Uses: 

 Valve in the oil, gas, coal and ore mining, refining, processing and pipeline transportation systems; in chemical products, pharmaceutical and food production species; in hydropower, thermal power and nuclear power production systems; in urban and industrial enterprises to drainage, heating, and gas supply system; in the fields of irrigation and drainage systems; in metallurgical production system can be widely used, is a construction and production, national defense and people's lives, the importance of mechanical products. Valve closed piping system in various types of cut off or switched to medium flow, so that the media in accordance with the predetermined program transmitted to the various designated points. 

 Product Features: 

 1, the manual part of the handle can be pressed steel or cast stainless steel handle. Structure of the handle has a limit, the valve open, closed position to set the limit, when the key device used in the valve when the block has a keyhole limit switch position can be locked to avoid misuse. Clearly on the handle on and off logo. 
 2, the valve stem A182F (1Cr13) and prepared forged a whole, the hardness to HB220 ~ 250. Stem flat key or by spline or square Qi and handle connections, versatility, easy disassembly. With blowout proof stem structure. 
 3, selection of knitting the filler valve, flexible graphite sealing rings or PTFE-ene ring, making the lubrication of the stem in certain circumstances to achieve a reliable seal. 
 4, if necessary, valve can be designed as anti-static structure, the ball and valve stem and the body set up between the conductive spring, to avoid the static ignition ignite flammable material, to ensure system security. 
 5, sealing forms. According to different working conditions can be used soft seal, seal, seat dampers and other structures; DN150 following the float in the form, DN200 following fixed ball form. 
 6, the valve can be set at the secondary seal seat structure, seat and stem parts of the installation of the grease valve, an emergency may be temporarily sealed, and can be extended as needed to fit the valve stem was the laying of underground places. 

 Major parts of the documents: 
 Valve stem packing gasket sealing surface of the ball for medium temperature 
 WCB 1Cr13 1Cr13 1Cr13 
 Stellite alloy 
 Body Material Flexible Graphite 
 Stainless steel and flexible graphite 
 08 mild steel 
 F304 F316 Flexible Graphite 
 Knotted graphite -29-425 ℃ water, steam, oil 
 WC6 15CrMo 15CrMo -29-425 ℃ 
 WC9 25Cr2MoV 25Cr2MoV 
 LCB 304 304 -46-354 ℃ 
 CF8 304 304 -196-600 ℃ part of the acid and alkali 
 CF3 304L 304L 
 CF8M 316 316 
 CF3M 316L 316L 


 The main dimensions: 


 Nominal by DN 2 "2-1/2" 3 "4" 5 "6" 8 "10" 12 "14" 16 "18" 20 "24" 28 "32" 36 "40" 
 d1 51 64 76 102 127 152 203 254 305 337 387 438 489 591 686 781 876 978 
 L RF 178 191 203 229 356 394 457 533 610 686 762 864 914 1067 1245 1372 1524 1753 
 BW 216 241 283 305 381 457 521 559 635 762 838 914 991 1143 1346 1524 1727 1880 
 H 102 114 127 152 184 219 273 360 395 430 470 550 580 700 800 950 1100 1200 
 Manual H1 107 125 152 178 300 330 398 495 580 625 670 698 840 1050 1100 1150 1247 1374 
 E - - - - - - 116 116 171 171 257 257 257 150 83 83 123 123 
 F - - - - - - 350 350 420 420 400 400 400 410 650 650 735 735 
 W 230 400 400 650 1050 150 600 600 800 800 800 800 800 800 800 800 800 800 
 Wt (Kg) 12 16 22 35 58 74 205 322 460 576 864 1280 1600 3540 4500 5940 7540 9320 
 Electric H2 - - - - - 554 600 652 760 770 830 - 940 1020 1115 - - - 
 L1 - - - - - 235 235 235 259 400 400 - 410 410 410 - - - 
 Pneumatic H3 274 379 389 479 552 666 736 926 159 1127 1393 1468 1538 1370 1450 - - - 
 L2 270 405 405 576 576 776 776 776 1060 1060 1360 1360 1360 2840 2840 - - - 

 Class 300Lb 
 Nominal by DN 2 "2-1/2" 3 "4" 5 "6" 8 "10" 12 "14" 16 "18" 20 "24" 28 "32" 36 "40" 
 d1 51 64 76 102 127 152 203 254 305 337 387 438 489 591 686 781 876 978 
 L RF 216 241 283 305 381 403 502 568 648 762 838 914 991 1143 1346 1524 1727 1880 
 BW 216 241 283 305 381 457 521 559 635 762 838 914 991 1143 1346 1524 1727 1880 
 H 102 114 127 152 184 219 273 360 395 430 470 550 580 700 800 950 1100 1200 
 Manual H1 107 125 152 178 300 330 398 495 580 625 670 698 840 1050 1100 1150 1247 1374 
 E - - - - - - 116 116 171 171 257 257 257 150 83 83 123 123 
 F - - - - - - 350 350 420 420 400 400 400 410 650 650 735 735 
 W 230 400 400 650 1050 150 600 600 800 800 800 800 800 800 800 800 800 800 
 Wt (Kg) 15 24 30 55 87 118 255 370 533 640 1030 1524 2100 4200 5300 7860 8684 10300 
 Electric H2 - - - - - 235 235 400 400 410 410 - 420 690 690 - - - 
 L1 - - - - - 74 350 350 420 420 400 - 400 410 650 - - - 
 Pneumatic H3 340 379 452 479 646 666 814 1002 1059 1150 1205 1250 1295 1390 1470 - - - 
 L2 405 405