◆ Usage 
 Wafer lifting check valve from the valve body, valve, springs and other components, horizontal or vertical installation in the piping system to prevent the media back 


 ◆ Features 
 1, has the structure a short, small size, light weight 
 2, valve valve quickly, the water hammer pressure is small 
 3, the flow smooth, fluid resistance is small; movement sensitive, good sealing performance 


 ◆ performance parameters 




 Model 

 DN 

 Test pressure 

 Operating temperature 

 Suitable temperature 


 Case 

 Seal 


 H71H-16Q 

 1.6 

 2.4 

 1.76 

 ≤ 235 ℃ 

 Water, steam, 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 ℃ 


 H71W-40P 

 ≤ 200 ℃ 

 Water, steam 


 ◆ Structure of Images