API-6A Check Valves The MS and R type check valves are used primarily in high pressure mud choke manifolds and high pressure Christmas tree injection and kill lines. End connections can be flanged, clamp hub, butt weld, or a combination. These valves can be supplied to all API 6A temperature and retained fluid classifications.
API-6A R Type Check Valves The R check valve is a unidirectional valve used on mud choke manifolds. End connections can be flanged, clamp hub, butt weld, or a combination. These valves can be supplied to all API 6A temperature and retained fluid classifications.