FAT-D-CEF Pneumatic Stainless Steel Flanged PTFE Butterfly Valve
FAT-D-CEF Pneumatic Stainless Steel Flanged PTFE Butterfly Valve
The Pneumatic Stainless Steel Flanged PTFE Butterfly Valve has a Teflon-lined stainless body for corrosion resistance, ensuring tight sealing and long service life, helping users reduce maintenance and downtime, proven by API 609 / EN 12266-1 tests and CE, ISO 9001 certifications.
Technical Specifications
| Size Range | DN50–DN600 (2″–24″) |
| Working Pressure Range: | PN10 / PN16 (150 PSI) |
| Working Temperature Range: | -20°C to +180°C |
| Body Material: | Stainless Steel (CF8 / CF8M) |
| Connection Type: | Flanged (ANSI 150 / DIN PN16 / JIS 10K) |
| Applicable Medium: | Corrosive liquids, acids, alkalis, solvents, deionized water |
| Actuator Type: | Pneumatic Double-Acting or Spring-Return |
| Voltage Options | 24V DC / 110V AC / 220V AC |
| Design Standard | API 609 / ISO 5211 / MSS SP-67 |
| Testing Standard | API 598 / EN 12266-1 |
| Fire-Safe Design | Optional per API 607 |
| Certification | CE / RoHS / ISO 9001 / IP65 (Actuator) |
| Customization | Above Are Standard Parameter Samples. If You Have Specific Parameters And Materials, We Can Customize Them All. |
| Series | AT | AW | Linear | Pneumatic Cylinder | Sanitary |
|---|---|---|---|---|---|
| Valve Body | Ball valve, butterfly valve, plug valve | Gate valve, Global valve | Knife gate valve | Sanitary butterfly valve | |
| Function | Double Acting, Single Acting (Failure Resetting FO or FC) | ||||
| Control Accessories |
• Solenoid Valve, Filter Regulator Lubricator (F.R.L.), Positioner, Limit Switch, Handwheel • Solenoid Valve & Positioner are with Explosion-proof grade and Signal Feedback type for choice |
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| Operating Medium |
Clean and dry or lubricated air or inert gas. Any non-corrosive gas that is compatible with the internal parts of the actuator and the lubricant. The dew point temperature of the operating medium is -20°C, and the size of impurity particles is no more than 30u. When selecting a positioner, the impurity particle size should be no more than 5u. |
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| Air Source Pressure | 3bar to 8bar | ||||
| Operating Environment Temperature |
• Standard type: -20°C to +80°C • Low-temperature type: -40°C to +80°C • High-temperature type: -20°C to +160°C |
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| Lubrication |
Under normal operating conditions, the standard type does not require additional lubricant. For low-temperature or high-temperature environments, special lubricants are required. |
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Product Benefits & Features
1. Performance & Reliability
• High Corrosion Resistance: The Pneumatic Stainless Steel Flanged PTFE Butterfly Valve uses a Teflon-lined stainless body for strong acid and alkali resistance.
• Precision Flow Control: The air-operated PTFE butterfly valve offers accurate modulation for chemical and water treatment systems.
• Zero Leakage: The PTFE sealing seat ensures tight shutoff under high pressure.
• Extended Lifespan: The stainless pneumatic valve resists wear and chemical damage for long
2. Installation & Compatibility
• Universal Flange Fit: The PTFE-lined pneumatic butterfly valve matches ANSI, DIN, and JIS standards.
• ISO 5211 Mounting: Direct connection supports double-acting and spring-return actuators.
• Compact Design: The air actuator valve saves space and fits industrial pipelines easily.
• Flexible Voltage Options: Works with 24V DC, 110V AC, or 220V AC solenoid valves.
3. Application Efficiency & Safety
• Chemical Resistance: The PTFE-lined stainless butterfly valve handles corrosive media and solvents.
• Fire-Safe Design: Optional API 607 structure enhances plant safety.
• Low Air Consumption: The air-operated butterfly valve minimizes pneumatic energy use.
• Pressure-Tested: Each PTFE pneumatic valve is verified per API 598 / EN 12266-1.
4. Compliance & Sustainability
• Certified Quality: The stainless pneumatic butterfly valve meets CE, ISO 9001, RoHS, SIL 3.
• Eco Material: The Teflon-coated valve and stainless body are recyclable.
• Low Maintenance: The PTFE seat reduces wear and downtime.
• Global Standard: Built to API, ISO, MSS SP-67 for worldwide industrial use.
Why Choose Fleyenda Valve Manufacturing
Product Stability
We use reinforced structures and precision sealing to ensure consistent performance under pressure and temperature changes.
Conpany&Product Certification
We have CE, RoHS, ISO, SIL, TUV, and IP68 waterproof certifications covering safety, quality, and environmental standards.
Projects Experience
Cooperated over 40 countries, we have experience in oil & gas, energy, water, chemicals, food & beverage, and automation.
Customization Capability
With 20 years experience, we turn complex working conditions into precise valve solutions with high speed and accuracy.
Aftersales Support
•We have technical team provides real-time video support to help customers resolve on-site issues quickly.
Customer Cases
Trusted by Shell plc, Petronas, Chevron, TotalEnergies, and Dupont in projects across 40+ countries.
Our Product Actual Export Pictures
FAQs That 80% Users Interest
1. What makes a Pneumatic Stainless Steel Flanged PTFE Butterfly Valve ideal for corrosive chemical applications?
• The PTFE-lined pneumatic valve provides a strong barrier against acids and alkalis, preventing corrosion.
• The stainless-steel air-operated butterfly valve maintains strength under pressure and temperature changes.
• Its Teflon-coated disc ensures tight shutoff with minimal wear.
• The automated PTFE control valve delivers reliability in chemical, solvent, and water systems.
2. How should I install a PTFE-lined stainless pneumatic butterfly valve to ensure smooth operation?
• Align flanged connections precisely to prevent sealing distortion.
• Keep the valve disc and PTFE liner clean to avoid damage.
• Match pneumatic actuator torque with valve requirements for stable control.
• Use stainless bolts and compatible gaskets for long-term sealing.
3. How can I extend the service life of a pneumatic Teflon-lined butterfly valve in industrial systems?
• Supply clean, dry compressed air to the actuator.
• Inspect the PTFE seat regularly and replace when worn.
• Keep operation within rated pressure and temperature limits.
• Use expansion joints to protect the PTFE-lined structure from stress.
4. In which industries is a pneumatic flanged PTFE butterfly valve most commonly used?
• The Teflon-lined actuator valve suits chemical and pharmaceutical plants.
• Ideal for water treatment and acid neutralization systems.
• The air-operated stainless valve fits food and biotech applications.
• Effective for solvent handling and gas scrubbing processes.