Lined Plug Valve
- Excellent Corrosion Resistance: All flow surfaces lined with fluorine, capable of resisting almost all chemical media erosion
- Fast Opening/Closing: Plug structure requiring only 90-degree rotation to achieve full open or full close
- Good Sealing Performance: Precisely machined plug and valve body sealing surfaces for reliable sealing
- Easy Maintenance: Simple structure for convenient maintenance
- Low Flow Resistance: Direct-through plug channel with low fluid resistance
- Long Service Life: Fluoroplastic lining is corrosion-resistant with long service life
Lined Plug Valve is a special valve based on the traditional plug valve, with a layer of fluoroplastic (such as PTFE, FEP, PFA, etc.) lining on the inner surface of flow-contacting components such as the valve body and plug. The closing element of the plug valve is a conical or cylindrical plug with a through-hole, which achieves opening and closing by rotating 90 degrees. This design enables the valve to effectively resist the erosion of corrosive media such as strong acids, strong alkalis, and organic solvents, while maintaining the advantages of plug valves such as rapid opening/closing, good sealing performance, and easy maintenance. Lined Plug Valves are widely used in corrosive medium pipeline systems in industries such as chemical, petrochemical, pharmaceutical, pesticide, and dye.
Technical Standards
| Item | Technical Standard |
|---|---|
| Design and Manufacturing | API 599, ASME B16.34 |
| Structure Length | API 599, ASME B16.10 |
| Flange Dimensions | ASME B16.5, GB/T 9113 |
| Pressure Rating | PN1.0, 1.6, 2.5, 4.0 MPa |
| Operating Temperature | -40℃ to +180℃ |
| Applicable Media | Strong acids, strong alkalis, organic solvents and other corrosive media |
| Valve Type | Straight-through, Three-way |
| Connection Type | Flanged Connection, Wafer Type Connection |
Basic Models
| Model | Type | Features |
|---|---|---|
| X41F | Lined Flanged Plug Valve | Flanged connection with reliable sealing |
| X71F | Lined Wafer Plug Valve | Wafer connection with compact structure |
| X43F | Lined Three-way Plug Valve | Three-way structure for flow direction change |
| X941F | Lined Electric Plug Valve | Electric actuator with automated control |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve Body | Carbon Steel, Cast Steel, Stainless Steel |
| 2 | Plug | Stainless Steel + PTFE/FEP/PFA Lining |
| 3 | Sealing Ring | PTFE, FEP, PFA |
| 4 | Valve Stem | Stainless Steel |
| 5 | Packing | PTFE, Flexible Graphite |
| 6 | Handle | Cast Iron, Cast Steel |
| 7 | Bolts | Stainless Steel |
| 8 | Nuts | Stainless Steel |
No drawing available.
