Thursday 28 August 2014

What are difference b/w 1. Gate & Globe Valve 2.Safety & Relief Valve ?

Q.What are difference b/w 
1. Gate & Globe Valve
2.Safety & Relief Valve


Ans. safety valve have blow back ability and relief valve just blow at its set pressure and sit back to its working pressure , relief valve used on liquid fluids

Gate valves used for isolation purpose and globe v/v used for regulation purpose. Safety v/v & relief v/v work on same principal but difference is only in fluid handled. Liquids handled by relief vv & only steam by safety.

Safety valves have larger discharge dia while Relief valve has the same dia of both sides.

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