Ball & Plug ValvesA VALVE IS A DEVICE THAT REGULATES, DIRECTS OR CONTROLS THE FLOW OF A FLUID BY OPENING, CLOSING, OR PARTIALLY OBSTRUCTING VARIOUS PASSAGEWAYS. Valves are technically valves fittings, but are usually discussed as a separate category DBSF (DBB Floating Split Body Ball Valve)Materials i accordance to NACE MR 01.75. Catalog Spec. Split Body-All forged construction. Soft/ Metal Seated. Self Relieving Anti Blow-Out stem. Fire safe API 6FA-API 607 ISO 10497. Antistatic device. Materials in accordance to NACE MR 01.75.