（VSSJA）AF型法蘭(lan)(lan)松(song)(song)(song)(song)套(tao)補償(chang)接頭(tou)(tou)又稱(cheng)作法蘭(lan)(lan)式松(song)(song)(song)(song)套(tao)伸(shen)縮(suo)接頭(tou)(tou)、法蘭(lan)(lan)松(song)(song)(song)(song)套(tao)伸(shen)縮(suo)節。法蘭(lan)(lan)松(song)(song)(song)(song)套(tao)伸(shen)縮(suo)接頭(tou)(tou)由本體、壓蓋(gai)(gai)、密(mi)封(feng)圈和緊固件組成。它采(cai)用和壓蓋(gai)(gai)松(song)(song)(song)(song)套(tao)伸(shen)縮(suo)接頭(tou)(tou)相同(tong)的密(mi)封(feng)原(yuan)理，連接方(fang)式一端為(wei)法蘭(lan)(lan)連接，另一端為(wei)承插(cha)連接，適(shi)合閥門等設備(bei)(bei)與管道(dao)(dao)的連接。連接的同(tong)時能補償(chang)管道(dao)(dao)的軸向位(wei)移，從而保護閥門等設備(bei)(bei)。