BUHLMANN Rohr-Fittings-Stahlhandel GmbH + Co. KG
Buhlmann Tubes, Fittings and Flanges for Steam Boilers, Chemical Plant Construction and Oil and Gas Industry. Our products correspond to both current international (API) and European (EN) standards
Code and standard: API STD 594
API STD 594 covers the design, materials, face-to-face dimensions, pressure-temperature ratings, inspection, examination, and testing requirements for two types of check valves.