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PTFE Seat Wafer Butterfly Valve - High-Quality China Suppliers & Factory, 2-12/DN50-DN300, PN10/PN16/PN25
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
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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
| in | DN | H1 | H2 | C | L | A | B |
| 2 | 50 | 102 | 53 | 60 | 92 | 8 | 16 |
| 2.5 | 65 | 109 | 61 | 76 | 102 | 8 | 16 |
| 3 | 80 | 112 | 68 | 89 | 102 | 8 | 16 |
| 4 | 100 | 136 | 85 | 114 | 116 | 10 | 16 |
| 5 | 125 | 166 | 100 | 141 | 125 | 10 | 16 |
| 6 | 150 | 177 | 113 | 165 | 125 | 10 | 16 |
| 8 | 200 | 234 | 143 | 216 | 138 | 11 | 19 |
| 10 | 250 | 266 | 178 | 273 | 159 | 13 | 19 |
| 12 | 300 | 270 | 230 | 324 | 166 | 13 | 19 |
Frequently Asked Questions
Q What is a PTFE Seat Butterfly Valve and what is it used for?
A PTFE Seat Butterfly Valve is a quarter-turn flow control valve featuring a polytetrafluoroethylene (PTFE) seat lining. It is widely used in industrial pipelines to regulate or isolate the flow of corrosive fluids, acids, alkalis, solvents, and other aggressive media where chemical resistance and tight sealing are critical.
Q What are the advantages of a PTFE seat over other seat materials like EPDM or NBR?
PTFE offers superior chemical resistance compared to EPDM or NBR, making it suitable for handling highly corrosive chemicals, strong acids, and solvents. It also performs well across a wider temperature range and provides excellent bubble-tight sealing, though EPDM and NBR may be preferred for specific applications involving water or oil-based media.
Q What pressure and temperature range does this butterfly valve support?
The PTFE Seat Butterfly Valve is designed to handle both low and high-pressure systems with bubble-tight sealing. The PTFE seat is suitable for temperatures typically ranging from -20°C to +150°C, making it appropriate for a wide variety of industrial process conditions. Please refer to the product datasheet for precise pressure-temperature ratings.
Q What materials are used for the valve body and disc?
The valve body is made of GGG40 ductile iron, providing high strength and durability. The disc and shaft are manufactured as a one-piece component in CF8M (316 stainless steel), which offers excellent corrosion resistance. The seat is available in PTFE, FPM, EPDM, PU, or NBR depending on the application requirements.
Q What size range is available for the PTFE Seat Butterfly Valve?
The PTFE Seat Butterfly Valve is available in sizes ranging from DN50 (2 inch) to DN300 (12 inch), covering a broad range of pipeline applications. Detailed dimensional specifications including H1, H2, C, L, A, and B measurements for each size are provided in the dimensions table above.
Q Can this valve be used with automated actuators?
Yes, the PTFE Seat Butterfly Valve is designed with a standard ISO mounting pad, making it fully compatible with pneumatic actuators, electric actuators, and gear operators. Its low operating torque design further facilitates smooth automated operation, reducing energy consumption and extending actuator service life.
Product Packaging
01020304