AS2638.2 Non-Rising Stem Resilient Seated Gate Valve 设计标准Design:AS2638.2 结构长Face to Face: AS2638.2 法兰标准 Flanges: AS 2129 Table E 阀体Body: AS 1831 500-7; 闸板Wedge: 球铁DL+EPDM/NBR 阀杆Stem: AISI 420/2CR13; 压力:PN16 环氧树脂喷涂Product color: Blue RAL 5017
