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  1. JohnSolid1

    Quick help: Fittings and # number ?

    I need quick info; Where could I find dimensions, material req. and other important stuff for manufacturing of few missing pneumatic fittings, that are descripted like this: 3/4" - 1/2" 600# M/F (male/female) 3/4" - 1/2" 600# M/M 1" - 3/4" 600# M/F...
  2. JohnSolid1

    How to change valve under pressure ?

    I would like to thank all for replys. From answers above, the most I like is to inject some kind of gel, and freze it inside of gas line. Now I would like some recomendations what kind of gel, or other medium I could use for this, where can I buy it (I'm located in Europe) and other useful...
  3. JohnSolid1

    How to change valve under pressure ?

    I have 1/2" (male) valve that I have to change under 40 bar pressure !! There is no way to close this part of gas line (natural gas). It's actualy one-direction stop valve in shape of usual bolt with high six-side head. How do I change this valve ? Is there any tool for this operation ...
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