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Double seated ball valves will hold pressure from either end whereas single seated will only hold pressure rating from one end.

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16y ago

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What is Difference between relief valve and safety valve?

Relief valve always position in the suction line in oreder to relief the extra pressure, while safety valve is always placed at discharge line to release excess pressure.I would take that one step further by stating that a " RELIEF VALVE" is one that is "meant" to be lifted off its seat, as opposed to a "SAFETY RELIEF VALVE" which is not!DIFFERENCE BETWEEN RELIEF VALVE AND SAFETY VALVE:1. Releif valve is applicable in the fluid system.safety valve is applicable in the gaseous system.2.Relief valve opening is directly proportional to the pressure rise.Safety valve opening is will happen at after reaching the setpressure.3.Mode of relif vlave line is again connected to the suction.But in the safety valve is just vent-out there is no connection tosuction.


Difference between set pressure and blow-off pressure?

The set pressure is the pressure at which a relief valve starts to open. When the valve is open and relieving, the pressure will be higher or lower than the set pressure, depending on the system and the valve design. That is the blow-off pressure.


What is the difference between a mechanical heart valve versus a biological valve?

mechanical can hold up to life but medication is needed every day for life biological is a more normal life but have to re op. 10- 20 years gl


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