Nickel Chromium Plated Brass Low Pressure Ball Valves. Brass "CW 617N-UNI-EN 12165" body and ball. Brass "CW 614 N-UNI-EN 12164" stem and gland. Ball ground by diamond-tipped tool. Virgin PTFE seats with 7° min tightness angle. PTFE stem packing and anti friction ring. Aluminium lever and butterfly handle with red plastic coating. Matt chrome finishing. Threading to ISO 228/1. 20, 25 and 32 Bar max pressure @ 80°C. Manufacturer Rastelli.