Answer / sonam

Valve Reversibility means if the valve is manufactured as
Air To Open,for example,it can be converted into an Air To
Close Valve i.e. its action can be reversed.Such a need
arises when an ATO Valve is manufactured but as per process
requirements it should be ATC.

Answer / hamid (pdoc) inst tech

because the reverse valve it used for safty .in fail safe
condition it( NO) for safty perpose it use foe vent line

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