.常用法兰名称中英文对照表钢制管 法兰 steel pipe flange滑套法兰 SO slip-on flange对焊法兰 WN welding neckflange承插焊法兰SW socket welding flange螺纹法兰 Th threaded flange整体法兰IF integral pipe flange松套法兰lap joint flange (LJF)松套带颈法兰loose hubbed flange法兰盖 BL blind flange焊接板式法兰welding plate flange孔板法兰orifice flange异径法兰reducing flange对焊环welding neck collar平焊环welding-on collar翻边lapped pipe end法兰密封面flange facing;.全平面 FF flat face突面 RF raised face凸面 M male face凹面 FM female face榫面 T tongue face槽面 G groove face环连接面 RJ ring joint face;.