The advantages of Soft Sealed Flange Butterfly Valve

Soft sealed flange butterfly valves are commonly used in various fluid control systems due to their design and material advantages. Here are the key advantages of these valves:

1. Excellent Sealing Performance

The soft seal (usually made of rubber, PTFE, or other elastomers) ensures tight shutoff, preventing leaks even under low pressure.

Ideal for low-pressure and vacuum applications.

2. Corrosion Resistance

The soft sealing materials are resistant to many chemicals and corrosive substances, making the valve suitable for chemical, water treatment, and food industries.

3. Easy Operation

Low torque requirement for operation, allowing for manual, electric, or pneumatic actuators.

Quick opening and closing (typically 90° rotation).

4. Compact and Lightweight

Butterfly valves are generally more compact and lighter than gate or globe valves, making them easier to install and maintain.

Ideal for space-constrained systems.

5. Cost-Effective

Soft-sealed butterfly valves are typically less expensive than metal-seated valves.

Lower maintenance costs due to fewer wear-prone components.

6. Wide Range of Sizes and Pressures

Available in various sizes for different pipeline needs.

Suitable for both small-scale and large-scale fluid control systems.

7. Versatile Applications

Used in water supply, HVAC, wastewater, food processing, pharmaceuticals, and chemical industries.

Suitable for both on/off and throttling services.

Summary:

Soft sealed flange butterfly valves are a practical choice when tight sealing, ease of operation, corrosion resistance, and cost efficiency are priorities. They perform best in non-extreme temperature and pressure environments.

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