Wholesale Wafer PTFE Fully Lined Butterfly Valve
Basic Info
ITEM | Standard |
Design | EN593 | API609 |
Face to Face | EN558 | ISO5752 | API608 | BS5155-4 |
Top Flange | ISO5211 |
Flange Drilling | PN6 | PN10 | PN16 | ASME B16.5 CL150 | JIS 10K |
Pressure Rating | PN6 | PN10 | PN16 | PN25 | CL150 | JIS 10K |
Tightness Test | ISO5208 | API598 | EN12266-1 |
Compare to the EPDM Seat butterfly valve, the PTFE lined butterfly valve has some more advantages.
- Corrosion resistance: PTFE fully lined butterfly valve has excellent corrosion resistance to various corrosive liquids, including strong acids, strong alkalis, etc.
- Temperature Range: PTFE fully lined butterfly valve can withstand higher temperatures than EPDM,while It has a temperature range of approximately -250°C to +260°C (-418°F to +500°F)..
- Versatility: PTFE is also called “Plastic King” in China, so it is suitable for different types of media, whether it is corrosive or non-corrosive fluid.
- Low Friction: PTFE has a low coefficient of friction, reducing wear on valve components, as a result, it can increases service life and reduces maintenance.
- Universal Sealing Material: PTFE is a universal sealing material, as it is compatible with various flanges and gaskets.
Paraments of PTFE Fully Lined Butterfly Valve
![drawing-of-double-stem-butterfly-valve](https://zfavalves.com/wp-content/uploads/2024/06/drawing-of-double-stem-butterfly-valve.webp)
SIZE | L | H1 | H2 | B | ø2 | T*T | H |
DN50 | 43 | 134 | 68 | 100 | F05 | 9*9 | 25 |
DN65 | 46 | 145 | 78 | 120 | F05 | 9*9 | 25 |
DN80 | 46 | 150 | 80 | 140 | F05 | 9*9 | 25 |
DN100 | 52 | 160 | 110 | 160 | F07 | 11*11 | 25 |
DN125 | 56 | 178 | 130 | 190 | F07 | 14*14 | 25 |
DN150 | 56 | 197 | 140 | 220 | F07 | 14*14 | 25 |
DN200 | 60 | 239 | 175 | 277 | F10 | 17*17 | 30 |
DN250 | 68 | 278 | 215 | 330 | F10 | 22*22 | 30 |
DN300 | 78 | 315 | 250 | 380 | F12 | 22*22 | 30 |
DN350 | 78 | 355 | 255 | 440 | F12 | 22*22 | 30 |
Manufacture Process of Butterfly Valve
![manufacture process](https://zfavalves.com/wp-content/uploads/2023/12/manufacture-process-2.webp)
Certificates
![certificates wras of zfa valve](https://zfavalves.com/wp-content/uploads/2023/11/certificates-wras.webp)
WRAS
![](https://zfavalves.com/wp-content/uploads/2023/08/CE-728x1030.webp)
CE
![](https://zfavalves.com/wp-content/uploads/2024/02/ISO9001-728x1030.webp)
ISO 9001
![EAC Russia of ZFA valve](https://zfavalves.com/wp-content/uploads/2024/02/EAC-728x1030.webp)
EAC Russia