1. V701 Series
Venturi Seat Valve
Notes:

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 1” – 8” 10” – 16” Clamp bonnet Bolted 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

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

16. Industrias Controlpro S.A. de C.V.
Blvd. Antonio L. Rodríguez No Desp. 404-B Plaza Delphi Col. Santa Maria, Monterrey Nuevo León C.P
Teléfonos: (81) , (81) , (81)