Fluorine Lined Safety Valve, API 526, A216 WCB, DN50 x DN80

Product Name: Fluorine Lined Safety Valve, Bellows Sealed
Standard: API 526
Body Material: ASTM A216 WCB
Lining: Fluorine Lined
Size: DN50 x DN80, 2 Inch x 3 Inch
Pressure: PN16, Class 150 LB
End Connection: RF Flanged

The Fluorine Lined Safety Valve is designed primarily for high-pressure equipment handling highly corrosive media, such as those in the chlor-alkali chemical industry and hydrochloric acid applications. This safety valve is used in pressure vessels and automatic pressure release devices on pipelines, offering exceptional resistance to corrosion. Critical components are fully lined with tetrafluoroethylene (PFA, FEP) material, ensuring resistance to hydrochloric acid and other aggressive chemicals. The valve body undergoes chemical treatment through ion pulse nitriding or is lined with Teflon to enhance its corrosion resistance. It features dual seals comprising corrosion-resistant fluorine bellows and a fluorine rubber O-ring to effectively prevent external leakage. This valve fully complies with national sealing performance standards, making it a reliable replacement in applications involving hydrochloric acid, sulfuric acid, and other corrosive chemicals. The valve's internal components, including the valve body, core, disc, and stem, are lined with PFA or FEP materials, providing robust protection against corrosive environments.

Technical Specifications

Normal Size Range: 1-8 Inch (DN25-DN200)
Normal Pressure Rating: PN10, PN16, Class 150 LB
Design and Manufacture: GB/T 12243-1989, API RP 520, 521, API 526, API 527
Face to Face (End to End): GB/T 14087, JB/T 6441, JB/T 2203, JB/T 9624, JB/T 53170
Flanged Connection: ASME B16.5, DIN 2543-2545, EN 12627
Test and Inspection: API 598, DIN 3230, MSS SP-117
Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex or Other Specials
Working Medium: Hydrochloric acid, strong corrosive media
Ends Connections: RF Flanged