Wafer type ball B1 Series Wafer ball valve made of cast iron, the sphere of float, in strict accordance with the quality standards of production related products, in line with the ISO 9001 standard. B1 series ball full bore, which can effectively reduce fluid turbulence and head loss. Product Description: B1 Series Wafer ball valve made of cast iron, the sphere of float, in strict accordance with the quality standards of production related products, in line with the ISO 9001 standard. B1 series ball full bore, which can effectively reduce fluid turbulence and head loss. Application: mainly used in heating and air conditioning systems, central heating, water supply and water treatment, industrial, agricultural systems, fluid can be compressed air, oil and various compounds. Can be installed in the middle and end of the pipeline can be frequently opened, the upper flange standard ISO 5211, can be connected to multiple drives. Not for use in steam systems and flow regulation. Diameter: DN20-100