Flowserve 4-BX2-L3811A1V0NZ is a 4-inch Class 300 lug-mount butterfly valve from Flowserve Corporation. The lug-mount configuration enables inline isolation in piping systems with a compact butterfly body. This model is identified by the part number 4-BX2-L3811A1V0NZ and is designed for Class 300 service in standard 4-inch installations.
