BSNon-RisingStemMetalSeatedGateValve设计标准Design:BS5150结构长FacetoFace:BS5150法兰标准Flanges:EN1092-2PN16阀体Body:灰铁EN-GJL-250;闸板Wedge:灰铁EN-GJL-250;阀杆Stem:AISI420/2CR13;阀盖Bonnet:灰铁EN-GJL-250;压力:PN16环氧树脂喷涂Productcolor:BlueRAL5017)