... : 5-30MM 4.Certification:ASTM,DIN,SAE,VDA6.1,UL,FDA Silicone Umbrella Valve ItemSilicone Umbrella ValveBrandRAMISCountry of OriginXiamen, ChinaItem No.All ... ModelUmbrella O.D5-30mmOpening pressure0.3-55kPaMaterial NBR,FVMQ,EPDM,SILICONE,SBR,CR.Color Black,Green,Orange.PerformanceWear resistant and corrosion ... are produced according to ASTM,DIN,SAE,VDA6.1, UL, FDA, JIS . umbrella valve