OEM China Suppliers Factory Concentric Flange Butterfly Valve with RPTFE Seal for Corrosive Substances Manufacturers, Manufacturer

Type: Concentric Resilient Seated Butterfly Valve

Series: D341F

Size: DN40-DN2000 / 2–80

Pressure Rating: PN6/PN10/PN16/5K/10K/150LB

Design Standard: EN 593

Service: OEM & ODM

Our Concentric Resilient Seated Butterfly Valve, part of the D341F series, is expertly designed for superior performance in pipelines that deal with highly corrosive substances. Featuring a premium lining of polytetrafluoroethylene (PTFE), this valve ensures durability and reliability. As a dedicated supplier and manufacturer located in China, we offer a range of sizes from DN40 to DN2000 (2 to 80) and pressure ratings suitable for various applications. Trust our factory to provide you with high-quality valves that meet international design standards, ensuring optimal service in your operations.

Product Description

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
Flange butterfly valve product highlight
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.

Valve Characteristics

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

Standard export 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.

Application scenario 1
Application scenario 2
Application scenario 3

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.

Related Products