Answer :
Final answer:
Closing the inlet or outlet stop valve of a relief valve while the equipment it is protecting is in service is generally not permissible.
Explanation:
Relief valves are critical safety devices designed to protect equipment from overpressure. Closing the stop valves at the inlet or outlet of a relief valve disrupts its ability to function as intended. Relief valves are set to open at a predetermined pressure to release excess pressure and prevent equipment damage. Closing these valves could result in the relief valve being rendered ineffective, leading to potential overpressure situations.
It is crucial to follow industry standards, manufacturer guidelines, and safety regulations when dealing with relief valves. Closing the inlet or outlet stop valves should only be done for maintenance or testing purposes, following proper procedures, and ensuring that the equipment is safely taken out of service before any valve closure. Safety considerations must always take precedence to prevent hazards and ensure the reliable operation of pressure relief systems.
Yes this would make sense because (they) need to flow and have control
