Safety Valve: An Overview

A safety valve is a crucial safety device used in industrial systems to prevent dangerous pressure build-ups. It’s installed in machines like boilers or pipelines to prevent them from getting too much pressure. When the pressure inside the machine gets too high, the safety valve opens up automatically. This lets out some of the extra pressure, kind of like letting air out of a balloon when it’s too full. Once the pressure is back to normal, the safety valve closes again, keeping everything safe and working properly.

• Purpose: Safety valves are installed in systems where pressure buildup could lead to catastrophic failure, such as boilers, pressure vessels, and pipelines. They operate by releasing excess pressure in a controlled manner to prevent damage or rupture.
• Operation: When the pressure inside the system exceeds a predetermined setpoint, the safety valve automatically opens to discharge fluid or gas. This action reduces the pressure to a safe level. Once the pressure decreases, the valve closes to restore normal operation.
• Types: Safety valves come in various types, including spring-loaded, pilot-operated, and thermal safety, steam safety, pressure safety , balanced safety. Each type operates differently but serves the common purpose of pressure relief.
• Applications: Safety valves are used across industries such as oil and gas, petrochemical, chemical processing, power generation, and manufacturing. They are critical components in equipment like boilers, pressure vessels, storage tanks, and pipelines.
• Regulations: Safety valves must comply with strict regulatory standards and codes to ensure their proper design, installation, and maintenance. Compliance with these regulations is essential for ensuring safety and reliability.

Advantages :

• Protection: Safety valves provide protection to equipment, processes, and personnel by preventing overpressure situations that could lead to catastrophic failure or accidents.
• Reliability: They offer reliable operation, automatically opening to relieve excess pressure when needed and closing once the pressure returns to safe levels.
• Versatility: Safety valves are versatile and can be used in various industries and applications, including boilers, pressure vessels, pipelines, and storage tanks.
• Compliance: They help industries meet regulatory standards and codes by ensuring proper pressure relief measures are in place to maintain safety and compliance.
• Cost Savings: Safety valves help prevent costly equipment damage, downtime, and potential liabilities associated with overpressure incidents.

Description:

• Body Material – Cast Iron and Steel (A216 WCB, WCC, LCB, LCC,WC6, WC9), Ductile Iron, Stainless Steel [SS316, SS304, SS316L,SS904L, CF8, CF8M, F304, F316, F31L, F51, F3, F55, F91] , WCB, WC6,SS304, SS316, DUPLEX STEEL.
• Class – 150 – 2500
• PN 10 – PN 450
• Size – ½ – 24”
• Ends- Butt welded, Socket welded, Flanged, Threaded