China Suppliers Factory PTFE-Lined Butterfly Valve for Pharmaceutical Applications - Zero Leakage, High CV Values
- PTFE can be applied to highly corrosive chemical media.
- It adopts a split design, making disassembly and replacement of parts more convenient.
- The upper and lower cover design effectively prevents leakage.
- The product has a wide range of applications: chemical industry, pharmaceuticals, food, papermaking, etc.
| Pressure Test | PN10 | PN16 | |
|---|---|---|---|
| Shell | 15bar | 24bar | |
| Seal | Water | 11bar | 17.6bar |
| Air | 6bar | 6bar | |
| No. | Part Name | Materials | No. | Part Name | Materials |
|---|---|---|---|---|---|
| 1 | Cover | DI | 9 | Junk ring | Q235 |
| 2 | Bottom body | DI | 10 | Spring plate | Steel |
| 3 | Pressing sleeve | Q235 | 11 | Upper body | DI |
| 4 | O ring | EPDM | 12 | Pressing sleeve | Q235 |
| 5 | Seat | EPDM | 13 | Gland | DI |
| 6 | Disc | DI+EPDM | 14 | Gasket | Silicone |
| 7 | Upper shaft | SS410 | 15 | Wormgear | DI |
| 8 | O ring | EPDM |
| DN | L | A | B | ∅F | n-∅d1 | S | H | PN10 | PN16 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ∅D | ∅D1 | N-∅d | ∅D | ∅D1 | N-∅d | ||||||||
| 50 | 43 | 122 | 71 | 70 | 4-∅10 | 11 | 25 | 165 | 125 | 4-18 | 165 | 125 | 4-18 |
| 65 | 46 | 132 | 81 | 70 | 4-∅10 | 11 | 25 | 185 | 145 | 8-18 | 185 | 145 | 8-18 |
| 80 | 46 | 142 | 90 | 70 | 4-∅10 | 14 | 25 | 200 | 160 | 8-18 | 200 | 160 | 8-18 |
| 100 | 52 | 158 | 105 | 70 | 4-∅10 | 14 | 28 | 220 | 180 | 8-18 | 220 | 180 | 8-18 |
| 125 | 56 | 172 | 122 | 70 | 4-∅10 | 14 | 28 | 250 | 210 | 8-18 | 250 | 210 | 8-18 |
| 150 | 56 | 190 | 136 | 102 | 4-∅12 | 17 | 28 | 285 | 240 | 8-22 | 285 | 240 | 8-22 |
| 200 | 60 | 225 | 168 | 102 | 4-∅12 | 17 | 35 | 340 | 295 | 8-22 | 340 | 295 | 12-22 |
| 250 | 68 | 258 | 202 | 125 | 4-∅14 | 22 | 40 | 395 | 350 | 12-22 | 405 | 355 | 12-26 |
| 300 | 78 | 293 | 236 | 140 | 4-∅18 | 27 | 40 | 445 | 400 | 12-22 | 460 | 410 | 12-26 |
| 350 | 78 | 335 | 263 | 140 | 4-∅18 | 27 | 40 | 505 | 460 | 16-22 | 520 | 470 | 16-26 |
| 400 | 102 | 365 | 303 | 140 | 4-∅18 | 27 | 50 | 565 | 515 | 16-26 | 580 | 525 | 16-30 |
| 450 | 114 | 422 | 327 | 165 | 4-∅22 | 32 | 50 | 615 | 565 | 20-26 | 640 | 585 | 20-30 |
| 500 | 127 | 453 | 366 | 165 | 4-∅22 | 32 | 60 | 670 | 620 | 20-26 | 715 | 650 | 20-33 |
| 600 | 154 | 531 | 426 | 254 | 8-∅18 | 40 | 70 | 780 | 725 | 20-30 | 840 | 770 | 20-36 |
A PTFE lined butterfly valve is a type of butterfly valve that uses a disc made of PTFE (polytetrafluoroethylene) to control the flow of fluid. PTFE is a type of plastic that is known for its chemical resistance, high temperature tolerance, and low friction properties. The PTFE lining is applied to the disc, which is attached to a stem that runs through the valve body.
As the stem is rotated, the disc moves into and out of the flow path, allowing or blocking the flow of fluid. The main advantage of a PTFE lined butterfly valve is that it offers excellent chemical resistance against a wide range of acids, alkalis, and other chemicals. This makes it suitable for use in applications where the fluid being transported is highly corrosive or toxic.
PTFE lined butterfly valves are available in a wide range of sizes and pressure ratings, and can be made from materials such as carbon steel, stainless steel, and alloy steels. They are also available in different designs, such as wafer, lug and double flange, and also with different types of actuators and accessories to meet specific requirements.
PTFE lined butterfly valves are known for their tight shut off and are available in both manual and actuated (pneumatic or electric) operation. They are also suitable for use in a wide range of temperatures, making them suitable for use in a variety of industries such as chemical, petrochemical, pharmaceutical, and power generation. They are also suitable for use in high-purity applications, as PTFE is highly resistant to contamination and does not release any toxic substances into the fluid.
What is a PTFE lined butterfly valve?
It is a type of butterfly valve that utilizes a disc lined with PTFE (polytetrafluoroethylene) to effectively control or block the flow of fluid in a pipeline.
What are the main advantages of using PTFE lining?
PTFE offers excellent chemical resistance against a wide range of acids and alkalis, high temperature tolerance, low friction properties, and it is highly resistant to contamination.
What is the working temperature range for this valve?
The standard working temperature range for our PTFE lined butterfly valves is between -20℃ and 200℃.
Which industries commonly use these valves?
They are widely used in highly corrosive or high-purity applications across industries such as chemical, petrochemical, pharmaceutical, food processing, papermaking, and power generation.
What types of operation and designs are available?
These valves are available in manual, pneumatic, or electric actuated operations. They also come in various designs including wafer, lug, and double flange configurations.