VARISCO
Varisco's heavy duty submersible dredging pumps offer solutions for pumping settled slurry containing solids up to 5” and concentrations up to 70% by weight of the liquid.
Standard sump pumps have difficulty with solids that settle in the bottom. The normal intake velocity does not have enough force to pick them up and pump them to a sufficient extent. Almost all the liquid is pumped, while the bulk of the solids remain.
With the HD pumps the agitator prevents the solids from blocking the pumps intake scteen and mixes them with the liquid, creating a slurry that can be pumped easily.
See Varisco company information
Benefits
- Long life - wear parts built to last
- Suit a wide range of applications
- Agitator ensures solids are pumped
- Rugged design
Features
- Shock proof ductile iron casing
- Wear parts in special alloy with high chromium content
- Solids handling up to 120mm
- Flows up to 1200m3/hour (20,000 litres per minute)
- Sizes from 3" to 14" (3.7kW to 295kW)
- Hydraulic & electric options
- Hydraulic power packs available
- Extra excavators option
Applications
- Waste ponds
- sludge handling
- Dredging waste
- Mine tailings
- Crusher sumps
- Bentonite slurry
- Marina & harbour silt removal
- Any other applications with sludges or with high solids content
Varisco V
- Constant capacity, directly proportional to the rotational speed and virtually independent of the pressure
- Smooth flow, without pulses or pressure peaks which could cause vibrations in the pipework
- Rugged, heavy duty construction. Low rotor peripheral speed. External pedestal bearing housing with oversize ball bearing to take axial and radial loads
- Preheating. Heating chamber cast integral with the casing or mounted on the cover or gland.
- By-pass relief valve. This is mounted on the pump and can easily be adjusted
Varisco V TRM
- Leaks of pumped liquids totally eliminated (fully hermetic).
- Low rotor peripheral speed and oversize silicon carbide bearings assure rugged, heavy-duty construction and durability.
- No more costs associated with replacing mechanical seals, which are often very expensive, and production loss due to plant stoppages.
- Servicing intervals are longer, particularly useful when pumps are located in awkward places.
- Pumping in both directions of rotation (reversibility).
- Constant flow rate (proportional to rotation speed) and continuous flow without pulsation.
- Heating jacket can be applied.
- Self-priming.
- Ports can be placed in various positions with respect to support foot.
- Relief valve can be fitted.
V-TRM pumps are used for pumping viscous liquids, and can even cope with abrasive solids due to the correct sizing of the drive cooling channel.
VARISCO with hydraulic engine
Varisco's heavy duty submersible dredging pumps offer solutions for pumping settled slurry containing solids up to 5” and concentrations up to 70% by weight of the liquid.
Standard sump pumps have difficulty with solids that settle in the bottom. The normal intake velocity does not have enough force to pick them up and pump them to a sufficient extent. Almost all the liquid is pumped, while the bulk of the solids remain.
With the HD pumps the agitator prevents the solids from blocking the pumps intake scteen and mixes them with the liquid, creating a slurry that can be pumped easily.
Benefits
- Long life - wear parts built to last
- Suit a wide range of applications
- Agitator ensures solids are pumped
- Rugged design
Features
- Shock proof ductile iron casing
- Wear parts in special alloy with high chromium content
- Solids handling up to 120mm
- Flows up to 1200m3/hour (20,000 litres per minute)
- Sizes from 3" to 14" (3.7kW to 295kW)
- Hydraulic & electric options
- Hydraulic power packs available
- Extra excavators option
Applications
- Waste ponds
- sludge handling
- Dredging waste
- Mine tailings
- Crusher sumps
- Bentonite slurry
- Marina & harbour silt removal
- Any other applications with sludges or with high solids content
EXCAVATORS
The hydraulic excavators are usually mounted on the sides of the pump, and stirs up solids on the bottom to mix them with the liquid. Together with the action of the agitator mounted on the pump, the resulting slurry is drawn into the pump suction and pumped out.