Sherin Achenkunju
Industrial
- May 26, 2021
- 11
Can someone help me to choose the right thread locker/sealant suitable for the 6000psig Hydrogen refueling line? The connections in this Hydrogen line are TIG welded (tubes to tubes)and Tube to devices (gas booster, storage cylinder, control valves) are parker triple-lok fittings. But still, NPT threaded connections are not avoidable in some cases. As this line involves tremendous vibration when re-fueling starts and ends, we are going to use sealant in NPT threaded joints. The supplier of the fittings suggested using a combination of Teflon tape and Loctite 542. But we are not sure as we don't have much experience in Hydrogen service lines. Hence I was seeking help from others, somebody instructed us to take care of the Autoignition temperature of Hydrogen (585 degree Celcius). Is anybody there to help me?