HONGON: Your Premier Manufacturer of Triple Offset Butterfly Valves

 When your process involves superheated steam, sour gas, or abrasive slurries, you need a valve that can withstand extreme conditions without failing. HONGON (Shanghai Hongon Machinery Technology Co., Ltd.)​ is a leading triple offset butterfly valve manufacturer​ based in Shanghai, China, serving the global market since 2007.

We understand that in critical service applications, there is no room for compromise. That’s why we have dedicated ourselves to perfecting the design and manufacture of metal-seated butterfly valves.

⚙️ The Science Behind the Triple Offset Design

The magic of the triple offset butterfly valve​ lies in its elimination of friction. The third offset (the conical seat profile) creates a camming action. This means:
  • No Rubbing:​ The seat and disc never touch during opening or closing, eliminating wear and extending service life significantly.
  • Lower Operating Torque:​ Requires less force to operate, allowing for smaller, more cost-effective actuators.
  • True Bi-directional Sealing:​ Achieves bubble-tight shut-off from either direction.
  • Fire-Safe Design:​ The all-metal construction ensures the valve remains sealed even in high-temperature fire scenarios.

🏭 From Our Factory to Your Facility

HONGON is not a trader; we are a factory-direct manufacturer. This means:
  • Complete Quality Control:​ From raw material spectroscopy to final hydrostatic and fugitive emission testing, every step is managed in-house.
  • Customization (OEM/ODM):​ Need a specific alloy, connection standard (ASME B16.5, EN 1092), or face-to-face dimension (API 609, EN 593)? We can build it.
  • Certified Reliability:​ Our products are backed by ISO, SGS, and FAMI‑QS certifications​ and designed to meet API 609 Category A/B standards.

🛠️ Product Specifications at a Glance

Feature
Specification
Product Type​
Triple Offset Butterfly Valve (TOBV)
Size Range​
3" to 80" (DN80 to DN2000)
Pressure Rating​
Class 150 to Class 600 (PN10 to PN100)
Body Material​
Carbon Steel, Stainless Steel, Duplex, Monel, Inconel
Seat Material​
Hard-faced Stellite, Inconel, or other metal alloys
End Connection​
Flanged (RF, FF), Butt Weld, Lug

🤝 Partner with a Global Leader

We supply triple offset butterfly valves to clients in over 40 countries, supporting mega-projects in oil refineries, LNG plants, and power stations.
🔗 Contact our experts to discuss your extreme service valve requirements:​
👉 https://www.hongonvalve.com
👉 https://www.hongonvalve.com/shop/

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