Check the listing for details. Apollo Valves, 1 1/2" Stainless Steel Ball-Cone, In Line Check Valve.. Condition: New. Listed at 431.88 USD. 1 1/2" 400 WOG (Water, Oil, Gas), 316 Stainless Steel, Threaded Ball-Cone In Line Check Valve, 1/2# Spring The 62-100 Series is uniquely suited for applications in corrosive environments, including chemical processing, pulp and paper and other process industries. The rugged stainless steel body and RPTFE (Reinforced PolyTetraFluroEthylene) ball check provide reliable, patented protection against reverse flow. Features:Unique, Patented DesignSpring-loaded for fast seating actionCenter guided so that radical alignment is never neededStraight-through flow minimizes pressure lossRoHS (Restriction of Hazardous Substances) CompliantASTM (American Society for Testing and Materials) A351, CF8MPerformance Rating:Maximum Pressure: 400 PSIG CWP(Cold Working Pressure) non-shock125 PSIG SWP (Steam Working Pressure) @ 350° FStandard Materials List:Body: Stainless Steel - ASTM A351, CF8MRetainer: Stainless Steel - ASTM A351, CF8MBall Check: RPTFE - Reinforced TeflonTMGuide: Stainless Steel - ASTM A276, 316Spring: Stainless SteelPRECAUTIONARY NOTE:Not recommended for applications which may induce pulsation or repetitive vibration. See included Installation Manual for Details.