The Single Isolation Valve (Model YMVX1) is a primary isolation monoflange valve built with OS&Y construction. It features flanged inlet and either flanged or threaded outlet connections. Available in a range of pressure classes: 150/300/600lb, 900/1500/2500lb, and up to API 10000. The flange-by-flange option comes complete with captive bolts, nuts, and washers. A full range of head unit options is available. Dimensions vary by flange size.