BSRisingStemResilientSeatedGateValve设计标准Design:BS5163结构长FacetoFace:BS5163法兰标准Flanges:EN1092-2PN16阀体Body:球铁EN-GJS-500-7;闸板Wedge:球铁DL+EPDM/NBR阀杆Stem:AISI420/2CR13;压力:PN16环氧树脂喷涂Productcolor:BlueRAL5017)