Water in a natural pond must circulate. Always. This is a fundamental principle. For volumes in a domestic natural pond, it is usually adequate one circulation pump or at most two in parallel. Even here the choice is to opt for pumps with low energy consumption and durable quality.
The factors affecting the choice are:
Innovative pumps, equipped with highly efficient technology. Permanent magnet motor with 6-pole direct current with electronic speed regulation.
The VarioFlow pumps have a continuously adjustable flow from 0 to 100%, in 1% increments. The reduction in flow allows a proportional reduction in consumption.
Normally, when a traditional pump is installed, a flow control valve is used without any benefit in terms of consumption; with these DC pumps, on the other hand, through digital control, a great saving on energy consumption is also achieved.
Pumps with next-generation technology:
• High efficiency neodymium permanent magnet motor
• 6-pole motor with high torque and excellent control characteristics
• External control panel with frequency regulator for variable speed control
• Can be used in dry or in water
• Fully adjustable
• Dirt passage with basket: 8 mm
• Dirt passage without basket: 12 mm for Varioflow-E 10
• Dirt passage without basket: 16 mm for Varioflow-E 20
• Integrated memory for automatic saving of settings in the event of a power failure
• Display of error codes for: overvoltage, undervoltage, water shortage / dry running, phase failure, pump block, overload
• Engine, monitor and microprocessor of European design
• Voltage 230 V / 50 Hz
| VarioFlow-E 10 | VarioFlow-E 20 | VarioFlow-E 30 | |
| Motor (W) | 0-80 | 0-160 | 0-285 |
| Max flow rate (l/h) | 9800 | 20000 | 29500 |
| Max head (m) | 5 | 5,3 | 7 |
| Connection | 1"½ | 2" | 2" |
| Dimensions L x l x h | 290 x 130 x 175 | 360 x 160 x 225 | 360 x 160 x 225 |
| Impeller pitch (mm) | 8 | 8 | 8 |
| Cable (m) | 10+1,5 | 10+1,5 | 10+1,5 |
• VarioFlow-E pump with 10 meter power cable.
• Control panel with 1.5 meter power cable.
• VarioFlow-E 10: fittings for 25/32/40 mm tubes and 40 mm glue-on fittings.
• VarioFlow-E 20/30: fittings for 32/40/50 mm tubes and 50 mm glue-on fittings.
• Motor body and pump: plastic.
• Pump filter: plastic.
• Pump shaft and sliding bearings: ceramic.
• The pumps are fully compliant with European CE regulations and EMC directives.
• All electronics are TüV certified.
• CE refers to the construction and safety of equipment.
• EMC refers to the uninterrupted operation of electronic equipment.
The VarioFlow pumps have a continuously adjustable flow from 0 to 100%, in 1% increments.
The reduction in flow allows a proportional reduction in consumption.
The graphs show the characteristic curves of the pumps with four different percentage values. Power consumption is indicated at the beginning and at the end of each curve. You can see the reduction in energy consumption at low speeds.
Normally, when a traditional pump is installed, a flow control valve is used without any benefit in terms of consumption; with these DC pumps, on the other hand, through digital control, a great saving on energy consumption is also achieved.
The VarioFlow-E INLINE series offers optimal ease of installation for building into technical pits, because they can be integrated anywhere within the system, as the only condition that the pump is installed below the water level.
INLINE pump technology for installation between straight pipes:
• High efficiency neodymium permanent magnet motor
• Direct installation in line with the pipes
• The pump can be installed in any position, below the water level in a technical compartment
• Easy removal of the motor for cleaning and maintenance
• New extremely silent motor technology
• External control panel with frequency regulator for variable speed control
• Open impeller to convey dirt particles up to 8 mm
• Integrated memory for automatic saving of settings in the event of a power failure
• Motor, monitor and microprocessor European design
• Connector to disconnect the pump from the control panel
• Suitable for dry and wet installation in a technical pit
• Voltage 230 V / 50 Hz
| VarioFlow INLINE-E 8 | VarioFlow INLINE-E 16 | |
| Motor W max | 0-85 | 0-135 |
| Max flow rate (l/h) | 8300 | 15600 |
| Max head (m) | 5 | 5,4 |
| Connection | 1"½ | 2" |
| Impeller pitch (mm) | 8 | 8 |
| Cable (m) | 5+1,5 | 5+1,5 |
• Slotted holes for easy installation and removal from the wall.
• Front display easily readable thanks to the corner structure.
• Splashproof panel with plug for connection between the pump and the panel.
• The digital display shows the energy consumption and the percentage of the pump set.
• Adjustable revolutions in 1% increments.
• VarioFlow-E INLINE pump with 5 meter power cable.
• Control panel with 1.5 meter power cable.
• Bonded fittings.
• The pumps are fully compliant with European CE regulations and EMC directives.
• CE refers to the construction and safety of equipment.
• EMC refers to the uninterrupted operation of electronic equipment.
VarioFlow INLINE-E pumps are the first bio-pond pumps built with inline logic. Very easy to install because they can be mounted along the pipe line.
They must be installed below the water level to ensure they function properly. The motor can also be installed vertically, as long as the pump has adequate water flow and air cannot accumulate in the motor.
AquaFlow-E are DC pumps equipped with the latest generation permanent magnet motors, which are more energy efficient and silent.
They are similar in technology to the VarioFlow-E pumps, although built without the electronics for flow regulation. There are situations where flow control is not required, but where the efficiency of the engine, of course, offers great benefits.
They are multifunctional pumps; they can be installed both underwater and dry (near water) and can be used for circulation systems, filtration systems, waterfalls and all other imaginable situations that require water transport.
Underwater, out of water - it makes no difference: all models are multifunctional, as long as there is sufficient water supply for the pump. The motors are watertight, enclosed in synthetic resin, safe and also ultra silent.
• 6-pole motor with high efficiency permanent magnets
• The pump can be used in dry or in water and is completely fully adjustable
• It can be rotated without preset positions
• Dirt passage with basket: 8 mm
• Dirt passage without basket: 12 mm for Aquaflow-E 5000 and 10000
• Dirt passage without basket: 16 mm for Aquaflow-E 15000 and 20000
• The integrated microprocessor monitors the management of the motor.
• Voltage 230 V / 50 Hz.
| AquaFlow-E 5000 | AquaFlow-E 10000 | AquaFlow-E 15000 | AquaFlow-E 20000 | |
| Motor (W) | 25 | 80 | 115 | 175 |
| Max flow rate (l/h) | 4800 | 9800 | 14900 | 20000 |
| Max head (m) | 2,5 | 4,8 | 4,9 | 5,3 |
| Connection | 1"½ | 1"½ | 2" | 2" |
| Impeller pitch (mm) | 8 | 8 | 8 | 8 |
| Cable (m) | 10 | 10 | 10 | 10 |
In addition to the flow rate (l / h), a very important aspect to consider when purchasing a pump is the pressure (m), which largely determines its energy consumption.
• AquaFlow-E pump with 10 meter power cable.
• AquaFlow E 5000/10000: fittings for 25/32/40 mm pipes and 40 mm adhesive fittings.
• AquaFlow E 15000/20000: fittings for 32/40/50 mm pipes and 50 mm adhesive fittings.
• Motor pump body and pump filter: plastic.
• Pump shaft and sliding bearings: ceramic.
• The pumps are fully compliant with the European CE standard.
• CE refers to the construction and safety of the equipment.
AcquaTec pumps are very robust classic pumps suitable where a good head is needed.
The water outlet is vertical. The filter can be removed and the pump can also be installed in dry conditions.
Suitable for filtration, waterfalls and fountains.
• Equipped with asynchronous motor
• Ceramic shaft and bearings
• Very silent
• Can be used in dry or in water
• Voltage 230 V / 50 Hz.
| AcquaTec 20 | AcquaTec 30 | AcquaTec 36 | |
| Engine (W) | 404 | 500 | 700 |
| Max flow rate (l/h) | 20000 | 30000 | 35000 |
| Max height (m) | 9 | 9 | 11 |
| Connection | 1,5" | 2" | 2" |
| Impeller pitch (mm) | 8 | 8 | 8 |
| Cable (m) | 20 | 20 | 20 |
The same technology of DC motors that is used in higher-quality pumps is available in these Compact pumps: compact in size but big in performance. Excellent performance with extremely low energy consumption.
Suitable for small filtration plants, water tanks, small ornamental fountains or to keep an opening in the pond when the surface becomes frozen.
Pumps with next-generation technology:
• Direct current motor with high efficiency
• Open impeller for transporting debris up to 4 mm
• Large pre-filter with capacity control and nozzles
| Compact-E 1800 | Compact-E 2800 | Compact-E 4200 | |
| Engine (W) | 13 | 20 | 32 |
| Max flow rate (l/h) | 1800 | 2800 | 4200 |
| Max height (m) | 2,1 | 2,6 | 3,5 |
| Connection | 5/4" | 5/4" | 5/4" |
| Impeller pitch (mm) | 4 | 4 | 4 |
| Cable (m) | 10 | 10 | 10 |
Nozzle kit with extension to be used for all Compact pumps. The vertical extension has an extra connection for another jet or a water feature.
| Type | Water bell | Volcano | Foaming |
| Compact E-1800 | ø 40 h 20 | ø 60 h 60 | h 8 |
| Compact E-2800 | ø 50 h 30 | ø 90 h 95 | h 20 |
| Compact E-4200 | ø 70 h 40 | ø 120 h 130 | h 35 |
Pumps with classic technology with efficient engine. Built in Germany.
Consumption can exceed 200 Watt for maximum head on the order of 6 meters and maximum flow rates of 20 mc / h.
External or extension basket pre-filters are hooked onto the pump.
We recommend the introduction of a speed variator to regulate the pumps in the hours of the day and in the situations that occur during the different seasons.
Suitable for filtration, waterfalls and fountains.
• Equipped with asynchronous motor
• Ceramic shaft and bearings
• Very silent
• Can be used in dry or in water
• Voltage 230 V / 50 Hz.
| Eco-Tec2 10000 | Eco-Tec2 13000 | Eco-Tec2 16000 | Eco-Tec2 20000 | |
| Engine (W) | 110 | 140 | 190 | 205 |
| Max flow rate (l/h) | 11000 | 12600 | 15400 | 19600 |
| Max height (m) | 5,4 | 5,5 | 5,8 | 5,5 |
| Connection | 1"½ | 1"½ | 1"½ | 2" |
| Impeller pitch (mm) | 8 | 8 | 8 | 8 |
| Cable (m) | 10 | 10 | 10 | 10 |
| Dimensions L x l x H mm | 192 x 145 x 245 | 192 x 145 x 245 | 192 x 145 x 245 | 192 x 145 x 260 |
Two pump models are all you need for a wide range of applications. These newly-developed pumps are fully adjustable in terms of capacity and represent a new milestone in reducing power consumption related to pond pumps.
Made in Germany
• Highly efficient continuously variable pumps
• Steplessly adjustable DC motor technology 0>100%
• Suitable for dry and wet installation
• Extremely silent motor technology
• Control panel for continuous regulation and reading of current consumption
• The by-pass system for washing and cooling the rear bearing prevents calcification
• Boost function for greater capacity in the short term (filter rinsing function)
• Very long life cycle thanks to the use of premium materials
• Suction prefilters available separately
• Optional fine mesh pump strainer
| Q-Tec 24000 | P-Tec 18000 | |
| Motor W max | 180 | 180 |
| Quantity max (l/h) | 24000 | 18000 |
| Height max (m) | 6 | 13 |
| Connection | 2" | 2" |
| Solid handling (mm) | 8 | 3 |
| Cable (m) | 10+1,5 | 10+1,5 |
The P-Tec 18000 is fitted with a closed impeller for a high head pressure and is therefore ideal for bead and sand filter systems or fountains.
The Q-Tec 24000 has a built-in open impeller for pumping dirty water containing solid elements up to a maximum of 8 mm. This makes it a genuine all-rounder that is suitable for many pond applications.
Both pumps are steplessly adjustable in terms of capacity, which proportionally reduces power consumption.
The VarioClean Pro UVC sterilizers have been developed for applications in lakes in order to combat the proliferation of green algae (green water) and to break down the bacterial count.
• Fully adjustable, therefore easy to install
• Stainless steel 316L, tube diameter 80 mm
• Plastic parts are built in ASA
• Fully encapsulated transformer
• Low pressure lamps
• Integrated micro-switch
• 5 meters of electric cable
| VarioClean Pro 36 | VarioClean Pro 55 | VarioClean Pro 75 | |
| Flow max l/h | 10.000 | 15.000 | 20.000 |
| UVC (W) | 36 | 55 | 75 |
| Pressure (Bar) | 1 | 1 | 1 |
| Diameter (mm) | 80 | 80 | 80 |
| Dimensions l x l x h (mm) | 520 x 180 x 150 | 640 x 180 x 150 | 960 x 180 x 150 |
| Connection - flex tube | 1"1⁄2 - ø32 - 40 - 50 | 1"1⁄2 - ø32 - 40 - 50 | 1"1⁄2 - ø32 - 40 - 50 |
| Connection - ø bonding | 50 - 63 - 75 | 50 - 63 - 75 | 50 - 63 - 75 |
Water volume in m3 according to the sterilizer:
| Type | Only water | Swimming pond * | Only fish | Fish and plants | Only plants |
| VarioClean Pro 36 | 12 | 12 | 12 | 18 | 27 |
| VarioClean Pro 55 | 18 | 18 | 18 | 28 | 42 |
| VarioClean Pro 75 | 25 | 25 | 25 | 40 | 60 |
* for a swimming pond or a natural pool, evaluate with the designer whether a sterilizer system is necessary
VarioClean Pro-X UVC sterilizers are suitable where you need more power and where the flow of water to be treated is high. They are used to eliminate suspended algae and intensively fight micro-organisms that can be harmful if present in excess.
• Connections with 3" external thread
• 316L stainless steel body with opposite entry and exit
• Minimum load losses
• Disassembly of UVC lamps without system shutdown
• Electronic ballast with over / under voltage protection
• Removable ballast electric panel, suitable for wall mounting, IP65
• Lightec HO-PL lamps 9000 hours
• 3 meters of electric cable
| PRO-X 120 | PRO-X 190 | PRO-X 285 | |
| Flow in m3/h to 8 mJ/cm2 | 40 | 50 | 75 |
| Flow in m3/h to 16 mJ/cm2 | 17 | 25 | 43 |
| Flow in m3/h to 25 mJ/cm2 | 11 | 16 | 28 |
| UVC (W) | 2x60 | 2x95 | 3x95 |
| Pressure (Bar) | 2 | 2 | 2 |
| Voltage (V/Hz) | 230/50 | 230/50 | 230/50 |
| Dimensions ø | H(mm) | 204 | 604 | 204 | 604 | 204 | 604 |
| Connection | 3" - 90 mm | 3" - 90 mm | 3" - 90 mm |
Dosage 8 mJ/cm2 sufficient to eliminate suspended algae in any type of pond
Dosage 16 mJ/cm2 A large variety of micro-organisms are eradicated, especially in koi pond
Dosage 25 mJ/cm2 guideline for disinfecting traditional pools
UV-C is electromagnetic radiation, which penetrates the cell wall of a micro-organism and damages the nucleus.
This destroys its ability to multiply.
The organisms are finally destroyed and have to be filtered from the water.
The UV-C radiation can only eliminate organisms that are transported through the UV-C lamp in the water flow.
Useful organisms, such as nitrifying bacteria, do not float in the water, but attach themselves to carriers, such as the lining, plants, and filter filling, etc.
String algae also attach themselves to carriers and do not end up in the device.
Scientific research has shown which UV-C radiation level eliminates the different types of micro-organisms.
The faster the water flows through the device, the shorter the radiation time to which a micro-organism is subjected.
Suspended algae, which cause the water to turn green, are eradicated with a short burst of radiation.
In order to destroy more effective organisms, such as parasites that could cause disease among koi, the burst of radiation must be longer, in other words, the water must flow through the device more slowly.
For swimming pools, the disinfection of the water is established as a standard, which is also used for swimming ponds, here the water's flow capacity is even slower.
Cleaning a pump
Maintenance of a sterilizer
Varioflow-E - Manual
Aquaflow-E - Manual
Technical characteristics of the pumps
Technical characteristics of the sterilizers
