What is the difference between Pressure Safety Valve and Pressure Relieve Valve

What is the difference between Pressure Safety Valve and
Pressure Relieve Valve, in what condition we prefer choose
Pressure Safety Valve rather than Pressure Relieve Valve?
and vice versa

Question Posted / tyo

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What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition ..

Answer / abhishekk

pressure safety valve is automatic relieves the static
pressure on a gas..usually it opens completelly ..while
relief valve relieve the static pressure in a liquid filled
,its opens proportionally with increasing pressure...
PSV is used in case of gas and PRV is used in liquid.

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What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition ..

Answer / manish dhamani

Relief valve (RV) - A pressure relief valve is a safety
device that relieves overpressure in a vessel or piping.
an automatic system that relieves liquid pressure above a
pre-set limit and opens propotionally to yhe liquid
pressure.
Safety valve (SV) - an automatic system that relieves gas
pressure above a pre-set limit (e.g., safety valves on
pressure cookers) usually it opens completelly
The difference being that PSVs have a manual lever to
activate the valve in case of emergency.

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