Safety Valve

Safety Valve

A safety valve is a special valve that remains normally closed and automatically opens under external force to discharge media when the pressure inside equipment or pipelines exceeds a specified limit, thereby preventing overpressure. As an automatic valve, it is primarily used on boilers, pressure vessels, and pipelines to ensure pressure does not exceed safe limits, providing critical protection for personnel and equipment operations.

Product Features

  • National Standard Reference: GB/T 12241-2021, GB/T 12242-2021, GB/T 12243-2021, TSG 92-2026
  • ASME Reference Standards: ASME BPVC Section-I, Section-VIII Div.1/2, ASME PTC-25
  • API Reference Standards: API RP-520 Part1/2, API RP-521, API STD-526, API STD-527
  • Reference standards for special structural safety valves: GB/T 28778-2023, GB/T 40011-2021, GB/T 46630-2025, API 2000

Technical Specifications

Primary ApplicationsBoilers, pressure vessels, and pipelines
Valve TypeAutomatic Valves
FeaturesKeep pressure within specified limits.
Reference StandardsGB/T 12241, ASME BPVC, API STD-526

Related Standards

GB/T 12241-2021GB/T 12242-2021GB/T 12243-2021TSG 92-2026ASME BPVCAPI STD-526