The D671F(Full)-16c is a pneumatic all-lined single acting/double acting butterfly valve that has a nominal diameter of DN40-DN600. The disc and cast steel body have been made out of ductile cast iron and stainless steel. It has a working temperature of -20℃-+60℃ and a pressure range of 0-10 bar. It is ideally used for drinking water, sewage, high purity water, seawater, etc.