This standard specifies the classification, marking, requirements, test methods, and inspection rules of marine impact flange cast steel stop check valves (hereinafter referred to as stop check valves) with flange connection dimensions according to CB/T 4196 and GB/T 2501. , logo and packaging. This standard applies to the design, manufacture and acceptance of stop check valves for pipeline systems where the medium is compressed air.
CB/T 4329-2013 Referenced Document
CB/T 3927 Wall thickness of casting body for marine valve
CB/T 4196 Marine pipe flanges-connection dimensions and mating face
GB/T 11352-1989 Carbon steel castings for general engineering purposes
GB/T 11698 Metal valves for use in marine flanged pipe systems.Face-to-face and center-to-face dimensions