Lined diaphragm is a special form of valve has cut off function, which spared by the steel shutter valve diaphragm soft materials (rubber and fluorine plastic composite) is made with a composition, and the body cavity of the valve cover cavity separated in order to achieve the medium of cut-off tube. Structural features 1. composite diaphragm valve body cavity and the lower portion of the valve cover cavity separated, and with the formation of DC channel, the upper part of the diaphragm valve stem, valve and other internal parts and the medium is completely isolated, eliminating the packing structure , internal leakage and leakage medium can while avoiding; 2. Using FEP (Teflon) and total fluorine plastic composite made into rubber diaphragm valve with Teflon fluorine plastic lining layer, may be adapted in addition to "molten alkali metal, a variety of corrosive media elemental fluorine "outside. 3. As diaphragm actuator, due to frequent opening and closing, easy to produce fatigue fracture, should be considered characteristic conditions, media were changed regularly. The fluorine plastic corrosion resistance and recommended temperature wind "valves and piping accessories, fluorine plastic lining performance table." The basic model manual G41F3 once-G45F3 G41F46 G45F46 pneumatic Q641F3 electric Q941F3 Q641F46 Q941F46 name the main components of materials gray cast iron parts cast stainless steel acid resistant stainless steel ultra steel ZCPRPR body / bonnet HT250 WCB CF8 CF8M CF3 CF3M valve valve / stem 35 1cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 00cr18Ni10 00Cr17Ni14Mo2 lining / seat PTFE (F4), PCTFE (F3), FEP (F46), PFA (soluble F4) membrane FEP (F46) / CR (chloroprene rubber), PFA (soluble F4) / FPDM (EPR) Stent WCB CF8 CF8 ZCuAI10Fe3 ZCuAI10Fe3 ZCuAI10Fe3 stem nut fastening bolts 35 1Cr17Ni2 1Cr18Ni9Ti nut 45 0Cr18Ni9 0Cr18Ni9 handwheel WCB WCB WCB technical specification design standard GB12239 Structure length JB1688 / GB12221 Flange standard JB / T79 -94 GB9113.1-26 inspection and testing GB / T13927 Drive Manual, electric, pneumatic, normally closed, normally-open main external connection size Nominal size standard value of the reference DN (mm) NPS (inch) LD D1 D2 fb Z-фd d0 H H1 WT (kg) PN0.6MPa / PN1.0MPa 15 1/2 125 95 65 45 2 14 4-ф14 100 105 110 3.5 20 3/4 135 105 75 55 2 16 4-ф14 100 115 125 4 25 1 145 115 85 65 2 16 4-ф14 120 120 135 5.5 32 11/4 160 135 100 78 2 18 4-ф18 120 125 150 8 40 11/2 180 145 110 85 3 18 4-ф18 140 135 175 11 50 2 210 160 125 100 3 20 4-ф18 140 155 195 14 65 21/2 250 180 145 120 3 20 4-ф18 200 170 200 23 80 3 300 195 160 135 3 22 4-ф18 200 200 255 29 100 4 350 215 180 155 3 22 8-ф18 280 270 325 46 125 5 400 245 210 185 3 24 8-ф18 320 335 405 70 150 6 460 280 240 210 3 24 8-ф23 320 370 450 95 200 8 570 335 295 265 3 26 8-ф23 400 480 600 170 250 10 680 390 350 320 3 28 12-ф23 500 545 620 270 300 12 790 435 395 362 4 24 12-ф23 500 585 680 320 PN1.6MPa 15 1/2 130 95 65 45 2 14 4-ф14 120 110 115 4 20 3/4 150 105 75 55 2 16 4-ф14 120 120 130 5 25 1 160 115 85 65 2 16 4-ф14 140 125 140 6 32 11/4 180 135 100 78 2 18 4 -ф18 140 130 155 9 40 11/2 200 145 110 85 3 18 4-ф18 160 140 180 12 50 2 230 160 125 100 3 20 4-ф18 160 160 200 15 65 21/2 290 180 145 120 3 20 4- ф18 200 175 205 24 80 3 310 195 160 135 3 22 8-ф18 200 205 260 30 100 4 350 215 180 155 3 24 8-ф18 280 275 330 48 125 5 400 245 210 185 3 26 8-ф18 320 340 410 75 150 6 480 280 240 210 3 28 8-ф23 320 375 460 105 200 8 600 335 295 265 3 30 12-ф23 400 485 605 182 250 10 730 405 355 320 3 32 12-ф25 500 550 625 295 300 12 850 460 410 375 4 34 12-ф25 500 590 685 345