe-silicone","title":"Value Collection TES70337 O-ring Dash 337 Ptfe Silicone","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION TES70337 is a Dash 337 PTFE-encapsulated silicone O-ring designed for demanding sealing applications where chemical resistance and wide temperature range are required. The ring features a seamless, uniform FEP (fluorinated ethylene propylene) Teflon encapsulation that completely encloses a silicone elastomer core. This construction delivers the chemical and temperature resistance of solid PTFE alongside the elasticity and recovery properties of silicone. With a hardness rating of 70 and a round cross-section, it provides reliable compression sealing in fluid and gas systems. Licensed plumbers, HVAC technicians, and industrial maintenance professionals routinely use encapsulated O-rings in high-purity and chemically aggressive service environments.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in plumbing, HVAC, chemical processing, and food-grade or pharmaceutical-adjacent piping systems where standard elastomers would degrade. The PTFE encapsulation resists a broad range of solvents, acids, and process fluids. It is appropriate for both residential and commercial mechanical system installations where standard nitrile or EPDM rings are insufficient due to chemical exposure or extreme temperature swings. The Dash 337 designation identifies the cross-section and diameter for straightforward replacement sourcing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePTFE-encapsulated construction delivers chemical resistance of solid PTFE with the flexibility of silicone core\u003c\/li\u003e\n\u003cli\u003eSeamless, uniform FEP Teflon encapsulation with no gaps or seams\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -75 degrees F to 400 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross-section profile for standard groove compatibility\u003c\/li\u003e\n\u003cli\u003eHardness rating of 70 (Hard) for consistent compression and recovery\u003c\/li\u003e\n\u003cli\u003eDash 337 standard sizing for straightforward replacement identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard Dash 337 O-ring replacement for sealing grooves requiring a 3 inches inside diameter, 3-3\/8 inches outside diameter, and 3\/16 inches cross-section thickness in PTFE-encapsulated silicone construction.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Shut down and depressurize the system completely before removing the existing seal. Inspect the seating groove for scoring, debris, or corrosion before installing the new ring. Do not use petroleum-based lubricants with PTFE-encapsulated or silicone O-rings; use a compatible lubricant appropriate for the process fluid and elastomer type.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness (Cross-Section)\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 337\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polytetrafluoroethylene-Encapsulated Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 (Hard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -75 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 400 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: TES70337\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697393369394,"sku":"TES70337","price":22.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/237168b20e108e41c773f904f82fce03.jpg?v=1788351215","url":"https:\/\/voomisupply.com\/products\/value-collection-tes70337-o-ring-dash-337-ptfe-silicone","provider":"Voomi Supply","version":"1.0","type":"link"}