Transcription of 334 Data Sheet - Ball Valve
1 Steam SpecificationsSaturated Steam Rating with ST SeatsValveSize1/2" "1"1-1/4"1-1/2"2"2-1/2" F455455447435428424406Is an exclusive ball seating material that extends length of service from three to five times over conventional is particularly recommended for use in high pressuresteam lines, thermal fluid lines, or for any media havingwidely variable or excessive temperatures. ST seats canwithstand temperatures to 550 F, pressures to 1440 psi andcontinuous saturated steam in excess of 450 psig. ST SeatSeat Material SpecificationsNamePCTFERTFESTD elrinUHMWPEPEEKM aterialTFE + 15% carbonTFMP olytetrafluoroethleneTFE +ekonol / carbon / graphiteAcetal HomopolymerPolyethylenePoly Ether Ether KetoneTemperature ( F)Pressure (Max)-20 to 425 F-20 to 425 F-20 to 550 F-60 to 180 F-60 to 200 F0 to 600 F1440 psi1000 psi1440 psi3000 psi (up to 3/4")1500 psi4000 psi (up to 1/2")334 data SheetNOTE.
2 This table is provided as an indication of service all seats are considered applicable to high purity serviceChlorotrifluoroethylene-400 to 400 F3800 psiPressure (PSI)-100-501001503503002502005004504005 50 Delrin-AFST 1/4" ~ 2"01550100200250300350400450150144055060 050020003000500 Temperature (F)UHMWPE 1/4" ~ 2"UHMWPE 2-1/2"40005000600 PEEK 1/4" ~ 2"TFM 1/4" ~ 2"-4005500 PCTFE 1/4" ~ 1"PCTFE 1-1/4" ~ 2"PCTFE 2-1/2" 1000 RTFE 1/4" ~ 2"Saturated Steam Curve750 PEEK 2-1/2"2500 psi (1")2000 psi (1-1/4" ~ 2-1/2")3500 psi (3/4" ~ 1")3000 psi (1-1/4" ~ 2")
