CO31 連接器將密封管道或管子的外徑，密封范圍為 0.100 至 0.510”（2.5 至 13 mm），增量范圍或內管螺紋密封應用。
CO31 ID 密封范圍：
AA = 0.100" - 0.180" (2.5 mm – 4.6 mm)
AB = 0.180" - 0.260" (4.6 mm – 6.6 mm)
AC = 0.260" - 0.340" (6.6 mm – 8.6 mm)
AD = 1/8" NPT
AE = 0.340" - 0.420" (8.6 mm – 10.7 mm)
AF = 0.420" - 0.510" (10.7 mm - 13 mm)
僅身體
CO31 ID 密封范圍：
AA = 0.100" - 0.180" (2.5 mm – 4.6 mm)
AB = 0.180" - 0.260" (4.6 mm – 6.6 mm)
AC = 0.260" - 0.340" (6.6 mm – 8.6 mm)
AD = 1/8" NPT
AE = 0.340" - 0.420" (8.6 mm – 10.7 mm)
AF = 0.420" - 0.510" (10.7 mm - 13 mm)
僅身體
