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High-Performance Valve
Triple-Offset Butterfly Valve
Unique triple-offset design eliminates seal friction, delivering zero leakage, long service life, and high temperature/pressure resistance for demanding applications.
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The triple-offset butterfly valve achieves true zero leakage through a unique cam-action design: the disc seat lifts off the body seat instantaneously when opening, eliminating friction and wear. This torque-seated metal-to-metal seal delivers exceptional performance in high-temperature, high-pressure, and critical isolation applications.
Suitable for temperatures from -196°C to 815°C and pressure ratings up to Class 2500.
Key Features
- Friction-Free Operation: Three offsets ensure the seat contacts only at final closure — zero rubbing
- Zero Leakage: Metal-to-metal torque-seated design achieves Class VI shutoff (API 598)
- Fire-Safe: API 607 and ISO 10497 certified — no soft seals to fail under fire
- Bidirectional: Seals equally well in both flow directions
- Long Service Life: No wearing parts in the sealing mechanism
Technical Specifications
Size RangeDN80 ~ DN2000
Pressure RatingClass 150 ~ 2500
Temp Range-196°C ~ 815°C
Body MaterialWCB, CF8M, WC6, WC9
产品概述
三偏心蝶阀通过独特的凸轮作用设计实现真正的零泄漏：开启瞬间蝶板密封面与阀座密封面立即脱离，消除了摩擦和磨损。扭矩密封金属对金属密封在高温、高压和关键隔离应用中表现优异。
适用温度范围 -196°C 至 815°C，压力等级可达 Class 2500。
核心特点
- 无摩擦操作：三偏心设计使密封面仅在最终关闭时接触——零摩擦
- 零泄漏：金属对金属扭矩密封，Class VI 关断等级（API 598）
- 防火安全：API 607 / ISO 10497 认证，火灾工况无软密封失效风险
- 双向密封：正反流向同等密封性能
- 长寿命：密封机构无易损件
技术规格
口径范围DN80 ~ DN2000
压力等级Class 150 ~ 2500
温度范围-196°C ~ 815°C
阀体材质WCB, CF8M, WC6, WC9