Tank Repair And Service.. HELP!

[MiE]

I just want to repair the tank valve. Need information on proper tools to use.

Planning to take out the tank valve, clean inside of the tank. I need info on proper technique..

---------- Post added July 2nd, 2014 at 08:28 PM ----------

What do you want to repair on a tank?

I want to change the tank valve, burst disk, knob. Also want to clean inside of the tank. Need information on proper tools and technique..

 

[knotical]

Documents such as these:

http://www.google.com/url?sa=t&rct=...=-Fc77UmeOZx-ipkxMdIlIA&bvm=bv.70138588,d.aWw

http://www.scubaengineer.com/pictures/valves/thermo/thermo_maintenance_manual.pdf

http://www.aqualung.com/militaryandprofessional/product_information/j-k-twin_manual_07-07.pdf

http://www.harrisonvalve.com/uploads/product/45/pdf.pdf

might answer some of your questions about valves.

 

[lemke]

Soda blasting works without "work-hardening" the metal.

 

[kwinter]

The only special tools you need to work on valves are a notched screwdriver to remove the handle ( you can make one yourself or buy one cheaply) and a torque wrench. And some people don't bother with the torque wrench.

When servicing a valve, replace the seat, burst disc, and all soft parts like o-rings, handle washer, and Teflon packings. Other parts that can be replaced if damaged are the stem, spring and handle, but those are rare. I service valves every 5 years when the tank is hydro tested. Otherwise it's only if a problem develops.



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