Main Features of High Performance Butterfly Valve

‌High-Performance Butterfly Valve‌ is an industrial valve that overcomes the sealing and pressure limitations of traditional butterfly valves. Its design integrates ‌double/eccentric triple-offset structures, high-performance sealing materials, and precision machining technology‌,

delivering the following Core Advantages:

‌1. Superior Sealing Performance‌

• The ‌triple-offset structure‌ achieves ‌“wedge effect” sealing‌ upon closure, meeting ‌ANSI Class VI zero-leakage standards‌ (leakage rate as low as ‌10⁻⁶ cc/sec‌), far exceeding conventional butterfly valves.
• ‌Soft sealing‌ (e.g., ‌fluororubber, PTFE‌) suits low-temperature applications, while ‌hard sealing‌ (metal-to-metal or carbide) withstands ‌600°C high temperatures‌ and ‌aggressive media‌.

‌2. High-Pressure Resistance & Longevity‌

• Rated for ‌Class 150 to Class 2500 (PN16 to PN420)‌, ideal for ‌supercritical fluids‌ and ‌high-pressure gas pipelines‌.
• ‌Hard-sealed valves‌ offer ‌100,000+ cycles‌, soft-sealed valves ‌~50,000 cycles‌, with ‌low maintenance costs‌.

‌3. Low Friction & Energy Efficiency‌

• Eccentric design ‌reduces sealing friction‌, lowering ‌operating torque by 50%+‌ and minimizing flow resistance.
• ‌Flow coefficient ≈3× that of single-seat valves‌ of the same size, optimized for ‌high-flow applications‌.

‌4. Material Versatility‌

• Body materials: ‌carbon steel, stainless steel, alloy steel, and corrosion-resistant alloys‌ (e.g., ‌Hastelloy C-276‌).
• Resistant to ‌acids, alkalis, salts, etc.‌, suitable for ‌harsh environments‌ like chemical plants and offshore projects.

Main Features:

1. Bi-directional flowing medium.

2. Double eccentric rotary and cam design.

3. Sealing pair: gradient functional materials such as martensitic stainless steel, austenitic stainless steel, cemented carbide, cermet, synthetic diamond and so on according to different hardness request.

4. Automatically alignment for range of working condition.

5. High quality sealing specific pressure, the high hard sealing pair can achieve zero leakage.

6. No friction between the sealing pairs: It has the characteristics of eccentric half ball valve, globe valve and wedge gate valve.

7. Small installation dimension & Small fluid resistance.

8. Its main structure is similar to butterfly valve, sealing type is similar to ball valve.

9. Range of Working temperature: 0℃~425℃.

10. Connecting type: Flange BW.

11. Range of application: Petroleum and petrochemical, metallurgy, chemical industry, electric power, gas, water conservancy, municipal administration, and construction industries, etc.