The Double Block & Bleed Valve (Model MDBBX) is a high-integrity monoflange valve designed for demanding process environments. It provides full flange connection options and is suitable for direct mounting to pipelines. Features include a 360-degree rotatable adaptor (male or female), integral gauge siphon option, and vent sizes of ¼” NPT, ½” NPT, or G ¼” parallel thread with locking pin. Supports pressure classes up to API 10000.