Direct-loaded spring safety valves are a type of pressure relief valve designed to protect pressure vessels and systems from overpressure conditions. According to “ASME Section VIII”, these valves operate by using a spring mechanism to keep the valve closed until the system pressure exceeds the set limit, at which point the valve opens to release excess pressure.this valve have two types of conventional and balanced bellows type
1.Spring-Loaded Mechanism: The valve remains closed under normal operating conditions and opens when the pressure exceeds the set point.
2.Compliance with ASME Section VIII*: These valves meet the requirements for pressure vessel applications.
3.Set Pressure Tolerance: Typically within ±3% of the set pressure.
4.Materials: Often made of stainless steel, ductile iron, and PTFE for durability and reliability.
5.Backpressure Considerations: The design accounts for backpressure effects to ensure stable operation.
