actuator valve,flange valve,toyo gate valve,bolted bonnet,flanged ends. good quality,ISO certified. actuator valve,flange valve,toyo gate valveDesign & manufacture standard: API6D, API600, API603, ANSI ... .34, ISO10434.Face to face dimensions: ANSI/ASME B16.10.Flange connection: ANSI/ASME B16.5 for NPS<24”, ASME B16 ... . For 900Lb~1500Lb, pressure seal bonnet is available. gear gate valve