DIN3352 F5 Non-Rising Stem Resilient Seated Gate Valve 设计标准Design: DIN 3352 结构长Face to Face: DIN3202 F5 法兰标准 Flanges: EN 1092-2 PN16 阀体Body: 球铁GGG50; 闸板Wedge: 球铁GGG50+EPDM/NBR 阀杆Stem: AISI 420/