Double eccentric hemisphere seal valve factory production of double eccentric hemisphere ball after practice in the petrochemical, metallurgy, electric power, light industry, and prove I plant the double eccentric ball hemisphere to meet user pressure, temperature, medium and caliber parameter different requirements. In particular, some of the harsh working conditions, the use of our products greatly extend the replacement valve maintenance intervals on the system by users welcome! ◆ Main external and connecting dimensions PN (MPa) nominal diameter DN Dimensions (mm) LD D1 D2 bf Z-фd mm in Flanged Flange standard JB / T79.1-94 valve structure length GB1221-89 1.6 50 - 178 160 1251001834-18 65 --190,180,145,120,183 4-1880--203195 1601352034-18 100--229215180 1552038-18125 --254,245,210,185,223 8- 18 150--267280240 2102438-23200 --292,335,295,265,263 12-23 250--330405355 32030312-25300 --356,460,410,375,324 12-25 350--381520470 43534416-25400 --406,580,525,485,364 16-25 450 --432,640,585,545,404 16-30 500--457705650 60844420-30600 --508,840,770,718,485 20-34 700 --610,910,840,788,505 20-41 800--6601020 95089852524-41 flange standard JB / T79.1-94 valve structure length GB1221-89 2.5 50 - 178 160 125 100 20 3 24-41 65 --190,180,145,120,223 4-18 80--203195160 1352238-18100 --229,230,190,160,243 8-18 125--254270220 1882838-23150 --267,300,250,218 30 38-25200--292 360 3102783438-25 250--330425370 33236312-25300 --356,485,430,390,404 12-30 350--381550490 44844416-30400 --406,610,550,505,484 16-34 450--432660600 55550416-34500 --457,730,660,610,524 20-34 600--508840770 71856520-41700 --61,095,587,581,560 524-48800--660 1070 99093064524-48