Specifications
API Type AJ safety jointSafety tool for connecting pipes
Used for drilling, fishing, tubing, washover and test operation
API Type AJ safety joint
The safety joint type AJ is an essential safety tool for connecting the pipes in the well. It is used for drilling, fishing, tubing, washover and test operation. Engineered to withstand internal and external pressure, it also features in coarse threads that resist wedging or loosening of the tool during operation. The torque may be transmitted in either left-or right-hand direction.
Specification Series and Performance Parameters
Type | O.D. mm(in) | Connection | I.D. mm(in) | Max. Working Tension kN(kIbf) | Max. Working Torque kN•m(kIbf•ft) |
AJ-C 86 | 86(3 3/8) | NC26(23/8IF) | 44( 147/64) | 925(208) | 6.34(468) |
AJ-C95 | 95(3 3/4) | 27/8REG | 32(1 1/4) | 1370(308) | 10.15(749) |
AJ-C105 | 105(4 1/8) | NC31(27/8IF) | 54(1 1/8) | 1340(301) | 12.70(937) |
AJ/S-J73(UP) | 105(4 1/8) | 27/8TBG 27/8UPTBG | 58(2 9/32) | 1340(301) | 12.70(937) |
54(1 1/8) | |||||
AJ-C108 | 108(4 1/4) | 31/2REG | 38(1 1/2) | 2005(451) | 13.7(1010) |
AJ-C121 | 121(4 3/4) | NC38(31/2IF) | 57(2 1/4) | 1515(341) | 17.65(1302) |
68(2 4 3/64) | |||||
AJ-C140 | 140(5 1/2) | 41/2REG | 57(2 1/4) | 2560(576) | 27.35(2017) |
AJ-C146 | 146(5 3/4) | NC46(4IF) | 83(3 17/64) | 2255(507) | 30.70(2264) |
AJ-C152 | 152(5 63/64) | NC46(4IF) | 83(3 17/64) | 2130(479) | 34.05(2511) |
AJ-C156 | 156(6 9/64) | NC50(41/2IF) | 95(3 3/4) | 3075(691) | 35.10(2588) |
AJ-C159 | 159(6 1/4) | NC50(41/2IF) | 80(3 5/32) | 3110(699) | 38.90(2869) |
95(3 3/4) | |||||
AJ-C171 | 171(6 47/64) | 51/2REG | 70(2 3/4) | 3710(834) | 54.45(4015) |
AJ-C178 | 178(7) | 51/2FH | 92(3 5/8) | 3385(761) | 57.00(4204) |
102(4 1/64) | |||||
AJ-C197 | 197(7 3/4) | 65/8REG | 89(3 1/2) | 3650(821) | 82.75(6103) |
AJ-C203 | 203(8) | 65/8REG | 127(5) | 2275(511) | 32.00(2360) |
AJ-C229 | 229(9) | 75/8REG | 101(3 31/32) | ||
AJ-C254 | 254(10) | 85/8REG | 121(4 3/4) | ||
AJ-C115 | 115(4 17/32) | 31/2TBG | 72(2 53/64) | 600(135) | |
AJ-J165 | 165(6 9/64) | NC50 | 83(3 17/64) | 3360(755) | 48.90(3606) |
AJ/S-J73(DP) | 105(4 1/8) | 27/8DP | 47(1 27/32) | 1365(307) | 11.90(878) |
AJ/S-102 | 127(5) | 4UPTBG | 88(3 15/32) | 658(148) | - |