Vacuum relief valve manufacturers
Vacuum relief valves protect tanks, vessels and piping systems from collapse or structural damage caused by internal vacuum conditions. When the internal pressure falls below a set value, the valve opens to allow air or inert gas to enter, restoring safe pressure levels. These valves are commonly installed on storage tanks, process vessels and transfer systems where temperature changes, pump-out conditions or steam condensation can generate vacuum.
Vacuum relief valves are selected based on set pressure, required venting capacity, sealing requirements and compatibility with the stored product or blanket gas. Materials and valve design must ensure reliable operation, minimal leakage when closed, and resistance to corrosion or product contamination.