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Bray Flow-Tek - Model Triad Series -Ball Valves
Flow-Tek`s Triad Series ball valves feature live loaded stem seals and a redundant body seal design. Available in full and standard port models, these rugged, high pressure three piece valves are ideal for process, severe service, high temperature, and high cycle applications. Secure Mount: Triad Series valves offer ease of automation due to an integrally cast actuator mounting pad that complies with ISO 5211 standards through 2` valve sizes.
The three piece body design of the Triad Series offers many advantages, including installation flexibility, elimination of the need for two sets of flanges, and ease of in line and out of line servicing. These time saving features are beneficial for process industries, automated valves and welded piping systems by reducing costly downtime. During maintenance the actuator and accessories can remain mounted on the valve body. The entire valve and actuator assembly is easily reinstalled with no need for recalibration of the unit.
In Line Servicing: To perform in line maintenance, remove the body bolts on opposing sides of the center body, loosen the 2 bolts at the top of the valve and swing the body up. The valve can swing to the left or right depending on which bolts are removed. All body components can be serviced in this position without disturbing the piping system.
Out-of-Line Servicing: For complete removal of valve from the line, remove all body bolts, then lift the valve body out of the pipeline. The removed body can be serviced or replaced, then reinstalled without needing to realign the end connections or the piping system.
- [A] Body Bolts: As standard Triad Series valves feature hex head bolts to join end connections to the tapped valve center section. This design, in lieu of a through bolt design, ensures precise alignment of the end caps – minimizing potential problems such as bolt shrinkage and elongation in severe temperature and thermal cycling applications. Less bolting movement reduces the chance for body seal failure.
- [B] Ball: Flow-Tek balls are precision machined and mirror finished for bubble-tight shutoff with less operating torque. Ball edges have machined curvatures to reduce seat wear and provide a high cycle life. As an added safety feature, a hole in the stem slot of each ball equalizes pressure between the body cavity and the line media flow.
- [C] Body: Valve bodies are investment cast and solution annealed/normalized for the highest quality and added strength. Stainless Steel bodies and end caps are passivated. Carbon Steel bodies are phosphate coated for increased corrosion resistance. All body castings are marked with a foundry heat number for full traceability to ASTM standards.
- [D] Seat: Flow-Tek`s seat design ensures bi-directional, bubble-tight sealing while providing the lowest possible torque. Resilient seats feature relief slots or O.D. clearance to relieve pressure past the upstream seat. This design reduces friction, minimizes seat wear and lowers operating torque.
- [E] End Connections: The Triad Series is available with threaded, socket weld, butt weld, extended socket weld and butt weld, ASME 600 flanged or custom connections.
- [F] Double Lock Nut Design: Double lock nuts allow handles to be easily and safely removed while the valve is under full line pressure.
- [G] Live-Loaded Stem Seals: The live-loaded seals considerably increase the number of cycles between maintenance adjustments.