What is the difference between safety valve and relief valve?

Answer Posted / bejoy

safety valve and relief valve
the terms are used interchangeably in the industry..

some differences which i have noted in my company are..
safety valves are connected invariably to the output of a
flow creating equipment(exmple a pump or a compressor)..its
purpose is to protection frm flow restriction ahead(or any
other source of high pressure in the fluid)...
now relief valves are used everywhere where there is the
need for a pressure reduction to a set value..a sort of
pressure control valve(PCV) job can be done by a relief valve..

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