Walworth Products are manufactured in accordance with internationally recognized and accepted standards including API, ANSI, ASTM, MSS, NACE, AWWA, BSI, and CSA. At each of our five manufacturing facilities dedicated teams of highly qualified mechanical and design engineers work to assure that each phase of the production process for each of our valve product lines meets or exceeds the customer's specifications. CAD utilizing finite element analysis, fugitive emission qualification and fire test capabilities are just a few of the in house resources helping to assure that our customers receive a quality valve product.