H76H, H76Y, H76W, H76X, H76F-type wafer butterfly valve used for pure line and industry, environmental protection, water treatment, high-rise building to the drain line to prevent reverse flow of media use. 

 【Features】 
 1, small size, light weight, compact structure, easy maintenance 
 2, valve plate with dual type, under the elastic force in the spring under the self-speed closed Moment 
 3, closed because of the role of speed to prevent the media back 
 4, the body length of the structure, small size, rigidity 
 5, safe and convenient, can be used for both horizontal and vertical direction with 

 【Standard】 
 1, flange connecting dimensions: GB/T1724.1-98 
 2, the structure length: GB/T12221-1989, ISO5752-82 

 】 【Performance parameters 
 Type of work pressure (MPa) Temp (℃) for medium body material 
 H76H-10C ~ 40 1.0 ~ 4.0 -29 ~ 425 water, steam, oil steel 
 H76W-10P ~ 25 1.0 ~ 2.5 ≤ 150 stainless steel, nitric acid 
 H76Y-40P 4.0 ≤ 150 stainless steel, nitric acid 

 HH47, H47XF, HDH47X butterfly buffering check valve connecting the main shape and size 

 Nominal diameter DN (mm) Dimensions (mm) 
 LH B1 B2 
 200,230,550,540,600 
 250,250,630,600,700 
 300,270,690,650,740 
 350,290,780,710,800 
 400,310,860,770,870 
 450,330,910,830,920 
 5,003,509,809,001,000 

 Nominal diameter DN (mm) Dimensions (mm) 
 LH B1 B2 
 600 390,107,010,901,250 
 700 430,122,012,001,360 
 800 470,132,013,201,480 
 900 510,143,014,201,580 
 1,000,550,155,015,501,700 
 1,200,630,180,017,801,950 
 1,400,710,198,020,002,175