Product Name：NFJS Net-Oriented Flexible Joint Sub
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Description：
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Flexible joint sub are used in horizontal well logging to make the downhole tool string curve in any direction so that it can move smoothly.
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FunctionTechnical specifications
Flexible joint sub are used in horizontal well logging to make the downhole tool string curve in any direction so that it can move smoothly.
Working Temperature: | -25 -- 175 ℃ |
MAX pressure: | 140MPa |
Storage Temperature: | -40--70 ℃ |
shock | 100g 3D ( 11ms ) |
Vibration: | 7.5g 2D ( 10 ～ 60Hz ) |
curve feature: | Min curvature radius ≥ 6 meters |
Max Tension: | 45000 Kg |
Electrical connectivity requirements: Measured with a multimeter, all 31-core wires have a resistance value of <0.4Ω | Insulation resistance under NPT: Use a 500VDC tramegger to check the insulation resistance between the pin or socket and the housing, which should be no less than 200MΩ |
High temperature insulation resistance: After heating to 175 °C in a high temperature box and keeping warm for one hour, use a 500VDC tramegger to check the insulation resistance between the pin or socket and the housing. It should be no less than 100MΩ |
OD: | 98mm |
Length: | 1756mm |