Question

A pressure relief valve opens when a pressure level is reached in order to release the pressure, thus preventing damage to the system or other areas. Types of pressure relief valves are typically used in boilers, pressure vessels and other related systems. If a pressure relief valve is used in a tank where the gas pressure in the tank acts on a piston with a diameter of 20 mm. How much spring force must be applied to the piston to hold the valve closed under a pressure of 5.3 MPa? (Answer must be in kN)  

Answer 1

using given pressure and calculating pressure force on piston face we can calculate spring force requirwd to hold piston at closed position

for any doubts please write to me in comments i ll respond ASAP