Performance description 

 The butterfly valve using homogeneous materials processed into ring, the use of hydraulic methods. 
 Generally applicable to industrial, utilities, environmental protection and other lines. 

 Standard 
 Flange Size: GB4216.4; 
 Structure length: GB12221-89 
 Pressure Test: GB44981-85; 




 Main technical parameters 

 Nominal diameter DN (mm) 1000 ~ 3200 
 Nominal pressure PN (MPa) 0.6 1.0 1.6 
 Test pressure PS (MPa) 0.9 1.5 2.4 strength test 
 Leakage ≤ 0.1 × DNmm3 / S (line with GB/T13927-92 standard) 
 For media water, air, steam, oil, etc. 
 Temperature -40 ~ 600 ℃ for 


 Major parts material 

 Name of Material 
 Body gray cast iron, ductile iron, carbon steel, stainless steel, chrome-nickel, molybdenum and titanium steel, 
 Valve plate gray cast iron, ductile iron, carbon steel, stainless steel, chrome-nickel, molybdenum and titanium steel, 
 Stainless steel stem, 2Cr13, chrome-nickel steel, molybdenum and titanium 
 Copper alloy valve seals, stainless steel 
 Valve plate gasket NBR rubber, oil resistant, stainless steel 


 Installation dimensions