A150 series sanitary ball valves have been specifically designed to meet the requirements of high purity applications in accordance with ASME BPEa specification. All valve bodies are investment cast Stainless Steel with an internal surface finish of 15 Ra with 20 Ra maximum per SFV-1. Other grades of surface finishes, including electropolishing are available. Bodies are investment cast stainless steel and all bodies are solution annealed for the highest quality and added strength. All body castings are marked with a foundry heat number for full traceability. The three piece body design.