Swing Check Valve 

 ◆ The main performance specifications of the test pressure (MPa) Nominal pressure PN (MPa) 
 2.5 2.5 6.4 1.6 
 Shell strength test 3.75 6.0 9.6 24 
 Seal Test (liquid) 2.75 4.4 7.04 17.6 
 Seal Test (gas) 0.5-0.7 
 Suitable medium of water, steam, oil nitric acid acetic acid 
 Applicable temperature ≤ 25 ℃ ≤ 00 ℃ ≤ 50 ℃ 


 Structure Length: GB1221-89 
 Flange standard: JB79-59 



 ◆ The main dimensions and connection dimensions DN 
 DN (mm) Nominal pressure PN (MPa) LHD D1 D2 D6 bf f1 zd 
 25 1.6 
 2.5 160 --1158565--16 - - 4-14 
 32 180 --13510078--18 - - 4-18 
 40 200 --14511085--18 - - 4-18 
 50230177160125 100--203--4-18 
 65290192180145 120--223--8-18 
 80310192195160 135--223--8-18 
 100,350,217,230,190 160--243--8-23 
 125,400,250,270,220 188--283--8-25 
 150,480,270,300,250 218--303--8-25 
 200 550,350,360,310,278 --343--12-25 
 250 650,410,425,370,332 --363--12-30 
 300 750,430,485,430,390 --404--16-30 
 350 850,450,550,490,448 --444--16-34 
 400 950,560,610,550,505 --484--16-34 
 5,001,150,618,730,660,610 --524--20-41