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By certification 
Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level surface knuckle joint manufacturers and suppliers, with professional factory, we are able to produce API and oilfield surface knuckle joint, welcome to contact us.
1.Introduction
The knuckle joint is used for quick connection to the coiled tubing, the coiled tubing can be wrapped on the drum easily by the knuckle structure, with small OD and large loading slip structure, the tools is reliable.
2.Feature and benefits
*Robust design, simple structure for easy installation
*Elastic slip design, the tools is disassembled easily
*Large loading, with No-go profile to prevent tubing deform
3.Application
For coiled tubing quickly connection when the surface equipment will load tension.
Spec.（in） |
Max. OD（mm） |
Length（mm） |
Tension strength（kn） |
1.250 |
31.5 |
260.0 |
60.0 |
1.500 |
38.0 |
268.0 |
80.0 |
1.750 |
44.0 |
280.0 |
80.0 |
2.000 |
50.5 |
280.0 |
100.0 |
2.375 |
60.0 |
290.0 |
100.0 |
2.875 |
73.0 |
300.0 |
120.0 |
3.500 |
88.5 |
350.0 |
150.0 |
