Body：Ductile iron grade 500-7/ 450-12 in accordance with ISO 1083
Gasket: Rubber E.P.D.M. in accordance with EN 681.1
Fluid temperature: 0°C-50°C， excluding frost
Externall coatings: 1. zinc coating +bitumen painting 2. liquid epoxy painting 3. epoxy applied by FBE
Internall coatings: 1. cement mortar lining 2. liquid epoxy painting 3. epoxy applied by FBE according to customers' requirements.
Standard: Dimensions and testing in accordance with ISO 2531/EN 545