Ventilation Systems

Nivola
Nivola Technische Handelsonderneming B.V. was founded in 1956 and began with drying flowering bulbs using a Nivolator, a ventilator with an unique fan.

The next, logical, step was the development of the Nivolator with an integrated heating system, the Nivolair. After initially only manufacturing heating systems for greenhouses, demand rapidly grew from industry. In the meantime, the Nivolair heating system was being successfully used throughout Europe.

Besides this product group, Nivola developed a second group of products called the Sulphur Evaporator. This is used to evaporate sulphur in order to combat mildew with crops such as roses, tomatoes and peppers.

Greenhouse Nivolator

Greenhouse Nivolator

The Vertical Fan for Your Greenhouse!

The Nivolator consist of nine raised blades producing a special conical concentrically directed air stream. The under pressure at the fan causes the air to stream from bottom to top, thus creating two air streams, represented by an inner and an outer cone. In this way an ideal air circulation is produced. The fan blades can be adjusted in order to obtain the correct cone. The greenhouse ‘Nivolator’ can be used with a huge variety of crops. This includes tomatoes, peppers, roses and other flower varieties, cucumbers, strawberries etc.
BENEFITS
  • Homogeneous temperature and CO2 distribution throughout the whole greenhouse
  • Air exchange above and below the screen
  • Energy efficiency
  • Small vertical temperature gradients between roof and floor
  • No draughts, no dead climate
  • Revolutions can be adjusted
  • Ingenious air pattern
  • No obstacles
  • Soundless
  • Virtually maintenance free
  • No draughts
  • Homogeneous air distribution
TECHNICAL SPECIFICATIONS
  • 1 per 250m2 = 1 per 2691 sq ft.
  • Motorpower of 180 / 230 Watt
  • Electrical speed = Volt 700 rpm
  • Airflow = 1 Ampere, 8.000 m3 / h
  • Voltage: 230V 
  • Small vertical temperature gradient
  • Revolutions adjustable
  • Thermal safety is built in
The use of closed curtains continues to increase in the pursuit of greater energy savings. Optimizing the climate under these curtains requires a different approach. How do you get a good greenhouse climate under the closed curtains? Nivola has the solution, it is a matter of air displacement!
BENEFITS
  • Dehumidification
  • Energy-efficient and efficiently-run EC motor
  • Fewer curtain gaps and more closed curtains
  • Less use of minimum tube
  • Maintenance free
TECHNICAL SPECIFICATIONS
  • Application: 1 per ± 450 m2 = 1 per 4844 sq ft.
  • Air blowing capacity: 4900 m3 per hour
  • Connection voltage: 230 V of 110 V
  • Motor power: 260 Watt/230 volt
  • Application: 1 per ± 450 m2
  • Thermal protection built-in, Efficient 0-10V control built-in.
BENEFITS IN COMBINATION WITH THE NIVOLATOR
  • Homogeneous air humidity, temperature and CO2 distribution throughout the greenhouse
  • No drafts or dead air
  • Ingenious air pattern

NIVOLUTION

Nivolution

The Dehumidification System For Your Greenhouse!

SULPHUR EVAPORATOR

Sulphur Evaporator

Get Rid Of The Mildew!

To deal with mildew effectively, just the right amount of evaporated sulphur and a good distribution of the vapors are necessary. Nivola has specialised in fighting mildew throughout the world for more than 60 years.
BENEFITS
  • Effective and reliable
  • Optimum distribution of the sulphur
  • Low energy consumption
  • Long lifetime
TECHNICAL SPECIFICATIONS
  • Electrical power: 100 W
  • Mains voltage: 230 V of 110 V
  • Element: ceramic with E-27 fitting
  • Casing: Aluminium
  • Casing bracket: adjustable in height
  • Connecting cable 230 V: 1.75 m, 3 m or 5 m with moulded-on Euro plug. Wieland plug on demand.
  • Connecting cable 110 V: 1.75 k with moulded-on North-American plug

WHY NIVOLA?

Energy Savings with Controlled Air Movement

15 Sq Meters of Air Movement

The use of closed curtains continues to increase in the pursuit of greater energy savings. Optimizing the climate under these curtains requires a different approach. 

How do you get a good greenhouse climate under the closed curtains? Nivola has the solution, it is a matter of air displacement!

Nivola is the specialist in the production and sales of Nivola sulphur evaporators and greenhouse ventilators for the greenhouse and horticulture sector for more than 60 years.
15 Sq Meters of Air Movement

Greenhouse Nivolator

Greenhouse Nivolator
SPECIFICATIONS
  • 180 Watt motor
  • 700 rpm
  • 8.000 m3
  • 1 op 225m2
BENEFITS
  • lower probability of diseases
  • active crop
  • 20% energy savings

Uniform Temp. Distribution & Relative Humidity

Nivolution

Nivolution
Nivolution
Efficient dehumidification from optimal air-flow
BENEFITS
  • Dehumidification
  • Energy-efficient and efficiently-run EC motor
  • Fewer curtain gaps and more closed curtains
  • Less use of minimum tube
  • Maintenance free
BENEFITS IN COMBINATION WITH THE NIVOLATOR
  • Homogeneous air humidity, temperature and CO2 distribution throughout the greenhouse
  • No drafts or dead air
  • Ingenious air pattern

Dehumidification Capacity

Below, using the standard design distance, the dehumidification capacity of the Nivolution is determined per season for two types of crop. Based on the season, the AH difference between the greenhouse climate (inside) and the climate above the screens (outside) is determined.

GERBERA AH DIFFERENCE G/M 3 CAPACITY G/M 2 /H CAPACITY LITERSPER HA /H
Spring 5 54,44 545 L
Summer 2 22,78 218 L
Autumn 3,5 38,11 382 L
Winter 5,5 59,89 600 L
CUCUMBER AH DIFFERENCE G/M 3 CAPACITY G/M 2 /H CAPACITY LITERS PER HA/H
Spring 8,5 92,56 927 L
Summer 5 54,44 545 L
Autumn 4 43,56 436 L
*No cultivation in the winter months.

SULPHUR EVAPORATOR

Sulphur Evaporator

Get Rid Of The Mildew

  • Electrical power: 100 W
  • Mains voltage: 230 V of 110 V
  • Element: ceramic with E-27 fitting
  • Casing: Aluminium
  • Casing bracket: adjustable in height
  • Connecting cable 230 V: 1.75 m, 3 m or 5 m with moulded-on Euro plug. Wieland plug on demand.
  • Connecting cable 110 V: 1.75 k with moulded-on North-American plug
SAFETY

Advances in knowledge and increasing regulations have encouraged Nivola to make innovative modifications to the Nivola Sulphur Evaporator. The new shape of the bin means that if the devise is used incorrectly (hung badly, overfilled), it is impossible for the sulphur to come into direct contact with the heating element. Safety above all!
BIN

The new model of bin has a broader overhanging rim that drops easily over the internal container. All Nivola sulphur evaporators are supplied with the new model of bin. The new bins also fit the sulphur evaporators previously supplied.
COVER

The cover protects against encroaching pollution and reduces sulphur deposit on screen or glass.
PENDANT

The pendant raises the tilting point of the sulphur evaporator. This contributes greatly to the stability. A valuable preventive resource!
RECEPTACLE

In the event of misalignment, the evaporator hanging askew or accidental bumps, the Receptacle catches any sulphur that may originate from the underside of the evaporator. A valuable preventative safety tool. Eager to know what the Nivola Sulphur Evaporator can do for your company, contact us for an appointment!
Share by: