Full Metal-Seated Bi-Directional Butterfly Valve

PANS Full Metal-Seated Bi-Directional Butterfly Valve ensures high sealing performance and durability with metal-to-metal seats. Features include bi-directional zero-leakage, double safety design, anti-blowout stem, and replaceable sealing rings.

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Description

Product Overview: PANS Full Metal-Seated Bi-Directional Butterfly Valve

The PANS Full Metal-Seated Bi-Directional Butterfly Valve features a “Metal-to-Metal Seat Ring” design, ideal for frequent operations and high sealing requirements. Key features include:

1. Metal-to-Metal Seat Ring Both the disc and seat sealing rings are made of metal with hardfaced treatment, ensuring reliable sealing performance and extended lifespan under frequent use.

2. Bi-Directional Zero-Leakage Design This valve series meets bi-directional zero-leakage standards, providing leak-free sealing in both directions, suitable for high-sealing applications.

3. Double Safety Structure The valve includes separate thrust rings on both sides of the disc to prevent deformation and misalignment caused by fluid pressure and temperature, ensuring reliable operation.

4. Anti-Blowout Stem Features an anti-blowout stem design to prevent accidental stem ejection, enhancing safety.

5. No Dead Zone Design Using a triple-eccentric structure, the valve avoids common “opening jump area” issues, allowing smooth regulation from nearly 0 to 90 degrees.

6. Forged Alloy Steel Seat Ring The seat ring is made of forged alloy steel, offering excellent wear resistance and high temperature and pressure tolerance for long-term reliability.

7. Replaceable Sealing Rings Both disc and seat sealing rings are replaceable, simplifying maintenance and reducing costs.

8. Evenly Fixed Structure The sealing ring is fixed with evenly distributed bolts to prevent leakage or loosening.

9. Fire-Safe Design The metal-seated structure meets API 607 fire safety standards, enhancing safety.

10. Live Loaded Packing System Equipped with a live loaded packing system, ensuring a maximum leakage rate of ≤20 PPM and extending maintenance-free periods.

Bi-Directional Butterfly Valve FAQs

1. What defines a bi-directional butterfly valve and its primary advantage?

A bi-directional butterfly valve is engineered to provide reliable shut-off in both flow directions, unlike conventional valves that may only seal effectively in one direction. Its primary advantage is enhanced operational flexibility and safety, as it can be installed without concern for flow direction, simplifying piping design and reducing inventory.

2. What are the benefits of a full metal-seated bi-directional butterfly valve?

A full metal-seated bi-directional butterfly valve offers superior performance in high-temperature, high-pressure, and abrasive applications where soft seats would fail. The metal-to-metal sealing ensures durability, extended service life, and minimal maintenance, providing a robust solution for demanding industrial processes.

3. In which applications is a bi-directional butterfly valve particularly recommended?

A bi-directional butterfly valve is particularly recommended for applications where flow reversal can occur, or where process flexibility requires isolation from either upstream or downstream. Common industries include oil & gas, power generation, chemical processing, and water treatment, especially in critical isolation points or pump discharge lines.

4. As a bi directional butterfly valve manufacturer, what quality standards do you adhere to?

As a reputable bi directional butterfly valve manufacturer, we adhere to stringent international quality standards such as ISO 9001 for quality management, and relevant API (American Petroleum Institute) or EN (European Norm) standards for valve design, testing, and manufacturing. This ensures our valves meet the highest performance and safety requirements.

5. Do you offer customization for bi-directional metal sealed butterfly valves?

Yes, as a leading bi-directional metal sealed butterfly valve supplier, we offer extensive customization options. This includes specific material grades (e.g., various stainless steels, alloys), specialized coatings, different actuation types (manual, electric, pneumatic), and custom face-to-face dimensions to meet unique project specifications.

6. What is the size range of your valves?

We offer sizes from DN15mm to DN1200mm (1/2″ to 48″).

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