A Safety Valve is a critical device used to protect equipment, systems, and people from overpressure by automatically releasing fluid (gas or liquid) when pressure exceeds a preset limit. It is a fail-safe mechanism widely used in various industries.

• Body: Houses the valve and fluid flow path.
• Spring: Applies force to keep the valve closed under normal pressure.
• Disc: The sealing element that prevents leakage.
• Nozzle: Directs the flow of fluid during operation.
• Adjusting Screw: Allows setting of the desired pressure release level.

The valve remains closed under normal operating pressure due to the spring force. When the system pressure exceeds the preset limit, it overcomes the spring force and lifts the disc, allowing the excess pressure to escape. Once the pressure normalizes, the spring pushes the disc back to seal the valve.

• Spring-Loaded Safety Valve: Uses a spring mechanism for pressure regulation.
• Pilot-Operated Safety Valve: Uses an auxiliary pilot valve to control the main valve.
• Balanced Safety Valve: Includes bellows or diaphragms to mitigate backpressure effects.
• Thermal Safety Valve: Specifically designed to release pressure caused by thermal expansion.

• Oil and Gas: Prevents pressure buildup in pipelines and storage tanks.
• Boilers and Pressure Vessels: Protects against dangerous overpressure.
• Chemical and Petrochemical: Ensures safety in handling volatile materials.
• Pharmaceuticals and Food: Ensures compliance with hygiene standards.