Valves in Abrasive/Corrosive/Erosive Duties/FGD
Our collaboration with Clarkson (USA) commenced in 1989 and extended until 1997. During this period, we introduced the Elastomer Based Valve Technology to the Indian market, which stands as the finest Packingless Zero Leakage Knife Gate Valve globally. In 1997, Energo set up its own R&D team to subject the design of Packingless BiDirectional Elastomer Based Knife Gate Valves to a continuing dynamic development covering a very large range of Pressure, Temperature, Chemical, Physical, Corrosion, Erosion and Erosion of Corrosion resistance and many more severe applications. As a result, whether its Steel, Power, Aluminum, Chemical, Gaseous or complex mixtures of Solids / Gases or Solids / Acids / Plastics / Water / Saline water, Energo always has a customised model for all such users.
Performance-based Technology
- Zero Downstream Leakage
- Maintenance Free
- Meets Specific Flow Media System Requirements
- Takes Flow from Either Direction
- No Metal-to-Media Contact
- Long-lasting Gate Lubrication
Self Lubricating Seal
- No Gland Packing
- Full Port Flow
- Internal Cavities Eliminated
- Bi-Directional Mechanical Sealing
- No Gate Guides
Wet Ash Slurry Conveying Applications
- Ash slurry sump inlet chamber isolation
- Ash slurry pump suction
- Ash slurry pump discharge
- Ash slurry discharge pipe crossover
- Bottom ash jet pump discharge
- Hydrobin outlet
- Hydrobin ash water recycling / drain lines
- Bottom ash hopper feed gate housing
- Ash drain pump suction & discharge
- Chemical Dosing
Applications In Dry Fly Ash Vacuum
- Fly ash hopper isolation & material extraction
- Branch segregation & crossovers
- Ash cyclone collector dump gates
- Ash cyclone collector vacuum / pressure equalising
- Ash silo outlet
- Vacuum line branch segregation & crossovers
- Vacuum breaker
Pressure Based Fly Ash Conveying Systems
- Fly ash hopper isolation
- Ash conveying branch segregation and crossovers
- Silo outlet
Other Power Plant Applications
- Cooling Water Intakes
- Cooling Tower Basin Drainage
- Plant Effiuent Handling Systems
Mining & Mineral Processing
Where extremes of particle size are encountered, from slimes of less that 50 microns to particles often as large as 40 millimetres, the EFA Valve is the logical choice. It is designed to meet this wide range of conditions and provides maximum abrasion resistance even when passing or isolating slurries as high as 65% by weight. EFA Valves are ideally suited for heavy & medium slurry circuits.
- Tailing distribution
- Hydro-cyclone and pump isolation
- Thickener underflow shut off
- Storage tank dump
- Flotation feed shut off
- Filter tank dump
- Leach circuits
Aluminium Industry
Alumina mining/refinery involves most severe abrasive slurry applications, including caustic & alumina concentrates.
- Milling circuits
- Digestion Circuits
- Green Liquor Pump Isolation
- Classifier Circuits
- Hotwell Pump Isolation
- Settler Pump/Tank Isolation
- Washer Pump Isolation
- Mining Slurry Circuits
- Thickener Isolation
- Spent Liquor Circuits
- Filter Circuits
Iron & Steel Industry
- Pump Suction & Discharge
- Classifier Circuits
- Slurry Tank Outlet, Distribution & Drain Lines
Environment & Public Health Projects
- Raw Water Pump Isolation
- River Raw Water Intake Well Ports
- Clarifier/Filter Effiuent Discharge Line
- Launder Channel Isolation
- Filter and Isolation
- Air Damage Isolation
- Sea Water Intake Systems
- Breweries’ Effiuent Discharge
- Wine Crushing Tank Outlet
- Bottle Washing
- Oily Sludge Slurry Pump Isolation
- Effiuent Treatment Circuits
Industrial Process Applications
- Soda Ash Slurry
- Phosphoric Acid
- Phosphate Ore Change Pump
- Bleaching Circuits
- Metal Reclaiming Cyclone Circuits
- Caustic Soda Slurry
- Sulphur Recovery Systems
Pulp & Paper
The EFA Valves are used where ultra heavy duty equipment is necessary, especially in severe duty applications, including gritpots, de-inking and recycling applications.
- High density stock cleaner cyclone trash recovery
- Green liquor transfer lines
- Lime mud to washer
- Chlorinated stock transfer lines
- White liquor tank discharge
- Black liquor transfer line
- Brown stock pump isolation
- Pulp stock to repulpers
- Groundwood slurry pump isolation
- Mill water pump isolation
- Fly ash disposal pump isolation
- Bleached stock high density isolation
- High density stock isolation
- Wood yard river water pump isolation
- Paper machine stock feedv
- Primary paper stock grit pot service
- Dry lime pneumatic conveyor
- Recovery gas vent isolation
- Blow down tank isolation
Sand and Gravel
- Sand Slurry Pump Isolation
- Silica Sand Cyclone and Pump Isolation
Energo has developed First 1500 NB Indian packingless Bi-directional Elastomer based Zero leakage Valve for FGD Duty.
FGD Valves (Flue Gas Desulfurization)
FGD is a continuous plant, therefore, reliability is of highest importance if leaked lime slurry collects d/s in casings, it can cause impeller to freeze and prevent it from turning when the pump is started. The resulting high start up torque can damage or break the pump shaft.
Following Lime Slurry Characteristics makes the duty conditions very challenging!
Lime Slurry is corrosive and abrasive Lime particles do not dissolve, remained suspended in solution
- Lime slurry comprise of 30% solid ground to < 44μ, fine particles have strong tendency to accumulate in cracks, crevices, voids, cavities in valves
- Lime hardens in collection points
- Lime scales into a solid mass
- Back deposits can freeze a valve
- Actuators need generous sizing
Energo’s FGD Valves factor all these aspects and offers the ideally suited designs for variety of FGD Applications:
- Lime Slurry
- Gypsum
- Waste Water
- Process Water
- Dewatering System
- Filtrate
- Reclaim
- Mist Eliminator Wash
- Chemical Dosing
The Series EFC Muscle Valve is the most rugged, longest wearing, and the most economical valve available for slurry throttling control!
