What is a vacuum valve?what's the difference between safety relief.
Oct 29, 2019| A vacuum valve is a valve whose operating pressure is lower than the standard atmospheric pressure.The safety valve is a special valve that the opening and closing parts are in a state of constant closure under the action of external force, and when the medium pressure in the equipment or pipeline rises beyond the specified value, it can prevent the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium outside the system.Safety valve belongs to automatic valve, mainly used in boilers, pressure vessels and pipelines, control pressure does not exceed the specified value, personal safety and equipment operation plays an important role in protection.The injection relief valve must undergo a pressure test before it can be used.
Vacuum valves are a classification of relief valves.