PFA/FEP Butterfly Valves
PFA/FEP Lined Butterfly Valves offer excellent corrosion resistance for handling aggressive chemicals, ensuring tight shutoff and smooth flow control in chemical process systems.
- Type
- Wafer / Lug Type Butterfly Valve
- Size Range
- 50 mm to 300 mm (2” to 12”)
- Lining Material
- PFA / FEP (min. 3 mm thickness)
- Body Material
- Cast Iron / Ductile Iron / WCB / SS
- Manufacturer since 1984
- ISO 14001 & 45001
- Application-led selection
Overview
About the PFA/FEP Butterfly Valves
PFA/FEP Lined Butterfly Valves are engineered for use in highly corrosive applications where metal valves fail due to chemical attack. These valves are internally lined with PFA or FEP fluoropolymer material, offering excellent resistance to acids, alkalis, solvents, and other aggressive media.
The valve’s disc is fully encapsulated with PFA/FEP to prevent contact between the process fluid and metal parts. Their compact, lightweight design and bubble-tight sealing make them ideal for flow control and on/off applications in industries like chemicals, pharmaceuticals, and water treatment.
Available in wafer and lug-type designs, these valves can be operated manually or with pneumatic/electric actuators.
Engineering Data
Technical Specifications
| Type | Wafer / Lug Type Butterfly Valve |
|---|---|
| Size Range | 50 mm to 300 mm (2” to 12”) |
| Lining Material | PFA / FEP (min. 3 mm thickness) |
| Body Material | Cast Iron / Ductile Iron / WCB / SS |
| Disc Material | SS with PFA/FEP encapsulation |
| Shaft Material | SS 316 / SS 410 |
| Seat Material | PTFE / PFA / FEP |
| Temperature Range | Up to 180°C |
| Pressure Rating | PN10 / PN16 / ANSI 150# |
| Operation | Manual Lever / Gear / Pneumatic / Electric |
Construction
Materials of Construction
Body
Cast Iron / Ductile Iron / SS304 / WCB
Lining
PFA / FEP (min. 3 mm)
Disc
SS with PFA / FEP encapsulation
Shaft
SS 316 / SS 410
Seat
PTFE / FEP / PFA
Fasteners
SS 304 / SS 316
Use Cases
Industry Applications
- Acid and chemical transfer lines
- Water and wastewater treatment plants
- Pharmaceutical and biotech industries
- Chlor-alkali plants
- Pulp and paper processing
- Petrochemical and fertilizer industries
- Effluent and corrosive gas handling
Selection Guide
Lined vs. Metal Valves
-
1
Choose lined valves when the process fluid is corrosive and must be isolated from the metal body.
-
2
Choose metal valves when temperature, pressure, abrasion, or mechanical strength is the main driver.
-
3
Correct selection depends on chemical compatibility, pressure class, temperature, and actuation needs.
For selection, share flow rate, discharge pressure or head, viscosity, temperature, solids content and installation conditions — our engineers will recommend the right valves configuration.
Questions
Frequently Asked Questions
What is PFA/FEP Butterfly Valves used for?
PFA/FEP Butterfly Valves is used for industrial liquid handling where the selected valves configuration matches flow, pressure, material compatibility, and site duty requirements.
How do I select the right valves model?
Share the fluid name, flow rate, head or pressure, viscosity, temperature, solids content, installation details, and operating hours so the team can recommend a suitable model.
Can Sando support industrial valves for chemical process lines?
Yes. Sando Rotary can review the duty conditions and suggest suitable products, materials, elastomers, and accessories for industrial valves for chemical process lines.
Do you provide technical specifications and application guidance?
Yes. Specifications, catalogs, material guidance, performance details, and application support can be shared for procurement and engineering review.
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