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PTFE Seat Flange Butterfly Valve 2-12 | China Suppliers & Factory for Chemical Resistance
Product Details
PTFE Seat Butterfly Valve provides the perfect balance of durability, chemical resistance, and cost-effectiveness. Whether for corrosive fluids or demanding industrial processes, this valve ensures stable performance and long service life.
The PTFE seat offers outstanding resistance to acids, alkalis, solvents, and corrosive chemicals, making it ideal for aggressive media applications. The resilient PTFE seat provides bubble-tight sealing in both low and high-pressure systems, ensuring zero leakage and enhanced operational safety.
Key Features
🛡️
Superior Chemical Resistance
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Excellent Sealing Performance
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Low Operating Torque
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Wide Temperature Range
Specification
| No. | Parts | Materials |
| 1 | Body | GGG40 |
| 2 | Disc/shaft one piece | CF8M |
| 3 | Seat | PTFE, FPM, EPDM, PU, NBR |
| 4 | Seat Energizer | SR |
| 5 | Weather seal | NBR |
| 6 | Bearing | PTFE impregnated SS316L |
| 7 | Gland | PTFE |
| 8 | Screw | SS304 |
| 9 | Belleville washer | SS304 |
| 10 | Stuffing collar | SS316 |
| 11 | O ring | FPM |
| 12 | V ring | PTEF |
Dimensions
| DN | Shape size | Connection dimension | |||||||
| L | H2 | H1 | 1.0MPa | 1.6MPa | |||||
| D | D1 | Z-d | D | D1 | Z-d | ||||
| 50 | 108 | 143 | 85 | 165 | 125 | 4-18 | 160 | 125 | 4-18 |
| 65 | 112 | 157 | 93 | 185 | 145 | 4-18 | 180 | 145 | 4-18 |
| 80 | 114 | 178 | 100 | 200 | 160 | 4-18 | 195 | 160 | 8-18 |
| 100 | 127 | 185 | 110 | 220 | 180 | 8-18 | 215 | 180 | 8-18 |
| 125 | 140 | 206 | 120 | 250 | 210 | 8-18 | 245 | 210 | 8-18 |
| 150 | 140 | 225 | 160 | 285 | 240 | 8-23 | 280 | 240 | 8-23 |
| 200 | 152 | 275 | 245 | 340 | 295 | 8-23 | 335 | 295 | 12-23 |
| 250 | 165 | 326 | 260 | 395 | 350 | 12-23 | 405 | 355 | 12-26 |
| 300 | 178 | 333 | 300 | 445 | 400 | 12-23 | 460 | 410 | 12-26 |
| 350 | 190 | 393 | 320 | 505 | 460 | 16-23 | 520 | 470 | 12-26 |
| 400 | 216 | 438 | 330 | 565 | 515 | 16-26 | 580 | 525 | 16-30 |
| 450 | 222 | 488 | 380 | 615 | 565 | 20-26 | 640 | 585 | 20-30 |
| 500 | 229 | 540 | 390 | 670 | 620 | 20-26 | 715 | 650 | 20-33 |
| 600 | 267 | 615 | 450 | 780 | 725 | 20-30 | 840 | 770 | 20-36 |
| 700 | 292 | 660 | 480 | 895 | 840 | 24-30 | 910 | 840 | 24-36 |
| 800 | 318 | 720 | 580 | 1010 | 950 | 24-34 | 1020 | 950 | 24-39 |
| 900 | 330 | 785 | 625 | 1110 | 1050 | 28-34 | 1120 | 1050 | 28-39 |
| 1000 | 410 | 900 | 660 | 1220 | 1160 | 28-34 | 1255 | 1170 | 28-42 |
| 1200 | 470 | 1070 | 780 | 1450 | 1380 | 32-41 | 1485 | 1390 | 32-48 |
Frequently Asked Questions
❓ What is a PTFE Seat Butterfly Valve?
A PTFE Seat Butterfly Valve is a type of quarter-turn valve that uses a polytetrafluoroethylene (PTFE) seat to achieve a reliable, bubble-tight seal. It is widely used in industrial pipelines for controlling the flow of liquids and gases, especially in corrosive or aggressive media environments.
❓ What chemicals is the PTFE seat resistant to?
PTFE offers exceptional resistance to a broad range of aggressive chemicals including acids, alkalis, solvents, and corrosive chemicals. This makes PTFE Seat Butterfly Valves ideal for use in chemical processing, water treatment, and pharmaceutical industries where media compatibility is critical.
❓ What pressure ratings are available for this valve?
The PTFE Seat Butterfly Valve is available in both 1.0 MPa and 1.6 MPa pressure ratings, covering a wide range of industrial pipeline requirements. Dimensional specifications for both pressure classes are provided in the dimension table above.
❓ What seat material options are available besides PTFE?
In addition to PTFE, the seat is also available in FPM (Viton), EPDM, PU (Polyurethane), and NBR (Nitrile Rubber). Each material is suited for different temperature ranges, media types, and application conditions, allowing for flexible selection based on your specific needs.
❓ What sizes are available for this butterfly valve?
The PTFE Seat Butterfly Valve is available in a wide range of nominal diameters (DN) from DN50 to DN1200, making it suitable for small to large-diameter pipeline installations across various industrial sectors.
❓ What is the body material of this butterfly valve?
The valve body is manufactured from GGG40 ductile iron, which offers excellent mechanical strength and durability. The disc and shaft are made as a one-piece unit from CF8M stainless steel, ensuring superior corrosion resistance and structural integrity for long-term reliable service.
Product Packaging
01020304