API 617《石油、化學(xue)和氣(qi)體工(gong)(gong)業用(yong)(yong)軸流、離(li)心(xin)壓(ya)縮(suo)機(ji)及膨脹機(ji)-壓(ya)縮(suo)機(ji)》規定(ding)：由于可(ke)能(neng)結(jie)垢，不(bu)允許承(cheng)插(cha)口焊接。用(yong)(yong)于潤滑油、密(mi)(mi)封油或氣(qi)體密(mi)(mi)封操作的輔助接管(guan)，只應使(shi)用(yong)(yong)帶(dai)頸(jing)法(fa)蘭(lan)或承(cheng)插(cha)焊法(fa)蘭(lan)。某工(gong)(gong)程(cheng)壓(ya)縮(suo)機(ji)這些管(guan)道采用(yong)(yong)了承(cheng)插(cha)焊口，運行(xing)后，發生了結(jie)垢堵塞。
