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Automatic Pneumatic Wafer Butterfly Valve with PTFE/Rubber Lining for Corrosive Media
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Pneumatic Wafer Lined Butterfly Valve
Product Name: Pneumatic Wafer Type PTFE Lined Butterfly Valve
Short Description: High-performance automated valve designed for corrosive media control. Features a compact wafer body, full PTFE lining, and a durable pneumatic actuator for reliable on/off operation.
2. Key Features & Benefits
- Superior Corrosion Resistance: The valve body and disc are fully lined with PTFE (Teflon) or PFA, making it ideal for harsh chemicals like sulfuric acid, hydrochloric acid, and caustic soda.
- Automated Control: Equipped with a rack-and-pinion pneumatic actuator. Compatible with solenoid valves and limit switches for remote automation.
- Leak-Tight Seal: Bi-directional zero-leakage performance with a replaceable PTFE seat design.
- Compact Wafer Design: Lightweight and space-saving. Fits easily between two pipeline flanges (ANSI/DIN/JIS standards).
- Hygienic & Clean: Smooth inner lining prevents media accumulation, suitable for food and pharmaceutical applications.
3. Structure & Working Principle
How It Works:
The pneumatic actuator uses compressed air to rotate the valve stem by 90°. This action turns the disc parallel to the flow (Open) or perpendicular to the flow (Closed). The "wafer" style body is clamped between pipe flanges using long bolts.
The pneumatic actuator uses compressed air to rotate the valve stem by 90°. This action turns the disc parallel to the flow (Open) or perpendicular to the flow (Closed). The "wafer" style body is clamped between pipe flanges using long bolts.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Pneumatic Wafer Butterfly Valve |
| Size Range | DN50 - DN600 (2" - 24") |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Body Material | Ductile Iron / Cast Steel / Stainless Steel |
| Lining Material | PTFE / FEP / PFA / Rubber (EPDM/NBR) |
| Disc Material | SS304 / SS316 (Lined) |
| Seat Material | PTFE |
| Operating Temp | -20°C to +180°C (Depends on lining) |
| Actuator Type | Double Acting / Single Acting (Spring Return) |
| Air Pressure | 4-7 Bar |
5. Applications
- Chemical Industry: Transporting strong acids, alkalis, and organic solvents.
- Water Treatment: Dosing systems, chlorination, and wastewater treatment.
- Pharmaceuticals & Food: Handling sanitary fluids and high-purity water.
- Metallurgy & Power: Flue gas desulfurization systems.
6. Packaging & Shipping
- Packaging: Plywood case or Carton box with foam protection to ensure safety during transport.
- Lead Time: 7-15 days after order confirmation.
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