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V701 Series Venturi Seat Valve: High Performance for Erosive Services

The V701 Series Venturi Seat Valve is engineered for effective flow control in erosive applications, accommodating sizes from 1" to 16" and ANSI Classes 150 to 600, with options for 1500 and 2500. Made from durable body materials such as carbon steel and stainless steel, it features a specialized design that reduces outlet velocity and enhances fluid dynamics. Ideal for power plants and slurry services, it supports heavy-duty actuators including REXA and pneumatic systems to ensure reliable operation in demanding environments.

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V701 Series Venturi Seat Valve: High Performance for Erosive Services

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  1. V701 Series Venturi Seat Valve

  2. V701 Series • Size range: 1” – 16” • ANSI Class 150 – 600 • Class 1500 & 2500 also available • Body Materials: CS, SS, CM • End Connection: Flanged (retains seat ring) • Trim • 17-4PH and 316SS available • Chrome-Iron for severe services • As hard as tool steel, HRC 53 (min.)

  3. V701 Design • Designed for erosive services • Slurries: Alumina Bauxite • Flashing services: power plants prior to anti-cavitation trims • Expanded body reduces fluid velocity by 50% • Large diameter stem and long guide engagement

  4. Venturi Seat • Flow over design • Venturi seat reduces outlet velocity as it enters downstream pipe or vessel. • Often connected directly to vessel or sacrificial pipe. • Reduced trim is standard • Full may be available

  5. V701 Bonnets • Clamp bonnet • Union nut • Pressure seal • Holds plate for bonnet mount • Bolted bonnet • Integral actuator mounting pad 1” – 8” 10” – 16”

  6. Actuator Selection • Flow over and high seat load require stiff high thrust actuators. • Perfect application for REXA • Historically used • Pnuematic pistons (Conoflow) • Hydraulic pistons (Ortman) • Rotomotor (Hammel Dahl) • Some small units have used S/D

  7. Rotomotor • All pneumatic • Heavy duty • Gear driven • Integral positioner • High thrust / torque • Long stroke • Once state of the art • now long obsolete

  8. Rotomotor Operation • Pneumatic positioning system • 4-way pilot valve • Reversible air driven motor • Gear drive

  9. Rotomotors on 14” V701 in Louisiana

  10. Bayer Process To turn bauxite into alumina; • Grind the ore & mix it with lime and caustic soda • Pump mix into high-pressure containers & heat • The aluminum oxide is dissolved by the caustic soda, then precipitated out of this solution, washed, and heated to drive off water. • What’s left is the white powder called alumina, which is transformed into aluminum metal in the smelting process.

  11. Bauxite Processing • Digestion • Clarification • Precipitation • Calcincation

  12. Voith Hydro • Needle Valves, 8” – 16” • Bypass / start-up for Main control valve

  13. Valtek - Survivor • This is what Valtek does • Unbalanced • Flow over • Piston • Optional PSZ ceramic trim • Fisher – 461 • Caldera Eng.

  14. Industrias Controlpro S.A. de C.V. Blvd. Antonio L. Rodríguez No. 3058 Desp. 404-B Plaza Delphi Col. Santa Maria, Monterrey Nuevo León C.P. 64650 Teléfonos: (81) 8356-2582, (81) 8356-1907, (81) 8356-1898 icontrolpro@prodigy.net.mx www.industriascontrolpro.com

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