Hard seal butterfly valve flange structure and performance profile 

 Three eccentric hard sealing butterfly valve products, the company is developing long-life, energy-saving valve. Products meet national standards JB/T8527-97 (metal seal butterfly valve), GB/T13927-92 (General Valve pressure test) standards and other relevant provisions of the standard valve. The product from the valve body, disc, ring, transmission and other major components. It is structured as three-dimensional eccentric principles of design, hard and soft elastic sealing and sealing compatible processing of new multi-layer technology, the butterfly valve in the working, reduce the torque to achieve the labor-saving, energy-saving function of. To ensure that the overall resistance to corrosion. Temperature. , Anti-extravagant loss of reliability. 

 Hard seal butterfly valve flange Main features: 
 1. Unique structure, Small lightweight, flexible operation, labor-saving and convenient; 
 2. Reliable seal, gas seal can be achieved without leakage; 
 3. Regulation of linear flow characteristics tend to have the best; 
 4. Principle of three-eccentric, so that the sealing surface damage extended approximately zero extravagant life of the valve; 
 5. Wide application. Such as: can be used for water, steam, oil, air, gas and other media. 
 6. Following the application of different temperature and 6.4MPa pressure levels, pipeline corrosion and other media. 

 Seal flange butterfly valve uses 
 The butterfly valve for food. Medicine. Petrochemicals. Power plants. Steel. Industrial water treatment and environmental protection high-rise buildings. Trail for regulating supply and drainage of fluid flow and cut the best device. 
 Hard seal butterfly valve flange connection and the main dimensions 



 DN 
 DN 
 Structure length L 
 Dimensions (reference value) 
 Connection (standard value) 
 Reference 
 Weight Dt343H 

 H 
 Dt343H 
 PN0.6MPa 
 PN1.0MPa 

 mm 
 inch 
 Short 
 Long 
 H1 
 A1 
 B1 
 D 
 D1 
 z-d 
 D 
 D1 
 z-d 

 50 
 2 
 108 
 150 
 112 
 350 
 180 
 200 
 140 
 110 
 4-14 
 165 
 125 
 4-18 
 17 

 65 
 5 / 2 
 112 
 170 
 115 
 370 
 180 
 200 
 160 
 130 
 4-14 
 185 
 145 
 4-18 
 20 

 80 
 3 
 114 
 180 
 120 
 380 
 180 
 200 
 190 
 150 
 4-18 
 200 
 160 
 8-18 
 23 

 100 
 4 
 127 
 190 
 138 
 420 
 180 
 200 
 210 
 170 
 4-18 
 220 
 180 
 8-18 
 25 

 125 
 5 
 140 
 200 
 164 
 460 
 180 
 200 
 240 
 200 
 8-18 
 250 
 210 
 8-18 
 40 

 150 
 6 
 140 
 210 
 175 
 555 
 270 
 280 
 165 
 225 
 8-18 
 285 
 240 
 8-22 
 47 

 200 
 8 
 152 
 230 
 208 
 605 
 270 
 280 
 320 
 280 
 8-18 
 340 
 295 
 8-22 
 60 

 250 
 10 
 165 
 250 
 243 
 680 
 270 
 280 
 375 
 335 
 12-18 
 395 
 350 
 12-22 
 95 

 300 
 12 
 178 
 270 
 283 
 800 
 380 
 420 
 440 
 395 
 12-22 
 445 
 400 
 12-22 
 124 

 350 
 14 
 190 
 290 
 310 
 835 
 380 
 420 
 490 
 445 
 12-22 
 505 
 460 
 16-22 
 181 

 400 
 16 
 216 
 310 
 340 
 915 
 450 
 470 
 540 
 495 
 16-22 
 565 
 515 
 16-26 
 260 

 450 
 18 
 222 
 330 
 380 
 960 
 480 
 490 
 595 
 550 
 16-22 
 615 
 565 
 20-26 
 338 

 500 
 20 
 229 
 350 
 410 
 1020 
 480 
 490 
 645 
 600 
 20-22 
 670 
 620 
 20-26 
 360 

 600 
 24 
 267 
 390 
 470 
 1225 
 480 
 660 
 755 
 705 
 20-26 
 780 
 725 
 20-30 
 540 

 700 
 28 
 292 
 430 
 550 
 1355 
 640 
 660 
 860 
 810 
 24-26 
 895 
 840 
 24-30 
 580 

 800 
 32 
 318 
 470 
 640 
 1470 
 640 
 660 
 975 
 920 
 24-30 
 1015 
 950 
 24-33 
 845 

 900 
 36 
 330 
 510 
 710 
 1545 
 750 
 860 
 1075 
 1020 
 24-30 
 1115 
 1050 
 28-33 
 1050 

 1000 
 40 
 410 
 550 
 770 
 1795 
 850 
 860 
 1175 
 1120 
 28-30 
 1230 
 1160 
 28-36 
 1500 

 1200 
 48 
 470 
 630 
 890 
 1965 
 850 
 900 
 1405 
 1340 
 32-33 
 1455 
 1380 
 32-39 
 2000 


 Source: Yongjia County Star Valve Co., Ltd. 





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