{"product_id":"value-collection-tes70018-o-ring-dash-018-ptfe-silicone","title":"Value Collection TES70018 O-ring Dash 018 Ptfe Silicone","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION TES70018 is a Dash 018 O-ring designed for applications that demand both broad chemical resistance and reliable elastomeric recovery. The ring measures 0.75 inches inside diameter, 0.875 inches outside diameter, and 0.0625 inches thick with a round cross section. Construction uses a seamless PTFE-FEP encapsulation layer that fully encloses a silicone elastomer core. This design matches the chemical and temperature resistance of solid PTFE while retaining the flexibility and compression-set recovery of silicone. Hardness is rated at 70 Shore A. Licensed plumbers, pipefitters, HVAC technicians, and maintenance mechanics install this type of seal in fluid and gas handling systems where aggressive media or wide temperature swings would degrade standard nitrile or neoprene rings.\u003c\/p\u003e\n\u003cp\u003eThis O-ring suits residential and commercial installations wherever a chemically resistant, flexible face or radial seal is required. Typical use cases include chemical process lines, food-grade fluid systems, high-temperature steam or condensate connections, and HVAC refrigerant-adjacent fittings where PTFE-level chemical inertness is specified. The Dash 018 sizing is a standard AS568 designation, making the TES70018 a direct dimensional fit wherever that dash number is called out in a parts list or service manual.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSeamless PTFE-FEP encapsulation fully encloses the silicone core for uniform chemical resistance\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -75 degrees F to 400 degrees F suits cryogenic through high-heat service\u003c\/li\u003e\n  \u003cli\u003eRound cross section provides predictable, uniform sealing load under compression\u003c\/li\u003e\n  \u003cli\u003e70 Shore A hardness rated Hard for positive sealing in standard groove geometries\u003c\/li\u003e\n  \u003cli\u003eDash 018 per AS568 standard sizing for straightforward replacement without measurement\u003c\/li\u003e\n  \u003cli\u003eCombines PTFE chemical inertness with silicone elasticity and compression recovery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Dash 018 AS568-dimension replacement O-ring for face-seal and radial-seal grooves specifying 0.75 inches ID, 0.875 inches OD, and 0.0625 inches cross-section thickness in PTFE-encapsulated silicone construction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eDepressurize and isolate the line or fitting before removing the existing O-ring. Clean the groove of debris and inspect for wear or corrosion before seating the new ring. Avoid stretching the ring beyond its elastic limit during installation; use an appropriate O-ring installation tool for tight grooves. Verify groove dimensions match Dash 018 specifications before final assembly to ensure proper compression and sealing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.75 inches (3\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.875 inches (7\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0625 inches (1\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 018\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: PTFE-FEP Encapsulated Silicone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A (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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: TES70018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718261014834,"sku":"TES70018","price":16.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2f8f085b8db6cc89a80ecc677dc4e070.jpg?v=1788551290","url":"https:\/\/voomisupply.com\/products\/value-collection-tes70018-o-ring-dash-018-ptfe-silicone","provider":"Voomi Supply","version":"1.0","type":"link"}