Weco Wing Union Sour Service
Weco® original wing unions for sour gas are manufactured to the standards of the National Association of Corrosion Engineers MR-01-75 and the American Petroleum Institute RP-14E. The words "sour gas" are either stamped on the part with low stress dot stamps or forged into the part that identifies all products. All sour gas wing union assemblies are normally fitted with Flouroelastomer seal rings.