Fluorine-lined check valve
The Fluorine-Lined Check Valve is a corrosion-resistant non-return valve designed for safe and reliable control of highly corrosive fluids. The valve body and internal flow passages are lined with high-performance fluorine materials such as FEP, PTFE, or PFA, providing excellent chemical resistance and preventing direct contact between the medium and the metal valve body.
Fluorine-lined check valve
With a reliable check mechanism, low flow resistance, and excellent sealing performance, this valve effectively prevents reverse flow and protects pipelines, pumps, and process equipment. It is especially suitable for chemical, pharmaceutical, petrochemical, and other industries where aggressive media handling is required.
We provide professional OEM manufacturing and customized solutions to meet different industrial requirements, including:
Our Fluorine-Lined Check Valves are manufactured under strict quality management systems and comply with international valve industry standards. Available certifications include:
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Fluorine-Lined Check Valve |
| Valve Type | Check Valve / Non-Return Valve |
| Structure Type | Swing Type / Lift Type / Wafer Type |
| Body Material | Carbon Steel / Stainless Steel / Cast Steel |
| Lining Material | FEP / PTFE / PFA Fluoropolymer |
| Disc Material | Fluorine Lined Stainless Steel |
| Seat Material | PTFE / FEP / PFA |
| Nominal Size | DN15–DN500 (1/2"–20") |
| Pressure Rating | PN10–PN16 / Class 150 (Customized Available) |
| Connection Type | Flange / Wafer / Lug Type |
| Applicable Temperature | -40°C to +180°C (Depending on Lining Material) |
| Applicable Medium | Strong Acids, Alkalis, Solvents, Corrosive Liquids |
| Sealing Performance | Tight Shut-Off, Low Leakage |
| Flow Direction | One-Way Flow |
| Design Standard | API 594 / DIN / ANSI / GB Standards |
| Testing Standard | API 598 / EN 12266 |
| Installation Method | Horizontal or Vertical Installation (According to Type) |
| Corrosion Resistance | Excellent Chemical Resistance |
| Maintenance | Low Maintenance Design |
| Service Life | Long-Term Reliable Operation |
Industry Applications
The Fluorine-Lined Check Valve is widely used in industries requiring high corrosion resistance and reliable backflow prevention.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
RELATED PRODUCTS
