VALVE
YOUR LINK HERE:
http://youtube.com/watch?v=qJ9u1NpunvI
Valve is a mechanical device used in piping system for fluid flow isolation or control.There are many type of valves like gate,globe,check,needle, butterfly,ball and safety or relief valves. Valve selection and installation for any system is very important. Failure of valve hampers factory production,it may cause fire and accident • #valve #gajananramchandrameshram
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