Said: pneumatic three partial hardness sealing butterfly valve flange
Model number: D643 (Y and F, H,)
Size: (~ 800 ~ 32 "(2")
Pressure: GBPN1.0, 1.. , 2.5 Mpa, ANSI class150, 300
The valve body material: cast iron, cast iron, stainless steel, chrome molybdenum steel, alloy steel