hard seal gate valve

1 according to E101, manufacturing and inspection technology conditions and the provisions of the JB/T3595-2002. 2, valve test according to JB/T3595-2002 and JB2640-81 regulation, valve seal test monk seal test pressure according to the provisions of the JB/T3595-2002. 3, the structure length according to the size of E101 rules or provide. 4, welding groove or as stipulated in the power industry management standards 78 dg users with size. Main dimensions: model Z962H-200