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China Suppliers Factory Full PTFE Lined Flange Butterfly Valve CF8 Body for Corrosive Liquids and Gases
| Valve Type: | Flange butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing Direction: | Bidirectional | Sealing Grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Handle/Lever |
- ① Thick shell, heavy-type
- ② High purity rubber, high wear resistance
- ③ Zero leakage standard
- ④ Various size in stock
★ Characteristics
The valve seat is made of PTFE material, which has extremely low friction coefficient, excellent chemical stability, and good self-lubricating properties, and can effectively resist corrosion from various strong acids, strong bases, and organic solvents.
✓ Advantages
1
Bidirectional Sealing + Zero Leakage Guarantee
The midline structure allows the butterfly plate to be concentric with the valve seat throughout the entire process, and with the excellent fit of the PTFE valve seat, it can achieve bi-directional pressure sealing without distinguishing the flow direction of the medium, making installation more flexible; The low friction coefficient and elastic compensation ability of PTFE can effectively counteract the small deformation of the butterfly plate, easily achieve zero leakage sealing level, and meet the high requirements for medium leakage prevention in industries such as chemical and pharmaceutical.
2
Super Corrosion Resistance, Suitable for Complex Working Conditions
The valve body and butterfly plate are made of 304/316 stainless steel material, which is resistant to oxidation, acid and alkali; PTFE valve seats have extremely strong chemical stability and do not react with the vast majority of strong acids, strong bases, and organic solvents. The combination of the two can withstand the erosion of corrosive media (such as acid and alkali solutions, salt spray, organic solvents) and high-purity media (such as food and beverage, pharmaceutical raw materials), and is suitable for working conditions far beyond ordinary carbon steel or rubber valve seat butterfly valves.
📦 Packing
Standard export wooden case packaging
🌏 Application Scenarios
Widely used in pipeline systems in industries such as chemical, petroleum, pharmaceutical, food, and environmental protection, especially suitable for handling highly corrosive and high-purity fluid media, such as various acid-base solutions, organic solvents, food and beverages, etc.
? Frequently Asked Questions
Q
What is the sealing grade of this flange butterfly valve?
This valve achieves a zero leakage sealing grade. The PTFE valve seat's low friction coefficient and elastic compensation ability ensure a tight seal, meeting the strictest leakage prevention requirements in chemical and pharmaceutical industries.
Q
What temperature range is this butterfly valve suitable for?
This valve is designed to operate within a temperature range of -20°C to 120°C, making it suitable for a wide variety of industrial pipeline applications.
Q
Can this valve handle corrosive media?
Yes. The valve body and butterfly plate are made of 304/316 stainless steel, and the valve seat is made of PTFE, which offers exceptional chemical resistance. It can withstand strong acids, strong bases, organic solvents, and high-purity media without degradation.
Q
Does this valve support bidirectional flow?
Yes. The concentric midline structure allows the butterfly plate to remain concentric with the valve seat at all times, enabling bidirectional pressure sealing without needing to distinguish the flow direction of the medium, offering greater installation flexibility.
Q
What industries is this flange butterfly valve commonly used in?
This valve is widely used in pipeline systems across chemical, petroleum, pharmaceutical, food and beverage, and environmental protection industries. It is especially suited for handling highly corrosive and high-purity fluid media.
Q
How is the valve packaged for export?
The valve is packaged in standard export wooden cases, ensuring safe protection during international shipping and handling, and complying with common export packaging standards.