The Block & Bleed Valve (Models YMX14 and YMX15) features OS&Y construction and supports both vertical and horizontal mounting on pipelines. Includes full flange connection options, a 360° rotatable adaptor (male or female), and an integral gauge siphon. Pressure class LPR (150/300/600lb) for YMX14 and HPR (900/1500/2500lb) for YMX15. Vent sizes include ¼” NPT, ½” NPT, or G ¼” parallel thread with locking pin. Dimensions follow flange size.