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China Suppliers Factory Concentric Flange Butterfly Valve with RPTFE Seal for Corrosive Substances
| 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 midline design significantly reduces the opening and closing torque, making manual operation more effortless. Pneumatic/electric drive has lower energy consumption and faster response (pneumatic opening and closing ≤ 2 seconds); The valve plate and valve stem are connected without pins, and flange disassembly and assembly do not require special tools. The lining layer can be repaired or replaced separately after wear, without the need to replace the valve body as a whole.
Advantages
1. High maintenance convenience
The flange connection is easy to disassemble and assemble, and vulnerable parts such as valve plates and seats can be replaced separately without the need to disassemble the valve body as a whole; After the lining layer wears out, it can be re sprayed and repaired to reduce equipment maintenance costs and downtime.
2. Automation and explosion-proof compatibility
Supports DCS/PLC system integration control, can be paired with pneumatic and electric actuators; Optional explosion-proof certification execution mechanism can be selected to meet the safety requirements for use in flammable and explosive scenarios such as chemical, oil and gas industries.
3. Sanitary adaptability
Food grade PTFE lining meets FDA standards, with smooth inner walls that do not hang materials and are not prone to bacterial growth. It can be used in fluid delivery systems with high hygiene requirements such as pharmaceuticals, food and beverages.
Packing
Standard export wooden case packaging
Application Scenarios
Widely used in wastewater treatment, exhaust gas recovery systems, electrolyte circulation, acid pickling tank medium cut-off, high-temperature steam or corrosive gas regulation, but requiring temperature resistant lining.
Frequently Asked Questions
What standards does this flange butterfly valve comply with?
This flange butterfly valve complies with the EN593 standard and features a concentric structure manufactured using investment casting.
Does the valve support bidirectional sealing?
Yes, the valve supports bidirectional sealing direction and meets the zero leakage sealing grade standard.
What is the operating temperature range for this valve?
The working temperature range for this concentric flange butterfly valve is between -20°C and 120°C.
Can this butterfly valve be integrated into automated control systems?
Yes. It supports DCS/PLC system integration control and can be paired with pneumatic or electric actuators. Optional explosion-proof certified execution mechanisms are also available.
Is the lining material suitable for sanitary and food industries?
Yes, the food-grade PTFE lining meets FDA standards. It features smooth inner walls that do not hang materials or breed bacteria, making it suitable for pharmaceuticals, food, and beverages.
How convenient is the maintenance of this valve?
The valve offers high maintenance convenience. The flange connection allows easy disassembly, and vulnerable parts like the seat and plate can be replaced separately without replacing the whole valve body. The lining layer can also be repaired individually.