V701 Series
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CONTROL VALVES KOSO HAMMEL DAHL V701 Series Venturi Seat Valve
description
V701 Series. Venturi Seat Valve. 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 - PowerPoint PPT Presentation
Transcript of V701 Series
CONTROL VALVES
KOSO HAMMEL DAHL
V701 Series
Venturi Seat Valve
CONTROL VALVES
KOSO HAMMEL DAHLV701 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.)
CONTROL VALVES
KOSO HAMMEL DAHLV701 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
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KOSO HAMMEL DAHLVenturi 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
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KOSO HAMMEL DAHLV701 Bonnets
• Clamp bonnet– Union nut– Pressure seal– Holds plate
for bonnet mount
• Bolted bonnet– Integral
actuator mounting pad
1” – 8” 10” – 16”
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KOSO HAMMEL DAHL
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
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KOSO HAMMEL DAHLRotomotor
• All pneumatic• Heavy duty• Gear driven• Integral positioner• High thrust / torque• Long stroke• Once state of the art
– now long obsolete
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KOSO HAMMEL DAHLRotomotor Operation
• Pneumatic positioning system
• 4-way pilot valve
• Reversible air driven motor
• Gear drive
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KOSO HAMMEL DAHLRotomotors on 14” V701 in Louisiana
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KOSO HAMMEL DAHLBayer 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.
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KOSO HAMMEL DAHLBauxite Processing
• Digestion
• Clarification
• Precipitation
• Calcincation
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KOSO HAMMEL DAHLVoith Hydro
• Needle Valves, 8” – 16”• Bypass / start-up for Main
control valve
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KOSO HAMMEL DAHL
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KOSO HAMMEL DAHL
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KOSO HAMMEL DAHLValtek - Survivor
• This is what Valtek does – Unbalanced– Flow over– Piston
• Optional PSZ ceramic trim
• Fisher – 461• Caldera Eng.
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KOSO HAMMEL DAHL
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. 64650Teléfonos: (81) 8356-2582, (81) 8356-1907, (81) 8356-1898
