Carbon Steel Safety Valve, API 526, ASTM A216 WCB, DN50, PN40

Key Specifications / Features

China Carbon Steel Safety Valve Factory produces API 526-compliant full-lift safety valves with a handle for manual operation, constructed from ASTM A216 WCB carbon steel for durability. These 2-inch (DN50) valves are rated for PN40/Class 300 LB pressure and feature threaded ends for easy installation. Ideal for overpressure protection in steam, gas, and oil systems, they ensure reliable performance in power plants, refineries, and industrial piping applications.

A28H type full lift safety valves are designed for use in equipment and pipelines handling media such as water, air, and steam, where the working temperature is below 200°C. The A28Y-P/R type safety valves are specifically engineered for applications involving corrosive media in equipment and pipelines, also with a working temperature limit of below 200°C. These valves are utilized as additional pressure relief devices to ensure safety and prevent overpressure conditions.

Technical Specification

» Product model: A28H, A28Y
» Normal Size Range: 1/2-3 inch (DN15-DN80)
» Normal Pressure Rating: PN10-PN40, Class 150-300 LB
» Materials: ASTM A216 WCB, A351 CF8, CF8M, CF3, CF3M, Brass, Bronze
» Ends Connections: BSP Thread, NPT Thread

Structural Diagram

Main Parts and Materials