شیر پروانهای سهگانه غیر هممرکز
قطر اسمی：2"-200"(DN50-DN5000)
فشار اسمیکلاس ۱۵۰-کلاس ۲۵۰۰ (۱.۰ مگاپاسکال-۲۵۰ مگاپاسکال)
حداکثر دمای عملیاتی۴۲۵ درجه سانتیگراد
جنس پوسته： دبلیو سی بی，شورای جهانی کشتی (WCC)，A105，F304，اف۳۱۶，F316L，N06625，CF8، CF3، CF3M، CW6MC، CY40، M35-1اینکونل ۷۱۸，N10276，سیاف۸ام，مونل K500
استانداردهای طراحی:API 609، AWWA V504، GB/T 12238، EN 593، DIN 3354، JIS B2034
اتصال：بست، فلنج، جوشکاری
حالت رانندگی： دستی، برقی، پنوماتیک، هیدرولیک
شیر پروانهای سهگانه غیر هممرکز
تعریف محصول و ماموریت ایمنی:
The Triple Eccentric Butterfly Valve employs a unique third eccentric sealing cone offset technology to form an oblique cone geometric sealing structure, achieving zero-friction contact throughout the opening and closing process. This triple eccentric butterfly valve was specifically developed to overcome sealing challenges in extreme operating conditions. Its metal-to-metal hard seal ensures zero leakage within a Class 600 pressure rating and a temperature range of -196°C to 650°C, completely solving leakage problems in industries such as petroleum and chemical manufacturing.
JH Triple Eccentric Butterfly Technology Core
- Triple eccentric topology seal: sealing surface contact angle ≥88° | zero friction opening and closing (API 609 standard)
- Ultra-hard sealing surface: Stellite alloy weld overlay hardness ≥62HRC (ASTM A488)
- High pressure adaptability: Pressure rating up to Class 600/PN100 (ASME B16.34)
- High-Temperature Reliability: API 607 Fire Resistance Certified | Remains Sealed at 650℃
- نمودار آناتومی
- Metal Sealing Series
- Structural Series
The revolutionary design of the شیر پروانهای سهگانه JH is embodied in its triple eccentric topology sealing system: the first eccentricity offsets the valve shaft from the pipeline center, the second eccentricity offsets the valve shaft from the sealing surface center, and the third eccentricity forms a tapered geometric seal through the offset of the sealing cone angle; the ultra-hard sealing surface uses Stellite alloy overlay welding technology to maintain zero leakage under a pressure difference of 42MPa; intelligent torque management uses an adaptive system to control the operating torque deviation within ±5%; the bidirectional pressure seal adopts a symmetrical valve seat design, breaking through the limitations of unidirectional pressure bearing technology. This complete technical system enables the triple eccentric butterfly valve to exhibit superior performance in extreme operating conditions.
Meeting the demands of high temperature and high pressure operating conditions, ensuring protection under extreme conditions, the triple eccentric butterfly valve offers a professional sealing solution.
فرآیندهای اصلی:
▌ Stellite Alloy Seal → Supersonic Spraying Process | Hardness ≥ 62HRC
▌ Tungsten carbide hard seal → Integral sintering technology | 300% improvement in wear resistance
▌ Fire-resistant safety seal → API 607 certified | Fire-resistant sealing guarantee
▌ Cryogenic-Specific Seal → Low-Temperature Material Optimization | Remains Elastic at -196℃
Specialized structural design for different working conditions, professional topology design, and precise eccentric configuration of triple eccentric butterfly valves.
فرآیندهای اصلی:
▌ Standard triple eccentric design → 88° cone angle design | Zero-friction opening and closing
▌ High-pressure reinforced type → Stiffened rib structure | Pressure-bearing capacity increased by 40%
▌ High-temperature compensation type → Thermal expansion adaptive | Stable sealing at 650℃
▌ Corrosion-resistant special → Fully lined design | Improved corrosion resistance
طراحی هسته و مزایا
- آببندی توپولوژی بدون اصطکاک: This Triple Eccentric Butterfly Valve features a tapered geometric seal design → zero friction throughout the opening and closing process | Service life ≥ 100,000 cycles
- Hard alloy seal: This triple eccentric butterfly valve is equipped with Stellite alloy seals → zero leakage at 42MPa differential pressure | API 598 certified.
- High Temperature and High Pressure Adaptability: The JHTriple Eccentric Butterfly Valve features a chromium-molybdenum steel valve body → Creep strength ≥180MPa at 650℃ | Complies with ASME B31.3 standards.
- مدیریت هوشمند گشتاور: This triple-eccentric butterfly valve integrates a torque adaptive system → operating torque deviation ±5% | ensuring smooth and reliable operation.
- Superior Corrosion Resistance: This Triple Eccentric Butterfly Valve features a tungsten carbide coating → passed a 2000-hour salt spray test | meets ASTM B117 standards.
- آببندی فشاری دو طرفه: This triple eccentric butterfly valve features a symmetrical seat design → two-way Class 600 seal | breaking through the limitations of unidirectional pressure bearing.
سایر محصولات
سوالات متداول-شیر پروانهای سهگانه غیر هممرکز
Triple Eccentric Butterfly Valves are specifically designed for extreme conditions requiring zero leakage and long service life. They are widely used in petrochemical plants, LNG facilities, power station main steam systems, and high-temperature metallurgical media applications where exceptional sealing performance and reliability are critical, particularly in high-temperature high-pressure, corrosive media, and frequently operated harsh environments.
Triple Eccentric Butterfly Valves achieve three key technological breakthroughs:
Tapered Seal: Tapered sealing surface design optimizes stress distribution
Zero Friction: Completely friction-free during opening/closing, significantly extending service life
آب بندی دو طرفه: Achieves bubble-tight sealing under both forward and reverse pressures
Wider Temperature Range: Suitable for temperatures from -196°C to +650°C
پارامترهای زیر هنگام انتخاب نیاز به توجه ویژه دارند:
دمای فشار: Maximum working pressure and temperature fluctuation range
ویژگیهای متوسط: Corrosiveness, abrasiveness, phase changes
کلاس آب بندی: Zero leakage or compliance with API 598/ASTM standards
نوع اتصال: RF/RJ flanges, butt weld ends, or special connections
Material Combination: Material pairing for body, disc, and seat
توجه ویژه در هنگام نصب شامل موارد زیر است:
تأیید جهت جریان: Install strictly according to medium flow direction marked on valve body
کنترل گشتاور: از آچارهای گشتاور استفاده کنید و مراحل سفت کردن پیچها را دنبال کنید.
Thermal Expansion Compensation: Reserve thermal expansion gaps for high-temperature applications
پاکیزگی: Ensure complete absence of impurities inside pipeline
دقت ترازبندی: Use laser alignment to ensure installation precision
We ensure zero leakage through precision design and manufacturing:
آب بندی فلزی: Metal-to-metal sealing structure
Taper Angle Calculation: Precisely calculate optimal taper angle based on operating conditions
درمان سطحی: Hardening or coating treatment on sealing surfaces
طراحی الاستیک: Seat design with elastic compensation capability
آزمایش دقیق: Each valve passes zero leakage tests
Our Triple Eccentric Butterfly Valves support a complete certification system including CE, ISO 9001, API 609, ABS (American Bureau of Shipping), BV (Bureau Veritas), CCS (China Classification Society), fire safety certifications, and environmental certifications such as TA-LUFT.
We guarantee high-temperature performance through special design:
انتخاب مواد: Use high-temperature alloy steels or stainless steels
محاسبه انبساط حرارتی: Precisely calculate thermal expansion coefficients of all components
بهینهسازی سازه: Special structure compensates for thermal deformation
Heat Treatment: Special heat treatment for critical components
تأیید عملکرد: Verified through high-temperature pressure testing
We provide deep customization services and can customize ultra-high temperature versions, cryogenic versions, sour service versions, nuclear-grade valves, and special products complying with NACE MR0175 and SIL level certifications according to customer requirements.