Wafer Lift Check Valve Main technical parameters: 



 Model 
 Nominal pressure PN (MPa) 
 Test pressure PS (MPa) 
 Operating Temperature (℃) 
 Medium 

 Case 
 Seal 

 H71W-16P 
 1.6 
 2.4 
 1.76 
 ≤ 200 
 Water, steaming bodies, oil, etc. 

 H71H-25Q 
 2.5 
 3.75 
 2.75 
 ≤ 235 

 H71W-25H 
 ≤ 300 

 H71W-25P 
 ≤ 200 
 Nitric acid and other corrosive media 

 H71W-40H 
 4.0 
 6.0 
 4.4 
 ≤ 300 
 Water, steaming bodies, oil, etc. 

 H71W-40P 
 ≤ 200 
 Nitric acid and other corrosive media 






 Wafer Lift Check Valve Specification 
 Body 
 Valve 
 Spring 

 H71W-25H, RH71W-40H 
 2Cr13 
 1Cr13 
 1Cr18 Ni9Ti 

 H71W-16P, RH71W-25P 
 ZG1Cr18 Ni9Ti 
 1Cr18 Ni9Ti 
 1Cr18 Ni9Ti 


 Wafer Lift Check Valve Size table: 





 Nominal 
 MPa 
 DN 
 DN 
 Dimensions (mm) 

 L 
 D1 
 D2 
 D3 
 D4 
 D5 

 PN1.0MPa 

 PN1.6MPa 
 15 
 16 
 52 
 15 
 24 
 31 
 40 

 20 
 19 
 62 
 19 
 30 
 40 
 50 

 25 
 22 
 72 
 24 
 35 
 47 
 58 

 32 
 28 
 83 
 31 
 46 
 56 
 68 

 40 
 31.5 
 93 
 39 
 55 
 66 
 78 

 50 
 40 
 108 
 48 
 65 
 78 
 90 

 65 
 46 
 128 
 62 
 80 
 95 
 110 

 80 
 50 
 142 
 76 
 96 
 110 
 128 

 100 
 60 
 162 
 95 
 115 
 132 
 150 

 125 
 90 
 192 
 110 
 125 
 135 
 - 










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