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Technical guide · August 2, 2026

Triple Offset Butterfly Valves for Severe Service

Design principles and selection criteria for triple-offset metal-seated butterfly valves.

Triple Offset Butterfly Valves for Severe Service

Triple-offset geometry creates a cam action that reduces rubbing between the seat and sealing ring. It is used for higher-temperature and demanding isolation duties.

Geometry

Three offsets separate the sealing surfaces during most of the stroke and minimise wear.

Sealing system

Laminated or solid metal arrangements are selected for pressure, temperature and leakage requirements.

Applications

Common duties include steam, hydrocarbons, power and high-temperature process isolation.

Specification

Confirm flow direction, differential pressure, fire-safe or emissions requirements and actuator torque.

Information to include with an enquiry

Provide nominal size, pressure rating, medium, temperature, connection standard, materials, operating method, required testing and project documentation. Greysen will review the duty and confirm the final configuration in the approved data sheet.

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Specify the right butterfly valve for your project.

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