Body Material:WCB+PTFE
Size Range:DN50~1600
Connection Options:Flanged
Working Pressure:Pn<1.6mpa
Working Temperature:-40°C to 120°C
Sealing Options:Soft Sealed
Manufacturing Method: Cast
Applicable Medium:Corrosion Medium
Manufacturing Standard:GB,DIN,ANSI
The Flanged PTFE Full Lined Butterfly Valve is a highly efficient and reliable valve designed for controlling the flow of liquids and gases in a variety of industrial applications. This valve features a durable PTFE (Polytetrafluoroethylene) lining that provides excellent resistance to corrosion, abrasion, and high temperatures, making it ideal for use in aggressive environments and chemical processing industries.
Material Specification
No. | Name | Material |
1 | Body | A216 WCB, A351 CF8/A351 CF8M, A351 CF3/A351 CF3M |
2 | Stem | 2Cr13 (SS420), SS410, 17-4PH |
3 | Shaft sleeve | SS304 |
4 | O-ring | VITON, VITON+FEP, VITON+PFA |
5 | Disc | A216 WCB+Lining material, A351 CF8+Lining material, CF3/CF3M+Lining material |
6 | Seat | PTFE, RPTFE, PFA, FEP, PO |
7 | Elastomer Backing | Silicone rubber, VITON |
8 | Body bolt | A193 B7, A320 B8, A193 B8M |
9 | Bolt | A193 B7, A320 B8, A193 B8M |
Technical Specification
Specification | Value |
Design & Manufacture Standard | HG/T 3704, GB/T 12238 |
Face-to-face Dimension | HG/T 3704, GB/T 12221 |
Flange Standard | HG/T 20592, GB/T 9119 |
Inspection and Test Standard | GB/T 13927, JB/T 9092 |
Nominal Diameter | DN50-DN1600, |
Nominal Pressure (MPa) | 1 |
Shell Test (MPa) | 1.5 |
Temperature Range (°C) | PTFE: -30~180 |
Applicable Medium | Strong corrosive medium i.e. hydrochloric acid, Nitric acid, Hydrofluoric acid, Liquid chlorine, Sulfuric Acid, Aqua regia etc. |
Pressure Test (MPa) | High Pressure Sealing: 1.1 Low Pressure Sealing: 0.6 |
DN | NPS | L1 Wafer | L2 Flange | ASME 150LB D | D1 | Z-d | D | D1 | Z-d | JIS 10K D2 | H1 | H2 | A |
40 | 1 1/2 | 40 | 106 | 125 | 98.5 | 4-16 | 140 | 105 | 4-19 | 70 | 60 | 90 | 78 |
50 | 2 | 43 | 108 | 150 | 120.5 | 4-19 | 155 | 120 | 4-19 | 90 | 70 | 112 | 96 |
65 | 2 1/2 | 46 | 112 | 180 | 139.5 | 4-19 | 175 | 140 | 4-19 | 110 | 80 | 125 | 112 |
80 | 3 | 46 | 114 | 190 | 152.5 | 4-19 | 185 | 150 | 8-19 | 130 | 89 | 135 | 130 |
100 | 4 | 52 | 127 | 230 | 190.5 | 8-19 | 210 | 175 | 8-19 | 148 | 105.5 | 142 | 150 |
125 | 5 | 56 | 140 | 255 | 216 | 8-22 | 250 | 210 | 8-22 | 181 | 121 | 165 | 178 |
150 | 6 | 56 | 140 | 280 | 241.5 | 8-22 | 280 | 240 | 8-23 | 202 | 145 | 180 | 206 |
200 | 8 | 60 | 152 | 345 | 298.5 | 8-22 | 330 | 290 | 12-23 | 263 | 177 | 228 | 260 |
250 | 10 | 68 | 165 | 405 | 362 | 12-25 | 400 | 355 | 12-23 | 313 | 205 | 278 | 317 |
300 | 12 | 78 | 178 | 485 | 432 | 12-25 | 445 | 400 | 16-25 | 368 | 235 | 295 | 367 |
350 | 14 | 78 | 190 | 535 | 476 | 12-29 | 490 | 445 | 16-25 | 415 | 260 | 341 | 466 |
400 | 16 | 102 | 216 | 595 | 560 | 16-29 | 510 | 480 | 16-27 | 484 | 299 | 390 | 495 |
450 | 18 | 114 | 222 | 635 | 578 | 16-32 | 620 | 565 | 20-27 | 519 | 320 | 442 | 630 |
500 | 20 | 127 | 229 | 700 | 635 | 20-32 | 675 | 620 | 20-27 | 569 | 352.5 | 470 | 694 |
Chemical Processing Industry:
The PTFE lining provides exceptional protection against harsh chemicals, acids, and solvents. This valve is ideal for regulating flow in pipelines that carry aggressive substances, ensuring leak-proof performance and reducing the risk of contamination.
Pharmaceutical Manufacturing:
In pharmaceutical production, hygiene and material integrity are paramount. The Flanged PTFE Full Lined Butterfly Valve helps maintain strict control over liquid and gas flows in sterile systems, such as in drug formulation and packaging lines.
Water Treatment and Wastewater Management:
The valve is used in water treatment plants and wastewater systems to control the flow of fluids, offering excellent resistance to corrosive chemicals and ensuring proper flow regulation in aggressive environments like sewage treatment.
Food and Beverage Industry:
With its ability to withstand high temperatures and resist corrosive substances, this valve is used in food and beverage applications such as liquid handling and beverage processing, where sanitary conditions and material compatibility are essential.
Oil and Gas Industry:
The Flanged PTFE Full Lined Butterfly Valve is well-suited for controlling flow in oil and gas pipelines, especially for transporting aggressive chemicals or oils. Its durable construction ensures long-lasting service under high-pressure and temperature conditions.
Pulp and Paper Industry:
This valve is ideal for controlling the flow of highly corrosive chemicals used in the paper and pulp production process, such as bleaching agents and acids, ensuring minimal maintenance and efficient operation.
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