The triple-eccentric, multi-layered, hard-seal butterfly valve series offers long life, zero leakage, and is an energy-saving butterfly valve.
Features And Applications
The triple-offset, multi-layered, hard-seal butterfly valve series boasts long service life, zero leakage, and serves as an energy – efficient butterfly valve. It complies with national standards including JB/T8527 (Metal Hard – Seal Butterfly Valves) and GB/T13927 (General Valve Pressure Test), as well as other pertinent valve standards. This product adopts a three – dimensional eccentric design. The sealing ring features a multi – layered structure that integrates hard and soft sealing. It is applicable for regulating and shutting off fluids in pipelines where the medium temperature reaches up to 650°C, such as in metallurgy, power generation, petrochemical, air, gas, water supply and drainage industries. It provides reliable sealing performance and signifies the expansion and advancement of general – purpose butterfly valves into medium – and high – pressure application scenarios. Based on this structure, polytetrafluoroethylene (PTFE) can replace the multi – layered sealing ring, giving rise to a new generation of triple – eccentric, PTFE – sealed butterfly valves which are widely utilized in corrosive media with temperatures below 200°C.
Advantages
• The disc seal is a multi-layered, hard-soft seal, offering the advantages of both hard and soft sealing, ensuring excellent sealing performance in both low and high temperature operating conditions.
• The triple-eccentric structure creates virtually frictionless contact between the valve seat and disc, resulting in a tighter seal with zero leakage.
• Low opening and closing torque, flexible operation, energy-saving operation, and a long service life.
• High-temperature, high-pressure, and corrosion-resistant, it offers a wide range of applications.
• The new generation triple-eccentric PTFE-sealed butterfly valve combines the advantages of a triple-eccentric seal structure with a soft seal, resulting in reliable sealing performance, a wide range of applications, and a longer service life.
• The optional electric and pneumatic actuators are high-quality domestic and international brands (customizable), providing even more reliable performance.
Adoption Standards
| Country of Standard | Manufacturing standards | Flange standards | Structural length standard | Inspection standards |
| China GB | GB/T12238 | GB/T9113.1 | GB/12221 | GB/T13927 |
| USA | API 609/ANSIB16.34 | ANSI 16.5/MSS-SP-44 or API 605 | ANSI B16.10 | API 598 |
| Japan JIS | JIS B2004 | JIS B2212 | JIS B2002 | JIS B2003 |
Main Technical Parameters
| Nominal diameter | DN (mm) | 65~2000 | 100~600 | |||
| Nominal pressure | PN(MPa) | 0.6 | 1 | 1.6 | 2.5 | 4 |
| Shell strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6 | |
| Test pressure | ||||||
| Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | 4 | |
| Air tightness test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Applicable media | Water, steam, oil, acid corrosive media, etc. and dust particles | |||||
| Applicable temperature | -29℃≦Carbon steel≦425℃, -40℃≦Stainless steel 600≦℃, Chrome-molybdenum steel 650≦℃ | |||||
| Drive type | Handle, worm gear box, electric, pneumatic | |||||
Specialization in the production of ball valves, butterfly valves, and other specialty valves for various industrial applications.
Certifications of ISO 9001, CE, API 6D, and API 607, ensuring product quality compliance with international standards.
Specialization in the production of pneumatic valve actuators, along with the provision of comprehensive automated control solutions.
Have questions about our valve? Here are some of the most frequently asked questions to help you better understand our products and services. Feel free to contact us for more details!
If you don’t find the answer you’re looking for, feel free to contact us directly—we’re here to assist you every step of the way.
We specialize in industrial valves, including ball valves, butterfly valves, gate valves, and check valves, serving multiple industries, including power generation, petrochemicals, energy storage, marine, and nuclear power.
Our products are certified by ISO9001, API 6D, CE, TSG, CCS, and DNV, meeting international quality and safety standards.
Yes, we offer customized solutions in terms of material, structure, size, and functionality based on our customers' application requirements.
We offer a full lifecycle service, including selection consultation, installation and commissioning, on-site repairs, spare parts supply, and emergency response.
Whether you need valve selection consultation, customized solutions, or after-sales technical support, our team will provide you with fast and professional service.
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