Bray-Triple Offset Butterfly Valve

Manufacturer: Bray

Compared to gate, globe or ball valves of the same size and pressure class, Tri Lok provides space and weight savings while minimizing installation and maintenance costs.

Tri Lok is a premier isolation valve, well suited for operation in light vacuum to high pressure applications. The standard, non-rubbing, metal-to-metal sealing system is inherently firesafe. Applications requiring absolute zero leakage are ideally suited for triple offset technology.

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Features Applications Model

Replaceable Seat/Seal System
Triple Offset Cutaway Model
Tri Lok Series valves feature independent field replacement of both the seat and the seal ring. Should service conditions change, seat and seal ring materials may be substituted, without replacing the entire valve. Maintenance, downtime and costs are substantially reduced extending the overall service life of the valve.
Splined Disc/Stem Connection
Splined Disc Stem Connection
Tri Lok’s internal disc-to-stem connection eliminates external retention components, such as taper pins or keys. Potential issues associated with external connections, such as corrosion or vibration failure, are eliminated. Additionally, these external connections often require machining or grinding for removal. Disassembly of the Tri Lok disc and stem is as simple as sliding the shaft from the disc.

Valve bodies and discs are available in WCB Carbon Steel and CF8M Stainless Steel as standard. Low temperature Carbon Steel, Duplex Stainless Steel, Monel, Hastelloy® and NiAB are also available. The discs primary function is to "carry" the seal ring. As such, the disc material is commonly the same material as the body to allow full pressure/temperature rating and maintain uniform thermal expansion at elevated temperature. Standard stem materials are 17-4PH, 410 Stainless Steel and XM-19 (Nitronic®). Seat, seal ring and remaining trim are selected to meet the required mechanical properties while providing sufficient corrosion resistance. While the previously mentioned materials are defined as standard, custom engineered configurations are also available.

Mfr. Part No.	Description

Bray-Triple Offset Butterfly Valve

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