gate valve,stem gate valve,2 inch gate valve flanged ends,bolted bonnet. reliable quality,competitive prices. gate valve,stem gate valve,2 inch gate valveDesign & manufacture standard: API6D, API600, API603 ... B16.25.Inspection & test standard: API6D, API598.Pressure: 150Lb, 300Lb, 600Lb, 900Lb, 1500Lb or PN10~PN160 or JIS 10K ~ ... 900Lb~1500Lb, pressure seal bonnet is available. cast steel gate valve