We are offering gate valve. features benefits os&y type, bolted bonnet. Flexible wedge. Design std.api 600 ansi 16.34 . Testing as per api 598 en iso 12266-1. Face to face dimensions as per b 16.10. Valves with back seat arrangement. Flange drilling as per ansi b 16.5 rf serrated butt weld ends as per asme b