1. Material: Ductile cast iron ASTM-A536 Grade 65-45-12 2. Surface can be coated with epoxy powder, hot dip zinc or ordinary paint 3. Advantage: Flexible and rigid, Joint reliability, Isolates noise and vibration, Convenient joint 4. Applications: Fire protection; Power plant: Heating, ventilation and air conditioning; Industrial plant: Water treatment, plumbing and mining. Nominal Size mm/in Pipe O. D mm/in Working Pressure PSI/MPa Measurement mm/in D L 80 88.9 500 57 3 3.500 3.45 2.244 100 108.0 500 73 4 4.252 3.45 2.874 100 114.3 500 73 4 4.500 3.45 2.874 125 133.0 500 73 5 5.250 3.45 2.874 125 139.7 500 73 5 5.500 3.45 2.874 150 159.0 500 79 6 6.260 3.45 3.11 150 165.1 500 79 6 6.500 3.45 3.11 150 168.3 500 79 6 6.625 3.45 3.11 200 219.1 500 98 8 8.625 3.45 3.858 250 273.0 500 111 10 10.750 3.45 4.37
