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.
| 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 | Sanitário |
|---|---|---|---|---|---|
| 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) | ||||
| Acessórios de controle |
• 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 | ||||
| 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. | ||||
| 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 | ||||
| Lubrication |
Under normal operating conditions, the standard type does not require additional lubricant. For low-temperature or high-temperature environments, special lubricants are required. | ||||
Certified Quality for Industrial Valve Applications
Fleyenda valves and electric actuators are built for stable performance, reliable operation, and long-term industrial use. With certified quality support, they are suitable for water treatment, chemical processing, automation, and industrial process control systems.
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.