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  1. Safety valve - Wikipedia

  2. Types of Safety Valve - Spirax Sarco

  3. How Do Safety Valves Work? Everything you need to know - Arpco Valves

  4. How do safety valves work? - NABIC Valves

  5. Safety Valve Types and Working Principle | Tameson.com

  6. Safety Valve 101 - North American Safety Valve Industries, Inc.

  7. Safety valves: what they are, components, and how they work

  8. Water safety valve, Water safety relief valve - All industrial ...