燃气管道阻火器|燃气管道阻火器厂家|上海燃气管道阻火器产品说明：一、产品用途本产品适和于安装在输送可燃性气体如回热炉燃料气、天然报、石油液化气、煤矿***排放的管网，也适和于民用煤气管道，防止在正常情况下火焰于管道中逆向传播，以避免灾难***故的发生。安全阻火速度1425m/s,极限阻火速度1605m/s。二、结构特点本产品是利用金属波纹板之间狭缝间隙对管道中传播的亚音速或超音速火焰具有淬熄作用的原设计制造的。FPA燃气阻火器产品结构示意图:三、主要外形与法兰连接尺寸型号公称通径DND1D2LPN1.0MPaPN1.6MPaPN2.5MPaPN4.0MPaFPA-151518×357×3.5330330330330FPA-202025×357×3.5330330340340FPA-252532×3.573×4365365375375FPA-323238×3.573×4375375390390FPA-404045×3.589×4375390405410FPA-505057×3.5108×44204254454650FPA-656573×4133×4.5485485515520FPA-808089×4159×4.5505520560560FPA-100100108×4219×8555560600645FPA-125125133×4.5278×8615620670720FPA-150150159×4.5325×8665665735800FPA-200200219×8377×994095010151100FPA-250250278×8480×101030107011501265FPA-300300325×8529×101295129514301545FPA-350350377×9630×121350135014301545上海维旺迪阀门有限公司：http:///products/11/ml上海维旺迪阀门：http:///product/chengxing111111/2011-05-13/ml)