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Safety Valves
Automatic pressure-relieving devices designed to protect pressure vessels, boilers, and other pressurized systems from over-pressurization by releasing excess fluid (gas or liquid) when a set pressure is exceeded.
Types of Safety Valves
Spring-Loaded Safety Valves: The most common type, where a spring holds the disc against the seat until the system pressure overcomes the spring force.
Conventional: Directly actuated by system pressure.
Balanced Bellows: Used when back pressure variations are significant.
Pilot-Operated Safety Valves (POSV): Use a small pilot valve to control a larger main valve. Offer more precise control and can operate closer to the set pressure.
Power-Actuated Safety Valves: Activated by an external power source (e.g., solenoid) for specific control requirements.
Buckling Pin Relief Valves: Use a precisely designed buckling pin that buckles at a specific pressure.
Rupture Discs (Bursting Discs): Non-reclosing pressure relief devices that rupture at a pre-determined pressure. Often used in conjunction with safety valves.
Applications in Various Industries:
Oil & Gas: Protecting pipelines, pressure vessels, separators.
Chemical & Petrochemical: Chemical reactors, storage tanks, heat exchangers.
Power Generation: Boilers, steam lines, turbines.
Pharmaceuticals: Bioreactors, processing vessels.
Food & Beverage: Fermenters, storage tanks.
HVAC & Refrigeration: Chillers, pressure vessels.
Technology:
Precise spring calibration, advanced sealing technologies, flow capacity (API sizing), blowdown control, high-temperature/high-pressure capabilities, corrosion resistance, remote monitoring, integrated diagnostics.
Material Selection Considerations:
FAQ's
What is the safety valve function? The Safety Valve's aim is to protect people and property in the event of a failure to regulate device stresses, i.e. it is the last line of defense before complete failure.
What is the difference between a relief valve and a safety valve? Relief valves are used to regulate pressure in a system and are most commonly found in fluid or compressed air systems. The opening of these valves is proportional to the increase in system pressure. Protection valves, unlike relief valves, open automatically and entirely to prevent a catastrophe rather than to regulate a system's pressure.
How many types of safety valves are there? The diaphragm and piston forms of pilot-controlled safety valves are the most common. The diaphragm type is usually only available for low-pressure applications, and it generates a proportional type operation, which is common in liquid-system relief valves.
How much does a Safety Valve cost? The average cost for a Safety Valve is between Rs819 and Rs27935 available at Indian Trade Bird.
What is the function of safety valve? The primary purpose of a safety valve is the protection of life, property, and the environment. A safety valve is designed to open and relieve excess pressure from vessels or equipment and to reclose and prevent the further release of fluid after normal conditions have been restored.
What is Safety Valve? A safety valve is a valve that acts as a fail-safe. An example of a safety valve is a pressure relief valve, which automatically releases a substance from a boiler, pressure vessel, or other systems when the pressure or temperature exceeds preset limits.
