Product Item: Pneumatic Butterfly Valve.
Design Standard: API 609.
Body Material: ASTM B148 C95800.
Nominal Diameter: 18 Inch, DN450.
Pressure: Class 150 LB, PN20.
Working temperature: -29℃ to +120℃.
Face to Face: ASME B16.10.
Test and Inspection: API 598.