FAT-D-CEW Pneumatic Cast Iron Wafer EPDM Butterfly Valve
FAT-D-CEW Pneumatic Cast Iron Wafer EPDM Butterfly Valve
The Pneumatic Cast Iron Wafer EPDM Butterfly Valve features a corrosion-resistant EPDM liner and high-torque pneumatic actuator, providing precise shut-off, stable flow control, and minimal leakage in water, air, and chemical systems, proven by API 598 and EN 12266-1 testing for durability and sealing reliability.
Technical Specifications
| Size Range | DN50 – DN600 (2″ – 24″) |
| Working Pressure Range: | PN10 / PN16 (150 PSI) |
| Working Temperature Range: | -10°C to +120°C |
| Body Material: | Cast Iron |
| Connection Type: | Wafer Type |
| Applicable Medium: | Water, Air, Steam (low pressure), Dilute Acids, Neutral Chemicals |
| Actuator Type: | Double-Acting or Spring-Return Pneumatic Actuator |
| Voltage Options | 24V DC, 110V AC, 220V AC |
| Design Standard | ISO 5211, MSS SP-67 |
| Testing Standard | API 598, EN 12266-1 |
| Fire-Safe Design | Optional |
| 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
• Pneumatic Cast Iron Wafer EPDM Butterfly Valve ensures precise flow control with high-torque pneumatic actuation.
• EPDM-sealed disc valve provides tight shut-off and reliable leak prevention.
• Cast iron pneumatic valve body offers strong pressure resistance and stable performance.
• Wafer butterfly design reduces flow loss and improves energy efficiency.
2. Durability & Material Advantage
• Stainless steel disc butterfly valve resists corrosion and wear in harsh media.
• EPDM seat maintains elasticity and sealing performance over long service life.
• Pneumatic actuator with coated housing prevents rust and contamination.
• ISO 5211 mounting pad ensures actuator compatibility and easy replacement.
3. Installation & Maintenance Efficiency
• Wafer-type butterfly valve allows fast installation between flanges.
• Lightweight structure reduces piping stress and assembly time.
• Replaceable seat and stem enable quick on-site maintenance.
• Air-operated actuator supports solenoid valve and limit switch integration.
4. Application & Cost Optimization
• Ideal for HVAC, water treatment, and chemical pipelines using air-driven butterfly valves.
• Pneumatic wafer valve lowers energy use and maintenance costs.
• Works with centralized air systems for automated control.
• Provides reliable flow regulation and high cost efficiency.
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 industries commonly use the Pneumatic Cast Iron Wafer EPDM Butterfly Valve and why?
• The pneumatic wafer butterfly valve is used in HVAC, water treatment, and chemical process pipelines for automated flow control.
• Its EPDM-lined air control valve provides tight sealing for water, steam, and alkaline media.
• The cast iron actuated butterfly valve offers a cost-effective and durable solution for large-diameter systems.
• Compact design and fast pneumatic actuation make it ideal for cooling and compressed air systems.
2. How does the EPDM liner improve performance in a pneumatic butterfly valve?
• The EPDM seat butterfly valve ensures reliable shut-off and resistance to chemical corrosion.
• The rubber-lined air actuated valve maintains flexibility and sealing under frequent cycling.
• EPDM performs well with water and light chemicals in non-oil applications.
• Compared with other liners, it offers better resistance to steam and alkaline media.
3. What maintenance steps help extend the life of a pneumatic wafer valve?
• Maintain proper air supply pressure to prevent actuator malfunction.
• Inspect the EPDM seat and disc for wear or swelling in chemical service.
• Clean pipelines before installation to protect sealing surfaces.
• Lubricate the stem and check fasteners to ensure smooth rotation.
4. How to choose between a pneumatic and an electric actuated butterfly valve?
• The pneumatic cast iron butterfly valve suits rapid cycling and fail-safe applications.
• The electric actuated butterfly valve fits precise flow control where air supply is unavailable.
• Pneumatic types handle harsh environments and fast response needs.
• Electric types integrate easily with digital control systems but cost more.