Home / Product / 气动阀 / DK67-FB-G Pneumatic Hard Seal Triple Offset Flanged Butterfly Valve - High-Performance Isolation

Catalog: 气动蝶阀

Model:

DK67-FB-G

DK67-FB-G Pneumatic Hard Seal Triple Offset Flanged Butterfly Valve – High-Performance Isolation

The DK67-FB-G Pneumatic Triple Offset Butterfly Valve (TOBV) is the top choice for severe service applications requiring absolute isolation under extreme conditions. It features a Hard Seal (Metal-to-Metal) design and the geometrically superior Triple Offset structure, ensuring zero-leakage shutoff even at high temperatures, high pressures, and with abrasive media. The robust flanged body provides critical stability. Coupled with a powerful pneumatic actuator, this valve delivers fast, reliable quarter-turn operation for critical shutoff in power generation, refining, and petrochemical processes.

Size Range: DN40-DN1200

Material:Cast Iron, WCB, SS304/316 etc.

Connection Standard: GB / ANSI / JIS /DIN

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Features

A heavy-duty pneumatic triple offset butterfly valve with a metal-to-metal hard seal, providing fast, automated, zero-leakage isolation for severe high-temperature, high-pressure, and critical industrial services.

✅Zero-Leakage Triple Offset Design (TOBV): The advanced triple-offset geometry ensures that the disc only contacts the seat at the final point of closing, eliminating friction, minimizing wear, and providing genuine, repeatable zero-leakage (ANSI/FCI 70-2 Class VI equivalent) shutoff.

✅Hard Seal (Metal-to-Metal) Capability: Features a hard-sealed seating surface, offering extreme resistance to temperatures, high pressures, and erosion from abrasive particles or coking, where soft-seated valves would quickly fail.

✅High-Speed Pneumatic Control: The pneumatic actuator provides immediate, high-torque, quarter-turn actuation, crucial for fast-acting isolation and emergency shutoff (ESD) in severe service pipelines.

✅Robust Flanged Connection: The flanged connection ensures a secure, high-integrity, and stable seal to the pipeline, maintaining alignment and safety under the stress of high pressure and temperature cycling.

✅Bi-Directional Sealing: The design typically allows for tight shutoff regardless of the flow direction, enhancing reliability in critical processes where backflow prevention is necessary.