... standard:ISO 5.Thread type:G,R, NPT, BSP Ppr ball valveFeature:1. Material: Brass(CuZn39Pb3/CuZn39Pb2, CW614N/CW617N and ... not scaling, no rust, anti-bacterial.3. Light weight, high strength and high impact strength.4. Convenient installation, reliable, recycled, environmental protection ... heating equipment.7. Piping system for other industries and agriculture. High quality male thread PPR ball valve