Forged gate valve designed with three kinds of bonnets, first is bolt, connecting through MFM, adopt stainless steel belt and the flexible graphite spiral wound gasket, ring connection can be used according to requirements; second is welded bonnet, welding after thread sealing, can also adopt rigid welded according to requirements; third is self-sealing, connecting through thread and self-sealing bonnet

Overall flanged end valve design can be used on gate valve、globe valve、standup-type check valve and swing check valve