A fluorine-lined diaphragm valve is designed for managing corrosive media in industries such as chemical processing, pharmaceuticals, and water treatment. The fluorine lining provides resistance to chemical corrosion, making it suitable for applications with harsh substances. The valve uses a flexible diaphragm to separate the process media from its internal components, ensuring reliable sealing and preventing contamination. Available in different sizes and pressure ratings, it offers dependable performance and effective flow control, making it a practical choice for a range of industrial applications.
| Name/Material | WCB | CF8 | CF3 | CF8M | CF3M |
| Body | WCB | CF8 | CF3 | CF8M | CF3M |
| Diaphragm | EPDM+FEP/PFA | EPDM+FEP/PFA | EPDM+FEP/PFA | EPDM+FEP/PFA | EPDM+FEP/PFA |
| Lined | FEP / PFA / PO / PTFE | ||||
| Seat | PTFE / RPTFE | ||||
| Bolt/Nut | B7/2H | B8/8 | B8/8 | B8M/8M | B8M/8M |
| Design&Manufacture Standard | GB/T12235 | API 6D | ||
| FTF Dimension Standard | HG/T3704, GB/T12221 | ASME B16.10 | ||
| Flange standard | HG/T20592, GB/T9119 | ASME B16.5, JIS B2220 | ||
| Inspection & Test Standard | HG/T13927, JB/T9092 | API 598 | ||
| Normal Diameter | DN15~DN350 | 1/2”~14” | ||
| Normal Pressure | 1.0MPa | 1.6MPa | 150LB | |
| Test pressure | Shell Test | 1.5MPa | 1.5MPa | 1.5MPa |
| High Pressure Test | 1.1MPa | 1.1MPa | 1.1MPa | |
| Low Pressure Test | 0.6MPa | 0.6MPa | 0.6MPa | |
| Temperature Range | FEP:-29℃~120℃, PFA:-29℃~180℃, PTFE:-29℃~150℃ | |||
| Applicable Medium | Strong corrosion medium: Hydrochloric acid, Nitric acid, Hydrofluoric acid, Liquid chlorine, Sulfuric acid and Aqua regia etc. | |||
| DN (mm | PNS (Inch) | L | D | D1 | D2 | f | b | Z-Φd | Do | H |
| PN1.0MPa/1.6MPa | ||||||||||
| 15 | 1/2 | 125 | 95 | 65 | 45 | 3 | 15 | 4-14 | 120 | 120 |
| 20 | 3/4 | 135 | 105 | 75 | 55 | 3 | 17 | 4-14 | 120 | 120 |
| 25 | 1 | 145 | 115 | 85 | 65 | 3 | 17 | 4-14 | 160 | 130 |
| 32 | 1-1/4 | 160 | 140 | 100 | 75 | 3 | 19 | 4-18 | 160 | 135 |
| 40 | 1-1/2 | 180 | 150 | 110 | 85 | 3 | 19 | 4-18 | 180 | 160 |
| 50 | 2 | 210 | 165 | 125 | 100 | 3 | 21 | 4-18 | 200 | 165 |
| 65 | 2-1/2 | 250 | 185 | 145 | 120 | 3 | 21 | 4-18 | 250 | 200 |
| 80 | 3 | 300 | 200 | 160 | 135 | 3 | 21 | 8-18 | 280 | 220 |
| 100 | 4 | 350 | 220 | 180 | 155 | 3 | 23 | 8-18 | 300 | 275 |
| 125 | 5 | 400 | 250 | 210 | 185 | 4 | 24 | 8-18 | 320 | 335 |
| 150 | 6 | 460 | 285 | 240 | 210 | 4 | 26 | 8-23 | 350 | 380 |
| 200 | 8 | 570 | 340 | 295 | 265 | 4 | 26 | 8/12-23 | 450 | 500 |
| 250 | 10 | 680 | 395 | 350 | 320 | 4 | 28 | 12-23/26 | 500 | 575 |
What are the Diaphragm Valve Applications?
Fluorine-lined diaphragm valve is a valve with a truncation function in the form of a diaphragm. Its opening and closing parts are composed of a steel flap and a diaphragm made of soft materials (rubber and fluorine plastic composite), and the inner cavity of the valve body is separated from the inner cavity of the valve cover to achieve the purpose of truncating the medium in the tube.
The fluorine lining protects the valve against highly corrosive chemicals, making it ideal for handling aggressive fluids.
Fluorine-lined valves can withstand both high and low temperatures, ensuring reliable performance in extreme conditions.
The lining increases the valve's lifespan by providing a protective barrier against wear and chemical attack.
The fluorine lining prevents chemical reactions with the valve body, ensuring process purity and reducing contamination risks.
These valves require minimal maintenance due to their robust design and resistance to corrosion and chemical damage.
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