Question regarding the relief valve
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May I ask, what is the concept of a self-protection valve? Is it a special type of valve, or just an ordinary valve that serves a self-protection function? When is a self-protection valve needed, and how is self-protection achieved? I hope experienced sea travelers can provide more explanations.
Are you referring to the check valve? Under certain operating conditions, it is required that the valve maintain its original opening degree in special situations, such as when the air supply is interrupted. This requires adding a check valve to maintain it in its original state.
A safety valve is a special type of valve designed based on the process conditions of a particular installation; its function is to ensure the safety of that installation in case of an accident. In such situations, it opens or closes according to the requirements of production, with its operating state being determined by logic rules related to production safety
Primarily, the valve position remains unchanged in the event of a power loss; the choice of valve depends on the process requirements