GB/T 12243 Safety Valve, ASTM A216 WCB, DN25, PN16, NPT, BSP

Product Name: GB/T 12243 Safety Valve
Type: Full Lift Threaded Safety Valve
Design Standard: GB/T 12243
Body Material: ASTM A216 WCB, Carbon Steel
Size: DN25, 25 mm, 1 Inch
Pressure: PN16, Class 150 LB
Setting Pressure: 10 bar
End Connection: NPT, BSP Thread
Medium: Steam, Gas

Threaded safety valves are pressure relief valves with screwed inlet or outlet connections, commonly used on compact pressure vessels, compressors, air receivers, water systems, small process skids, utility steam lines and equipment where threaded piping is specified. They are often requested as threaded pressure safety valves, threaded safety relief valves, NPT safety valves, BSP safety valves or 2-inch threaded safety valves.

Technical Specification

» Product model: A22Y

» Normal Size Range: 1/2~2 Inch (DN15~DN50)

» Normal Pressure Rating: CLASS 150 (PN10, PN16)

» Design and Manufacture: GB/T 12243

» Face to face(end to end): JB/T 2203

» Thread connection: ANSI/ASME B1.20.1 (NPT), ISO 228-1 (BSP)

» Test and inspection: API 598, DIN 3230, MSS SP-117

» Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex or Other Specials

» Ends Connections: NPT, BSP Thread

Why threaded connection details matter

A threaded safety valve is not selected only by thread size. The connection form, thread standard, pressure rating, set pressure, required relieving capacity, medium, temperature, material and installation direction all affect whether the valve can protect the equipment correctly.