Product Details

Safety Joint

Overview: Safety joint is widely used for the strings of drilling, well workover, testing, cleaning, fracturing, acidification, etc. String in operation is able to pass on the torque and the axial load and to circulate high-pressure liquid. If the tool at the bottom of the string in operation is stuck, release it from the safety joint and pull out the upper string.

Product structure: Safety joint is made up of the upper joint, the lower joint and the O-type seal ring.

This product is desire and manufactured in accordance with the petroleum People’s Republic of China Safety Joint (SY/T 5067-2008).

Major technical parameters and dimensions:

Spec. & Model	OD (mm)	Code of Connector Thread	Bore Diameter (mm)	Yield Tension kN	Yield Torque kN.m	Max Operating Pressure kN	Max Operating Tonque kN·m
AJ-C86	86	NC26	44	1390	9.55	925	6.35
AJ-C121	121	NC38	68	2275	26.50	1515	17.65
AJ-C159	159	NC50	95	4665	58.40	3110	38.90
AJ-C178	178	5 ¹/₂ FH	102	5080	85.50	3385	57.00
AJ-C197	197	6 ⁵/₈ REG	89	5480	124.10	3650	82.75
AJ-C203	203	6 ⁵/₈ REG	127	3415	48	2275	32.00