锻钢闸阀 相关型号:Z11H,Z11H-16,Z11H-25,Z11H-40,Z11H-64,Z11H-100 使用标准: Usage specification: 设计制造:按GB12224-89、GB12228-89、JB/T7746-95 连接端尺寸:(1) 承插孔尺寸接JB1751-75 阀门检验和试验:按GB/T13927-92 材料 碳钢按GB699的规定 不锈钢按GB1220的规定 )耐热钢按GB1221的规 Design and manufacture conform to standard:GB1224-89,GB1228-89,JB/T7746-95 The connecting dimensions:The dimensions of holls conform to standard JB1751-75 Nspectionand test conform to standard GB/13927-92 Material steel casing iron conform to standard GB669 stainless steel conform to standard GB1220 steam-resisting steel conform to standard GB12 主要零件材料 Matcrial for main parts 主要零件名称Parts name 材料Material 阀体、阀盖Body,bonnet 碳钢Carbon steel 阀座Seat 不锈钢Stainless steel 阀板Disc 不锈钢Stainless steel 阀杆Stem 不锈钢Stainless steel 垫片Seat 不锈钢Stainless steel+石墨graphite 填料Packing 柔性石墨Flexible graphite 主要尺寸及重量Main dimensions and weight