天然防爆阻火器

概述；秦工天然气阻火器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理设计制造的?天然气阻火器标注示例天然气阻火器外形及相关尺寸见右图和下表型号?公称直径DN?D1?D2?L?PN1.0MPa?PN1.6MPa?PN2.5MPa?PN4.0MPa?FPB-15?15?18×3?57×3.5?330?330?330?330?FPB-20?20?25×3?57×3.5?330?330?340?340?FPB-25?25?32×3.5?73×4?365?365?375?375?FPB-32?32?38×3.5?73×4?375?375?390?390?FPB-40?40?45×3.5?89×4?375?375?405?410?FPB-50?50?57×3.5?108×4?420?420?445?465?FPB-65?65?73×4?133×4.5?485?485?515?520?FPB-80?80?89×4?159×4.5?505?505?560?560?FPB-100?100?108×4?219×6?555?555?600?645?FPB-125?125?133×4.5?273×8?615?615?670?720?FPB-150?150?159×4.5?325×8?665?665?735?800?FPB-200?200?219×6?377×9?940?940?1015?1100?FPB-250?250?273×8?480×10?1030?1030?1150?1265?FPB-300?300?325×8?529×10?1295?1295?1430?1545?FPB-350?350?377×9?630×12?1300?1300?1430?1545