The Hex Blok valves can be used on Upstream Offshore/Onshore Gas and Oil production and initial processing installations. Typically used on liquid hydrocarbon applications to minimize the size and weight of the pipe-valve assemblies used for primary and/or secondary isolation, vent and calibration. Used for primary isolation of analyzer takeoffs.

Also used in downstream Oil Refining and Petrochemical production of flanged processes for primary isolation of primary takeoffs.